APPENDIX B
Sections:
International
Building Code Revisions
International Residential Code Revisions
Uniform Mechanical Code Revisions
Uniform Plumbing Code Revisions
National Electric Code Revisions
International Fire Code Revisions
International Building Code Revisions
109.3 Required inspections.
Section 109.3 of the International Building Code
is amended to read as follows:
109.3 Required inspections. The
building official, upon notification, shall make the inspections set forth
in Sections 109.3.1 through 109.3.10. (Ord. 1131, 2005)
109.3.1 Footing and foundation inspection:
Footing and foundation inspections shall be made after excavations for footings
are complete and any required reinforcing steel is in place. For concrete
foundations, any required forms shall be in place prior to inspection. Materials
for the foundation shall be on the job, except where concrete is ready mixed
in accordance with ASTM C 94, the concrete need not be on the job. (Ord. 1131,
2005)
109.3.2 Concrete slab and under-floor
inspection: Concrete slab and under-floor inspections shall be made
after in-slab or under-floor reinforcing steel and building service equipment,
conduit, piping accessories and other ancillary equipment items are in place,
but before any concrete is placed or floor sheathing installed, including
the sub-floor. (Ord. 1131, 2005)
109.3.3 Lowest floor elevation:
In flood hazard areas, upon placement of the lowest floor, including the basement,
and prior to further vertical construction, the elevation certification required
in Section 1612.5 shall be submitted to the building official. (Ord. 1131,
2005)
109.3.4 Exterior shear-wall inspection:
To be made prior to the application of exterior siding or cover. (Ord. 1131,
2005)
109.3.5 Frame inspection:
Framing inspections shall be made after the structure is dried-in, exterior
windows installed, roof deck or sheathing and weather protected, all framing
has been completed along with all fire blocking, all penetrations have been
installed and sealed, chimneys and vents to be concealed are complete and
the rough electrical, plumbing, mechanical ducting, heating wires are completed
and ready for required testing. (Ord. 1131, 2005)
109.3.6 Insulation inspection:
To be made after frame inspection has been approved or certification issued
by a Nevada licensed insulation contractor. (Ord. 1131, 2005)
109.3.7 Lath and gypsum board inspection: Lath and gypsum board inspections
shall be made after lathing and gypsum board, interior and exterior, is in
place, but before any plastering is applied or gypsum board joints and fasteners
are taped and finished. (Ord. 1131, 2005)
109.3.8 Fire-resistant penetrations:
Protection of joints and penetrations in fire-resistance-rated assemblies
shall not be concealed from view until inspected and approved. (Ord. 1131,
2005)
109.3.9
Energy efficiency inspections: Inspections shall be made to determine
compliance with Chapter 13 and shall include, but not limited to, inspections
for: envelope insulation R and U values, penetration U value, duct system
R value, and HVAC and water-heating equipment efficiency. (Ord. 1131, 2005)
109.3.10 Other inspections:
In addition to the inspections specified above, the building official is authorized
to make or require other inspections of any construction work to ascertain
compliance with the provisions of this code and other laws that are enforced
by the Building Department. (Ord. 1131, 2005)
109.3.11 Special inspections:
For special inspections, see IBC Section 1704. (Ord. 1131, 2005)
109.3.12 Final inspection:
The final inspection shall be made after all work required by the building
permit is completed. (Ord. 1131, 2005)
111.4 Newly constructed separately
owned multiple residential and commercial buildings.
Section 111 of the IBC is amended by adding
a new subsection as follows:
Section 111.4. Construction
of buildings for separately owned multiple commercial and residential condominiums
on a single lot must comply with the following:
1. Each unit must have a separate electric
meter and an accessible disconnect.
2. Each unit must have a separate water service
and an accessible shut-off.
3. Each unit must have a separate heating system.
4. Where gas or propane is provided for use
each unit must have a separate service and accessible shut-off. (Ord. 1131,
2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994; Ord. 558, 1992)
901.8. Automatic fire extinguishing
systems--Special provisions.
Section 901 of the IBC is amended by adding new subsections as follows:
901.8 All buildings or structures
outside the jurisdiction of the Tahoe-Douglas Fire Protection District having
a total building area of 5,000 square feet or more, and all buildings or structures
three stories high or in excess of 45 feet in height, whichever is less, must
be provided with automatic fire sprinkler protection, except as provided for
in this section.
Exceptions. New buildings
or structures designated as R-3, Group U occupancies are exempted from the
sprinkler system requirements. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711,
1995; Ord. 641, 1994; Ord. 543, 1991; Ord. 517, 1990; Ord. 491, 1989; Ord.
437, 1985)
901.8.1 No other exceptions
to the requirements of section 901.8 will be permitted except by the approval
of the building official and fire marshal. If the building official or fire
marshal do not approve, no exception will be allowed unless approved by majority
of the building and fire board of appeals. In instances where buildings or
structures are exempted from the requirements of section 901.8 by the approval
of the building official and fire marshal or an affirmative vote of the board
of appeals, the buildings or structures must be equipped with an acceptable
alternate method of providing fire protection. (Ord. 1131, 2005; Ord. 802,
1998; Ord. 711, 1995; Ord. 641, 1994; Ord. 491, 1989; Ord. 437, 1985)
901.8.2 Installation, inspection,
maintenance and testing of sprinkler systems or any alternative extinguishing
system approved pursuant to section 901.8.1 must meet the requirements set
forth in the current edition of the National Fire Protection Association (“NFPA”)
standard for the installation of sprinkler systems, NFPA 13, 13D, or 13R as
applicable. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994;
Ord. 491, 1989; Ord. 437, 1985)
901.8.3 Total building area
is defined for the purpose of this section as the total floor area in square
feet for all floor levels within the exterior walls, or under the horizontal
projection of the roof of a building. (Ord. 1131, 2005; Ord. 802, 1998; Ord.
711, 1995; Ord. 641, 1994; Ord. 491, 1989; Ord. 437, 1985)
901.8.4 All new buildings
within the jurisdiction of the Tahoe-Douglas Fire Protection District must
be provided with automatic fire sprinkler protection except for the following
exemptions.
1. Single family dwellings less than 5,000
square feet in floor area. Attached accessory uses must be included in calculations
of floor area.
2. Single family dwellings of 5,000 square
feet in floor area or more if it meets all conditions of minimum fire flow,
fire department access and NFPA 299 regulations. Attached accessory uses must
be included in calculations of floor area.
3. Buildings other than single-family residences
and private garages, having a floor area less than 800 square feet and being
classified as a light hazard occupancy as listed in the IBC
The exceptions must not reduce or eliminate any requirements for fire-extinguishing
systems found in chapter 9 of the IBC. (Ord. 1131, 2005; Ord. 802, 1998; Ord.
711, 1995; Ord. 641, 1994; Ord. 573, 1992; Ord. 543, 1991; Ord. 517, 1990)
901.8.5
All existing buildings within the jurisdiction of the Tahoe-Douglas Fire Protection
District must be provided with automatic fire sprinkler protection when changing
use or when increasing the total floor area except for the following exceptions.
1. Single family dwellings when the total floor
area is less than 5,000 square feet. Attached accessory uses must be included
in calculations of floor area.
2. Single family dwellings of 5,000 square
feet in floor area or more if it meets all conditions of minimum fire flow,
fire department access and NFPA 299 regulations. Attached accessory uses must
be included in calculations of floor area.
3. Buildings other than single-family residences
and private garages, having a floor area less than 800 square feet and being
classified as a light hazard occupancy as listed in IBC.
The exceptions must not reduce or eliminate any requirements for fire-extinguishing
systems found in chapter 9 of the IBC. (Ord. 1131, 2005; Ord. 802, 1998; Ord.
711, 1995; Ord. 641, 1994; Ord. 573, 1992; Ord. 543, 1991; Ord. 517, 1990)
901.8.6 No other exceptions
to the requirement of sections 901.8.4 and 901.8.5 will be permitted except
by an affirmative majority vote of the board of appeals. To grant an exemption
the board of appeals must either: (i) require the buildings of structures
to have an alternative extinguishing system, or (ii) require an acceptable
alternative method of providing fire protection which will provide additional
safety for occupants, better access for the fire department and other improved
fire safety conditions when the board makes the finding that the exemption
is based on low risk to life safety and property value. No exemption is allowed
by the board of appeals unless the building or structure meets the minimum
requirements of the IBC. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995;
Ord. 641, 1994; Ord. 517, 1990)
901.8.7 Installation, inspection,
maintenance and testing of sprinkler systems or any alternative extinguishing
system approved pursuant to section 901.8.6 must meet the requirements as
set forth in the current edition of the NFPA standard for the installation
of sprinkler systems, NFPA 13, 13D, or 13R, as applicable. (Ord. 1131, 2005;
Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994; Ord. 517, 1990)
901.8.8 Total building area
is defined for the purpose of this section as the total floor area in square
feet for all floor levels within the exterior walls, or under the horizontal
projection of the roof of a building. (Ord. 1131, 2005; Ord. 802, 1998;
Ord. 711, 1995; Ord. 641, 1994; Ord 573, 1992; Ord. 543, 1991; Ord. 517, 1990)
Chapter 9 of the IBC is amended by adding the following section:
912 Emergency Services Communications
912.2 When required.
Except as otherwise provided in this section, no person or entity shall construct
or develop any commercial or industrial building or structure that fails to
support adequate radio coverage for emergency service workers, including but
not limited to, firefighters and police officers.
These provisions apply to:
1. New buildings and structures greater than
50,000 square feet (for purposes of this section area separation walls cannot
be used to define separate buildings).
2. All basements more than 10,000 square feet,
where the design occupant load is greater than 50, regardless of the occupancy.
3. Any building additions or remodel work that
result in a building meeting the criteria in this section.
4. Any additions or building remodels that
exceeds $500,000.
5. Any building that creates a “special hazard”
for emergency services communications in addition to the normal hazard of
the occupancy.
This requirement may be waived by the fire chief for fire operations and the
sheriff for law
enforcement application but only with the concurrence of the communications
director. (Ord. 1131, 2005; Ord. 1062, 2004)
912.3 Definitions.
1. Enhanced amplification system:
The equipment to provide adequate signal strength to achieve the required
adequate radio coverage, including: radiating cable systems, internal multiple
antenna systems with a frequency range established by Douglas County, with
amplification systems as needed, voting receiver system, or any other appropriate
emergency service.
2. Special hazard: Construction
known to limit communications.
3. Radio coverage: A successful
two-way communications test between the building interior and the communications
center for all appropriate emergency service providers for the building.
4. Special Inspector: A communications
technician appointed by the director of communication. (Ord. 1131, 2005; Ord.
1062, 2004)
912.4 Performance requirements–Building
interior.
1. A minimum average field strength of -80
dBm throughout 90% of the area of each floor of the building when transmitted
from the appropriate transmitter of the emergency service dispatch center
that is providing fire and emergency medical protection services to the building.
2. The following areas must be 100% covered
at the minimum field strength of -80dBm: fire command centers, elevators,
stairwells, protect-in-place areas, lobby refuge areas, equipment rooms, high
hazard areas, basements, and underground parking areas.
3. If the system requires electrical power
for operation, it must have an independent battery or generator system capable
of operating for a period of at least four hours without maintenance. This
backup power system must be able to insure uninterrupted communications when
external power is lost. (Ord. 1131, 2005; Ord. 1062, 2004)
912.5 Guidelines for general measurements.
1. FCC Authorization.
If electronic amplification is used in the system, all FCC authorizations
must be obtained prior to the use of the system. A copy of these authorizations
must be provided to the special inspector.
2. Equipment.
A. A calibrated service
monitor (with a factory calibration dated within 24 months) with a service
monitor using a unity gain antenna on a small ground plane.
B. A unity gain vertically
polarized ground-plane antenna. The ground plane must be 3 to 4 feet above
the floor.
3. Measurements.
Three measurements of filed strength must be
made at each location. If measurements vary, an average measurement may be
used.
4. Confirmation.
The special inspector must do a hands-on radio
test of selected area locations to check for intelligibility of the communications.
Garbling of communications due to reflections, multipath, or other propagation
conditions takes precedence over signal strength measurements.
5. Radio frequency field strength information.
A. Location, elevation,
date, and time of field strength test.
B. The persons or entity
conducting the tests.
C. Map showing location
of all government transmitters in relation to the building, including their
height and distance.
D. List of frequencies
and antenna bandwidth calculations.
E. Copies of FCC Licenses
for frequencies.
F. Field strength test
results for each receiver location. (Ord. 1131, 2005; Ord. 1062, 2004)
912.6 Initial tests.
1. Before a certificate of occupancy may be
issued for a building that must meet the requirements of this section, an
initial test plan must be submitted to the special inspector for approval
and a successful completion of the test. The plan must contain:
2. Initial tests:
All testing must be done under the supervision of the special inspector.
A. Signal strength,
both inbound and outbound as defined above, must be measured on each and every
floor above and below ground, including stairwells, basements, penthouse facilities,
and parking areas of the structure.
B. The structure must
be divided into 100-foot grids with the measurements taken at the approximate
center of each grid. In critical areas that require 100% coverage, the grids
must be reduced to 25 feet. In areas where displays, equipment, stock, or
any other obstruction may significantly affect communications, the size of
the grids may also be further reduced upon recommendations by the special
inspector.
C. A spot located approximately
in the center of a grid area will be selected for the test. If this location
fails, the grid is marked failed. Other locations within the grid cannot be
substituted to pass the test.
D. The test must be
conducted using a portable hand-held radio approved by the special inspector.
E. Two-way communications
to and from the outside of the building through dispatch will be used.
F. Each grid area will
be tested for transmission and reception; minimum signal strength of
-80 dBm. If signal strength fails to meet the requirement, the grid area must
be marked as a fail.
G. The gain values
of all amplifiers must be measured and the test measurement results must be
kept on file at the facility and the fire department. These measurements must
be verified each year during the annual tests. If the measurement results
are lost, the building owner will be required to rerun the acceptance test
to reestablish the gain values. (Ord. 1131, 2005; Ord. 1062, 2004)
912.7 Annual tests by property owner.
The property owner must conduct an annual test
of all active components of the system, including but not limited to, amplifiers,
power supplies, and backup batteries a minimum of once every 12 months. Amplifiers
must be tested to ensure that the gain is within .5 dB of the power at the
time of installation. Backup batteries and power supplies must be tested under
load for a period of 1 hour. If, at the end of the test period, the output
power of the amplifier has decreased by more than .5 dB, the system will have
failed the test. If the special inspector requires, the test may be extended
for additional 1-hour periods until the testing technician confirms the integrity
of the backup unit. All other active components must be checked to determine
that they are operating within the manufacturer’s specifications for the intended
purpose. (Ord. 1131, 2005; Ord. 1062, 2004)
912.8 Annual tests by emergency services
agencies.
Annual tests must also be conducted by the
emergency services agencies or their designated representatives. These tests
will be a subset of the initial tests. If the tests fail to demonstrate adequate
system performance, the owner of the building or structure will be required
to restore the system in a manner consistent to meet the original approval
criteria. If the degradation to the system is due to new building additions,
or remodeling, the owner of the building or structure will be required to
restore the system to meet the original approval criteria in order to obtain
a final inspection for occupancy. (Ord. 1131, 2005; Ord. 1062, 2004)
1019.1.7 Stairway numbering system.
Section 1019.1.7 of the IBC is amended by adding
the following language:
All signs on doors leading to stairways that extend to the roof must be green
in color. All other signs on doors leading to stairways must be red in color.
(Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 437, 1985)
1503.1
Weather protection.
Section 1503.1 of the IBC is amended by adding the
following language: Roof decks shall be covered with approved roof coverings
secured to the building or structure in accordance with the provisions of
this chapter. Roof coverings shall be designed, installed and maintained in
accordance with this code and the approved manufacturer’s instructions such
that the roof covering shall serve to protect the building or structure. Roof
ice build-up protection is required at an elevation of 5,300 feet and above
throughout the County. (Ord. 1131, 2005)
1507 Roof covering materials and application.
Section 1507 of the IBC is amended by adding
the following language to section 1507.8 to apply to all structures within
the jurisdiction of the Tahoe Douglas Fire Protection District. (Ord. 1131,
2005; Ord. 1112, 2005)
1507.8 Class A roofing materials required
in Tahoe Douglas Fire Protection District.
1. All new roofs in the Tahoe Douglas Fire
Protection District must have Class “A” material applied. Built up roofing
that has a mineral surface may have Class “B” material. A person may not apply
nonrated roofing or shingle siding materials, such as wood shakes or shingles,
on any new construction or subsequent reapplication.
2. Reroofing and repairs where more than 25
percent of the roof area is under construction or replacement must meet all
the provisions of this section for new construction. Where the reroofing or
repairs is less than 25 percent of the roof area, matching the existing materials
may be permitted provided any wood product, such as wood shake or shingle
material, is a Class “B” pressure treated product. This exception may be allowed
only once per structure.
3. Wood shake or shingle siding material may
not be applied to the exterior surface of a structure within 8 feet of the
adjacent ground level, and wood shingle siding material may not exceed 10
percent of the total area of the structure side. Wood shake or shingle siding
must be Class “B” or better materials. Wood shingle siding presently in existence
may be repaired only with Class “B” rated materials. (Ord. 1131, 2005; Ord.
1112, 2005)
1608 Snow loads.
Section 1608.1 of the IBC is amended by adding
the following language:
For areas in Douglas County above 6,000 feet
elevation, roof live loads are 150 pounds per square foot throughout. Elsewhere
in county, roof live loads are 30 pounds per square foot throughout. (Ord.
1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994; Ord. 437, 1985)
1609.3
Basic wind design.
Section 1609.3 of the IBC, is amended by substituting
the following language:
The minimum basic wind speed at any site in
the County is 105 miles per hour (three second gust) for determining design
wind pressure. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641,
1994, Ord. 558, 1992)
1609.4 Exposure category.
Section 1609.4 of the IBC, first paragraph,
is amended to read as follows:
An exposure of "C" shall be used as a minimum in the design of all
structures within the County. All structures within ¼ mile from the
shoreline at Lake Tahoe shall be designed as minimum exposure "C".
Exposure B may be used for all structures in the Lake Tahoe basin area between
¼ mile of the lake and below the elevation of 7200 feet and meeting
the requirements of exposure B.
When applying the simplified wind load method,
a single exposure category shall be used based upon the most restrictive for
any given wind direction. (Ord. 1131, 2005)
1802.1 Foundation and soils investigation--General.
Section 1802.1 of the IBC is amended by adding
the following sentence:
The building official may require a soils investigation
and foundation engineering on construction sites sloping in excess of 15 percent.
(Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 437, 1985)
1805.1 Footings and foundations.
Section 1805.1 of the IBC is amended to read
as follows:
Footings and foundations, unless otherwise
specifically provided, shall be constructed of masonry, concrete or treated
wood in conformance with International Building Code and shall in all cases
extend below the frost line. Footings of concrete and masonry shall be of
solid material. Foundations supporting wood shall extend at least 6 inches
(152 mm) above the adjacent finish grade. (Ord. 1131, 2005)
1805.2: Frost line.
Section
1805.2 of the IBC is amended by adding the following sentence:
The frost line referred to shall be defined as 24
inches below finished grade, at elevations of 6,000 feet or more and 18” below
finished grade at elevations of less than 6,000 feet. (Ord. 1131, 2005)
Table 1805.4.2: Foundations for stud
bearing walls.
Table 1805.4.2 of the IBC is amended to read
as follows:
TABLE 1805.4.2 FOUNDATIONS
FOR STUD BEARING WALLS
MINIMUM REQUIREMENTS 1, 2, 3, 4, 5
| Number of Stories Supported by the Foundations |
Minimum Thickness of Foundation Wall (Inches) |
Minimum Width of Footing (Inches) |
Minimum Thickness of Footing (Inches) |
Minimum Depth of Foundation Below Natural Surface of Ground and Finish Grade (Inches) |
Concrete |
Unit Masonry |
||||
1 |
8 |
8 |
16 |
8 |
18 |
2 |
8 |
8 |
16 |
8 |
18 |
3 |
10 |
10 |
18 |
10 |
18 |
1. Where unusual conditions or frost conditions are found, footings and foundations
shall be as required in Section 1806.1.
2. The ground under the floor may be excavated to the elevation of the bottom
of the footing.
3. Foundations may support a roof in addition to the stipulated number of
floors. Foundations supporting roofs only, shall be as required for supporting
one floor.
4. Foundations may support a roof in addition to the allowed number of floors.
Foundations supporting roofs only must be the same as those required for supporting
one floor.
5. Exterior non-bearing walls must be supported by a foundation. Foundations
supporting exterior non-bearing walls must be the same as those required for
supporting one floor. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord.
641 1994; Ord. 558, 1992; Ord. 437, 1985)
1805.10 Weathered foundations.
Section1805 is amended by adding a new subsection1805.10
to read as follows:
1805.10 Any foundation which
has weathered through two or more winters without any structure built on it
to give protection must have an inspection by a structural engineer licensed
by the State of Nevada who must certify that the foundation is structurally
sufficient to carry the load to be imposed on it, or certify specifications
necessary for repairs which may be required to bring it to an acceptable condition
where it will adequately support the structure to be built upon it. (Ord.
1131, 2005)
2304.9.1: Fastener requirement.
Section 2304.9.1 of the IBC is amended to read
as follows:
Connections for wood members shall be designed
in accordance with the appropriate methodology in Section 2301.2. The number
and size of nails connecting wood members shall not be less than that set
forth in Table 2304.9.1. Roof trusses and rafter ties shall be fastened to
the top plate at all points of bearing by approved truss ties. (Ord. 1131,
2005)
2903 Temporary toilets.
Chapter 29 of the IBC is amended by adding
the following section:
Section 2903 During construction,
unless alternative facilities are made available, temporary toilets must be
provided on the basis of the following rate of toilets to the number of workers
on the job at a ratio of one for each 30 workers. In addition, urinals must
be provided on the basis of one for each 30 men. The toilets must be available
within 300 feet of the structure under construction. (Ord. 1131, 2005; Ord.
802, 1998; Ord. 711, 1995; Ord. 641, 1994; Ord. 558, 1992; Ord. 437, 1985).
3001 Elevators and conveying systems.
Section 3001.1 of the IBC is amended to read
as follows:
The provisions of this chapter shall apply
to the design, installation, operation, alteration and repair of elevators,
dumbwaiters, escalators and moving walks and their hoist ways. Additional
provisions may be required, regulated and enforced through chapter 618 of
the Nevada Revised Statutes and NAC 618.400 - 618.507 by the State of Nevada
Department of Business and Industry. When conflicts arise between the provisions
of the International Building Code, chapter 30 and NRS chapter 618, the most
restrictive shall govern. (Ord. 1131, 2005)
3103 Temporary structures.
Section 3103.1 of the IBC is amended by adding:
Temporary construction facilities, which are
located on site in conjunction with valid building permits and occupied by
job site personnel, which have connection only to electrical power, may be
exempt from the provisions of section 3103. (Ord. 1131, 2005)
3313
Safety and security.
Chapter 33 of the IBC is amended by adding a new
section as follows:
Section 3313. The building official
may require fencing around the construction site to make the property safe
for the public. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641,
1994; Ord. 437, 1985).
3314 Debris on construction site.
Chapter 33 of the IBC is amended by adding
a new section as follows:
Section 3314. All debris on
construction sites must be contained and removed periodically as required
for safety and cleanliness. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995;
Ord. 641, 1994; Ord. 437, 1985)
3406.4 Conversion of existing buildings
into separately owned multiple commercial and residential buildings.
Section 3406 of the IBC is amended by adding the following subsection:
Section 3406.4 Conversion
of existing buildings to separately owned multiple commercial and residential
condominiums on a single lot must comply with the following:
1. Each unit must have
a separate electric meter and an accessible disconnect.
2. Each unit must have
a separate water service and an accessible shut off.
3. Each unit must have
a separate heating system.
4. Where gas or propane
is provided for use each unit must have a separate service and accessible
shut off. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994;
Ord. 558, 1992)
IBC APPENDIX Amendments.
Appendix I104.2 Patio covers-Footings.
I104.2 of the IBC is amended to read as follows:
A patio cover is permitted to be supported
on a concrete slab on grade without footings, provided the slab conforms to
the provisions of Chapter 19 of this code, is not less than 3-1/2 inches thick
and further provided that the columns do not support loads in excess of 750
pounds (3.36 kN) per column. (Ord. 1131, 2005)
INTERNATIONAL RESIDENTIAL CODE
Table
R301.2 (1): Climatic and geographic design criteria.
Table R301.2 (1) of the IRC is amended to read as
follows:
TABLE R301.2 (1)
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA
GROUND SNOW LOAD |
WIND SPEED (mph) |
SEISMIC DESIGN CATE-GORY |
SUBJECT TO DAMAGE FROM |
WINTER DESIGN TEMP |
ICE SHIELD UNDER-LAYMENT REQUIRED |
FLOOD HAZARDS |
AIR FREEZ-ING INDEX |
MEAN ANNUAL TEMP |
|||
Weather-ing |
Frost line depth |
Termite |
Decay |
||||||||
See Amended Sec 1608.2 |
105 |
D2 D2 |
SEVERE SEVERE |
24” > 6,000 ft. elev., 18”< 6,000 elev. ft. |
MODER-ATE TO HEAVY |
NONE TO SLIGHT |
10° F |
YES ABOVE 6000 ' |
SEE TITLE 20 CHAPTER 20.50 |
594 |
49.4°F |
(Ord. 1131, 2005)
R309.1
Opening protection.
Section R309.1 of the IRC is amended to read
as follows:
Openings from a private garage directly into
a room used for sleeping purposes shall not be permitted. Other openings between
the garage and residence shall be equipped with self closing solid wood doors
not less than 1 3/8 inches in thickness, self closing solid or honeycomb core
steel doors not less than 1 3/8 inches thick, or self closing 20-minute fire-rated
doors. (Ord. 1131, 2005)
R309.2 Separation required.
Section R309.2 of the IRC is amended to read
as follows:
The garage shall be separated from the residence
and its attic area by not less than 5/8 inch type “X” gypsum board applied
to the garage side. Garages beneath habitable rooms shall be separated from
all habitable rooms above by not less than 5/8 inch type “X” gypsum board
of equivalent. Where the separation is a ceiling assembly, the structure supporting
the separation shall also be protected by not less than 5/8 inch type “X”
gypsum board or equivalent. (Ord. 1131, 2005)
R309.7 Driveways.
Section R309 of the IRC is amended by adding
a new subsection as follows:
R309.7 For every private access
from a public provided with a driveway, the driveway must not exceed a maximum
gradient between vertical transitions of 14% (i.e., 1¾ vertical inches
per horizontal foot), this maximum gradient shall be determined from the proposed
finish garage floor elevation to the public-way or street access. The alignment
must be safe and convenient to back a car out, or an adequate turnaround must
be provided. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994;
Ord. 437, 1985).
R311.2.2 Under stair protection.
Section R311.2.2 of the IRC is amended to read
as follows:
Enclosed accessible space under stairs shall
have walls, under stair surface and any soffits
protected on the enclosed side with 5/8 inch type “X” gypsum board. (Ord.
1131, 2005)
Table R403.1: Minimum footing and foundation
requirements.
Table R403.1 of the IRC is amended to read
as follows:
TABLE R403.1 MINIMUM FOOTING & FOUNDATIN REQUIREMENTS 1, 2, 3, 4, 5
Number of Stories Supported by the Foundations |
Minimum Thickness of Foundation Wall (Inches) |
Minimum Width of Footing (Inches) |
Minimum Thickness of Footing (Inches) |
Minimum Depth of Foundation Below Natural Surface of Ground and Finish Grade (Inches) |
|
|
Concrete |
Unit Masonry |
|
|
|
1 |
8 |
8 |
16 |
8 |
18 |
2 |
8 |
8 |
16 |
8 |
18 |
3 |
10 |
10 |
18 |
10 |
18 |
1. Where unusual conditions or frost
conditions are found, footings and foundations shall be as required in Section
R403.1.4.1.
2. The ground under the floor may be excavated to the elevation of the bottom
of the footing.
3. Foundations may support a roof in addition to the stipulated number of
floors. Foundations supporting roofs only, shall be as required for supporting
one floor.
4. Foundations may support a roof in addition to the allowed number of floors.
Foundations supporting roofs only must be the same as those required for supporting
one floor.
5. Exterior non-bearing walls must be supported by a foundation. Foundations
supporting exterior non-bearing walls must be the same as those required for
supporting one floor. (Ord. 1131, 2005, Ord. 802, 1998; Ord. 711, 1995; Ord.
641 1994; Ord. 558, 1992; Ord. 437, 1985)
R403.1.1 Minimum footing size.
Section R403.1.1 is amended by adding the following
language:
Minimum footing dimension shall be specified
in IBC Table 1805.4.2. There shall be a minimum of one #4 continuous reinforcing
bar in the top a of all foundation walls, and one #4 continuous reinforcing
bar in the footing. When the footing and foundation wall are placed separately
or when the foundation wall exceeds 24 inches in height, #4 vertical bars,
at 48 inches on center (48" O/C) or 32 inches on center when using concrete
block, shall be used to connect the footing with the foundation wall. When
engineering data is provided, the footing and foundation wall steel requirements
may be reduced. Foundation walls greater then 48 inches in height shall be
designed by a Nevada professional engineer. (Ord. 1131, 2005)
R1007 Appliance emissions.
Chapter
10 of the IRC is amended by adding the following sections:
R1007.1 General. No person
shall install any wood burning stove or fireplace insert that emits more than
the emission standards set by this section. A permit shall not be issued to
any person who wishes to install a wood burning stove or fireplace insert
that does not meet the emission standards of this section. (Ord. 1131, 2005)
R1007.2 Certification.
Each
wood burning stove or fireplace insert shall bear a certification from the
manufacturer that the appliance meets the emission standards set forth in
this section. (Ord. 1131, 2005)
R1007.3 Standards.
Wood
burning stove and fireplace inserts certified to meet the emission standards
set by United States Environmental Protection Agency under 40 CFR Part 60
are deem in compliance with the requirements of this section. (Ord. 1131,
2005)
R1007.4 Required emissions.
For
wood burning stoves and fireplace inserts the minimum emissions are as follows:
For non-catalytic appliances the emissions shall not exceed 7.5 grams, for
catalytic equipped appliances the emissions shall not exceed 4.1 grams. (Ord.
1131, 2005)
N1104 Service water heating.
Section
N1104 of the IRC is amended by adding the following subsection:
N1104.2 Hot water piping insulation.
All piping serving as part of a hot water system installed in unconditioned
areas shall be protected with a minimum R-2. Insulation shall be installed
continuously from within 2 feet of the water heater to within 2 feet of the
fixture or outlet. Insulation may be omitted when passing through a restricted
opening in framing members. (Ord. 1131, 2005)
G2401.1 (101.2) Application.
Section G2401.1 (101.2) of the IRC is amended
to read as follows:
This chapter covers those fuel gas piping systems,
fuel-gas utilization equipment and related accessories, venting systems and
combustion air configurations most commonly encountered in the construction
of one- and two-family dwellings and structures regulated by this code.
Exception: As an alternative to the provisions of this code, fuel-gas piping systems, fuel-gas utilization equipment and related accessories in existing buildings that are undergoing repairs, alterations, changes in occupancy or construction of additions shall be permitted to comply with the provisions of the International Existing Building Code.
Coverage
of piping systems shall extend from the point of delivery to the outlet of
the equipment shutoff valves (see Point of Delivery). Piping systems requirements
shall include design, materials, components, fabrication, assembly, installation,
testing, inspection, operation and maintenance. Requirements for gas utilization
equipment and related accessories shall include installation, combustion and
ventilation air and venting and connections to piping systems.
The omission from this chapter of any material or
method of installation provided for in the International Fuel Gas Code shall
not be construed as prohibiting the use of such material or method of installation.
Fuel-gas piping systems, fuel-gas utilization equipment and related accessories,
venting systems and combustion air configurations not specifically covered
in these chapters shall comply with the applicable provisions of the International
Fuel Gas Code.
Gaseous hydrogen systems shall be regulated by Chapter
7 of the International Fuel Gas Code.
This chapter shall not apply to the following:
1. Liquefied natural gas (LNG) installations.
2. LP-gas piping for buildings.
3. Except as provided in Section G2412.1.1, gas piping,
meters, gas pressure regulators, and other appurtenances used by the serving
gas supplier in the distribution of gas, other than undiluted LP-gas.
4. Portable LP-gas equipment of all types that is
not connected to a fixed fuel piping system.
5. Portable fuel cell appliances that are neither
connected to a fixed piping system nor interconnected to a power grid.
6. Installation of hydrogen gas, LP-gas and compressed
natural gas (CNG) systems on vehicles. (Ord. 1131, 2005)
P2503.7: Inspection and testing of
backflow prevention devices.
Section P2503.7 of the IRC is amended to read
as follows:
Inspection and testing of backflow prevention
devices shall comply with Section P2503.7.1 and Section P2503.7.2. (Ord. 1131,
2005)
P2503.7.1 Inspections.
Inspections
shall be made of all backflow prevention assemblies to determine whether they
are operable. (Ord. 1131, 2005)
P2503.7.2 Testing.
The owner of the premises or the responsible
person shall have the backflow prevention assembly tested by a certified backflow
assembly tester at the time of installation, repair or relocation and at least
annually thereafter unless required more frequently by the water purveyor,
or utility or the State Health Department. The periodic testing shall be performed
in accordance with procedures referenced in the University of Southern California
manual of Cross-Connection Control (Ninth Edition) by a tester qualified in
accordance with those standards and with the standards in the CA-NV section
of the AWWA backflow prevention assembly testers and cross-connection control
program. (Ord. 1131, 2005)
P2603.6: Freezing.
Section
P2603.6 of the IRC is amended to read as follows:
In localities having a winter design temperature
of 32ºF (0ºC) or lower as shown in Table R301.2 (1) of this code,
a water, soil or waste pipe shall not be installed outside of a building,
in exterior walls, in attics or crawl spaces, or in any other place subjected
to freezing temperature unless adequate provision is made to protect it from
freezing by insulation or heat or both. Water service pipe shall be installed
not less than 6 inches (762 mm) deep below the frost line. (Ord. 1131, 2005)
P2903.3.1: Maximum pressure.
Section P2903.3.1 of the IRC is amended to
read as follows:
Maximum static pressure shall be 80 psi (551
kPa). When main pressure exceeds 65 psi (448 kPa), an approved pressure-reducing
valve conforming to ASSE 1003 preceded by an adequate strainer shall be installed
and the static pressure reduced to sixty one (61) pounds per square inch (421
kPa) or less. Where pressure regulators are required, the pressure regulator
shall be installed between the source of water and after the meter and back-flow
prevention device (if installed at the meter), and before all exterior and
interior fixtures and outlets.
For potable water services up to and including one
and one-half (1-½) inch regulators, provision shall be made to prevent
pressure on the building side of the regulator from exceeding main supply
pressure. Approved regulators with integral bypasses shall be acceptable.
Each such regulator and strainer shall be accessibly located and shall have
the strainer readily accessible for cleaning without removing the regulator
or strainer body or disconnecting the supply piping. Pressure regulators shall
not be the type that can be adjusted to provide static water pressure more
than seventy five (75) pounds per square inch (518 kPa). (Ord. 1131, 2005)
P2903.7 Size of water-service mains, branch
mains, and risers.
Section
P2903.7 of the IRC is amended to read as follows:
The minimum size water service pipe shall be ¾
inch. The size of water service mains, branch mains and risers shall be determined
according to water supply demand [gpm (L/m)], available water pressure [psi
(kPa)] and friction loss due to the water meter and developed length of pipe
[feet (m)], including equivalent length of fittings. The size of each water
distribution system shall be determined according to the procedure outlined
in this section or by other design methods conforming to acceptable engineering
practice and approved by the administrative authority:
1. Obtain the minimum daily static service
pressure [psi (kPa)] available (as determined by the local water authority)
at the water meter or other source of supply at the installation location.
Adjust this minimum daily static pressure [psi (kPa)] for the following conditions:
1.1. Determine the difference in elevation
between the source of supply and the highest water supply outlet. Where the
highest water supply outlet is located above the source of supply, deduct
0.5 psi (3.4 kPa) for each foot of difference in elevation. Where the highest
water supply outlet is located below the source of supply, add 0.5 psi (3.4
kPa) for each foot of difference in elevation.
1.2. Where a water pressure reducing valve
is installed in the water distribution system, the minimum daily static water
pressure available is 80 percent of the minimum daily static water pressure
at the source of supply or the set pressure downstream of the pressure reducing
valve, whichever is smaller.
1.3. Deduct all pressure losses due to special
equipment such as a backflow preventer, water filter and water softener. Pressure
loss data for each piece of equipment shall be obtained through the manufacturer
of such devices.
1.4. Deduct the pressure in excess of 8 psi
(55 kPa) due to installation of the special plumbing fixture, such as temperature
controlled shower and flushometer tank water closet. Using the resulting minimum
available pressure, find the corresponding pressure range in Table P2903.7.
2. The maximum developed length for water piping
is the actual length of pipe between the source of supply and the most remote
fixture, including either hot (through the water heater) or cold water branches
multiplied by a factor of 1.2 to compensate for pressure loss through fittings.
Select the appropriate column in Table P2903.7 equal to or greater than the
calculated maximum developed length.
3. To determine the size of water service pipe,
meter and main distribution pipe to the building using the appropriate table,
follow down the selected maximum developed length column to a fixture unit
equal to, or greater than the total installation demand calculated by using
the combined water supply fixture unit column of Table P2903.6. Read the water
service pipe and meter sizes in the first left-hand column and the main distribution
pipe to the building in the second left-hand column on the same row.
4. To determine the size of each water distribution
pipe, start at the most remote outlet on each branch (either hot or cold branch)
and, working back toward the main distribution pipe to the building, add up
the water supply fixture unit demand passing through each segment of the distribution
system using the related hot or cold column of Table P2903.6. Knowing demand,
the size of each segment shall be read from the second left-hand column of
the same table and a maximum developed length column selected in Steps 1 and
2, under the same or next smaller size meter row. In no case does the size
of any branch or main need to be larger than the size of the main distribution
pipe to the building established in Step 3.
5. The size of pipes from the hot water heater
and all hot water branches shall not less than the minimum size necessary
to meet the water supply requirements, as outlined in this section.
6. All above determinations shall be clearly
noted on the plans, specifications, drawings or a worksheet submitted to the
Administrative Authority whenever pipes from the hot water heater exceed one
half (½) inch in diameter. (Ord. 1131, 2005)
P3005.4 Drain pipe sizing.
Section P3005.4 of the IRC is amended to read
as follows:
Drain pipes shall be sized according to drainage
fixture unit (d.f.u.) loads. The size of the drainage piping shall not be
reduced in size in the direction of flow. The following general procedure
is permitted to be used:
1. Draw an isometric layout or riser diagram
denoting fixtures on the layout.
2. Assign d.f.u. values to each fixture group
plus individual fixtures using Table P3004.1.
3. Starting with the top floor or most remote
fixtures, work downstream toward the building drain accumulating d.f.u. values
for fixture groups plus individual fixtures for each branch. Where multiple
bath groups are being added, use the reduced d.f.u. values in Table P3004.1,
which take into account probability factors of simultaneous use.
4. Size branches and stacks by equating the
assigned d.f.u. values to pipe sizes shown in Table P3005.4.1.
5. Determine the pipe diameter and slope of
the building drain and building sewer based on the accumulated d.f.u. values,
using Table P3005.4.2, but in no event shall the building sewer be less than
four (4) inches in diameter. (Ord. 1131, 2005)
P3009 Private sewage disposal system.
Section P3009 of the IRC is amended by adding
the following subsections:
P3009.1 Private system.
Whenever a private sewage disposal system is
required, the type, size, construction and its location of the system must
comply with the requirements of the State of Nevada Bureau of Health Protection.
Examination and approval of any proposed private sewage disposal system by
the State of Nevada Bureau of Health Protection or the authorized county inspector
may be required before issuance of any permit. (Ord. 1131, 2005)
P3009.2 Fees.
A fee set by resolution of the board must be
paid when application is made for a private sewage disposal system. (Ord.
1131, 2005)
P3009.3 Engineered system.
If a private sewage disposal system needs or
requires an engineered design because of high ground water or percolation
problems, an application for its approval must be submitted to the State of
Nevada Bureau of Health Protection. After the application and the engineered
system are approved by the State of Nevada Bureau of Health Protection, the
applicant must secure a letter of approval from the agency. Upon submitting
the letter of approval to the building official, the permit for the structure
may be issued. Only after the State of Nevada Bureau of Health Protection
has issued a written approval for the completion of the engineered system,
the building official may issue a certificate of occupancy for the structure
it serves. Douglas County assumes no responsibility whatsoever for the engineered
system. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994;
Ord. 439, 1985).
E3501.1 Administrative Provisions.
Section E3501.1 of the IRC is amended by adding
the following:
The administrative provisions of NFPA 70 Article
80 are adopted for use with this code. Where, in any specific case, a conflict
occurs between this code and NFPA Article 80, the requirements of the most
restrictive provision shall govern. (Ord. 1131, 2005)
E3501.2 Number of services.
Section E3501.2 of the IRC is amended by adding
a subsection to read as follows:
Properties determined to be one acre or less
shall only be supplied by one service, unless special permission is granted
by the Building Official in the form of a waiver.
Exception: An accessory dwelling
approved by the Douglas County Community Development Department, with the
electrical service installed per E3301.8 and E3301.9. (Ord. 1131, 2005)
E3501.6: Service disconnect required.
Section E3501.6 of the IRC is amended to read
as follows:
The disconnecting means shall be physically
installed and attached to the outside of the building or structure served
or where the conductors pass through the building or structure. The disconnecting
means shall be at a readily accessible location nearest the point of entrance
of the conductors. For the purpose of this section, the requirements in NEC
Article 230.6 shall be permitted to be utilized.
Exception #1: Manufactured
housing, as regulated by NRS 489 and NEC Article 550. When the disconnecting
means is mounted independently of the manufactured structure, it shall be
readily identified by a 6-inch equilateral triangle, red in color that complies
with the Fire Code.
Exception #2: The disconnecting
means may be mounted independently of the structure served, when mounted in
direct line of sight, but no greater than 50-feet from the structure, and
the independent disconnecting means is identified by a red triangle that complies
with the Fire Code. (Ord. 1131, 2005)
E3501.6.1 Marking of service equipment
and disconnects.
Service disconnects shall be permanently marked
as a service disconnect. Service equipment shall be listed for that purpose.
Individual meter socket enclosures shall not be considered service equipment.
(Ord. 1131, 2005)
E3501.6.2 Service disconnect location.
The service disconnecting means shall be installed
at a readily accessible location outside of a building or other structure
nearest the point of entrance of the service conductors. The service disconnecting
means shall be located not more than 50 feet from the building or structure
it serves. Installation of the disconnecting means shall not be more than
6’ (feet) – 6” (inches) above finish grade or front access level to the top
of the operating handle. The feeder or supply conductors to a building or
other structure, other than a detached Group U occupancy, when located more
than 50 feet from the service disconnecting means, shall have an exterior
disconnect placed at a point readily accessible nearest the point of entrance
of the feeder conductor installed not more than 6 feet above finish grade
or front access level to the top of the operating handle.
Exception: The service disconnecting
means may be installed within a building when an external, remote shunt trip
switch is provided. All shunt trip switches shall be located a maximum of
6’ (feet) – 6” (inches) above finish grade at a location approved by the fire
department. All shunt trip switches shall be located within a 6-inch equilateral
triangle, red in color. Service disconnecting means shall not be installed
in bathrooms. Each occupant shall have access to the disconnect serving the
dwelling unit in which they reside. (Ord. 1131, 2005)
E3501.8 Service group.
Section E3501 of the IRC is amended by adding
a subsection to read as follows:
E3501.8 Service group. Multiple
services, which supply more than one building or structure on the same property,
shall be grouped together with distances between panels not to exceed 10 feet
of separation, unless special permission is granted by the building official
in the form of a waiver. (Ord. 1131, 2005)
E3604.8 Feeder disconnect required.
Section E3604 of the IRC is amended adding
a subsection to read as follows:
E3604.8 Feeder disconnect required.
The disconnecting means shall be physically installed and attached to the
outside of the building or structure served or where the conductors pass through
the building or structure. The disconnecting means shall be at a readily accessible
location nearest the point of entrance of the conductors. For the purpose
of this section, the requirements in NEC Article 230.6 shall be permitted
to be utilized.
Exception
#1: Manufactured housing, as regulated by NRS 489 and NEC Article
550. When the disconnecting means is mounted independently of the manufactured
structure, it shall be readily identified by a 6-inch equilateral triangle,
red in color that complies with the Fire Code.
Exception #2: The disconnecting
means may be mounted independently of the structure served, when mounted in
direct line of sight, but no greater than 50-feet from the structure, and
the independent disconnecting means is identified by a red triangle that complies
with the Fire Code. (Ord. 1131, 2005)
E3802.11 Bedrooms outlets.
Section E3802.11 of the IRC is amended to read
as follows:
With the exception of smoke detectors, carbon monoxide detectors, and home
security systems installed on individual branch circuits, all branch circuits
that supply 125-volt, single-phase, 15- and 20-ampere outlets installed in
dwelling unit bedrooms shall be protected by an arc-fault circuit interrupter
(AFCI) listed to provide protection of the entire branch circuit. (Ord. 1131,
2005)
E4109.3 Accessibility.
Section E4109.3 of the IRC is amended to read
as follows:
Hydromassage bathtub electrical equipment access shall be on the same floor
level as the bathtub. The electrical equipment shall be accessible without
damaging the building structure or interior and exterior building finish,
no access shall be allowed through the under floor. (Ord. 1131, 2005)
H106.2 Footings.
Section H106.2 of the IRC is added to read
as follows:
A patio cover shall be permitted to be supported
on a concrete slab on grade without footings, provided the slab conforms to
the provisions of Chapter 19 of this code, is not less than 3½ inches
(89 mm) thick and further provided that the columns do not support loads in
excess of 750 pounds (3.36 kN) per column. (Ord. 1131, 2005)
UNIFORM MECHANICAL CODE REVISIONS
110 Appeals.Section 110 of the UMC is deleted and amended by substituting the following language:
The building official’s determination of the suitability of alternate materials or other means of construction may be appealed to the building and fire board of appeals in accordance with section 20.810.040. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 641, 1994; Ord. 441, 1985)
112.1 Permits.
Section 112.1 of the UMC is amended by adding the following language:
A separate permit is not required under this code if a valid building
permit has been issued under the IBC or IRC for the permitted structure.
(Ord. 802, 1998; Ord. 711, 1995; Ord. 441, 1985)
115.2 Fees.
Section 115.2 of the UMC is deleted and the following language added:
Fees are computed on the basis of the work to be performed as set by
resolution of the board. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995;
Ord. 441, 1985)
902.1
Appliance emissions.
Section 902.1 of the UMC is amended to read
as follows:
No person shall install any wood burning stove
or fireplace insert that emits more than the emission standards set by this
section. A permit shall not be issued to any person who wishes to install
a wood burning stove or fireplace insert that does not meet the emission standards
of this section.
A. Each wood burning stove or fireplace insert
shall bear a certification from the manufacturer that the appliance meets
the emission standards set forth in this section.
B. Wood burning stove and fireplace inserts
certified to meet the emission standards set by United States Environmental
Protection Agency under 40 CFR Part 60 are deem in compliance with the requirements
of this section.
C. For wood burning stoves and fireplace inserts
the minimum emissions are as follows: For non-catalytic appliances the emissions
shall not exceed 7.5 grams, for catalytic equipped appliances the emissions
shall not exceed 4.1 grams.
Any person failing to provide the statement
required under this section or installing a wood burning heater, stove, or
fireplace insert without a permit is guilty of a misdemeanor pursuant to section
20.800.090. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 675, 1994; Ord. 641, 1994;
Ord. 502, 1990; Ord. 489, 1989)
UNIFORM PLUMBING CODE REVISIONS
102.2.7 Engineered private sewage system.
Subsection 102.2.7 is added to read as follows:
If a private sewage disposal system needs or requires
an engineered design because of high ground water or percolation problems,
an application for its approval must be submitted to the State of Nevada Bureau
of Health Protection. After the application and the engineered system are
approved by the State of Nevada Bureau of Health Protection, the applicant
must secure a letter of approval from the agency. Upon submitting the letter
of approval to the building official, the permit for the structure may be
issued. Only after the State of Nevada Bureau of Health Protection has issued
a written approval for the completion of the engineered system, the building
official may issue a certificate of occupancy for the structure it serves.
Douglas County assumes no responsibility whatsoever for the engineered system.
(Ord. 1131, 2005)
102.2.8 Appeals. The building official’s determination of
the suitability of alternate materials or other means of construction may
be appealed to the building and fire board of appeals in accordance with section
20.810.040. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 558, 1992;
Ord. 439, 1985)
103.11 Permit required.
Section 103.11 of the UPC is amended by adding
the following language:
A separate permit is not required under this
code if a valid building permit has been issued under the IBC or IRC for the
permitted structure. (Ord. 1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord.
558, 1992; Ord. 439, 1985)
103.4.1 Fees.
Section 103.4.1 of the UPC is amended by deleting
the schedule of fees and substituting the following language:
Plumbing permit fees must be computed on the
basis of the work to be performed as set by resolution of the board. (Ord.
1131, 2005; Ord. 802, 1998; Ord. 711, 1995; Ord. 439, 1985)
603.1 Approval of devices or assemblies.
Section 603.1 of the UPC is amended to read
as follows:
The owner of the premises or the responsible
person shall have the backflow prevention assembly tested by a certified backflow
assembly tester at the time of installation, repair or relocation and at least
annually thereafter unless required more frequently by the water purveyor,
or utility and/or the State Health Department. The periodic testing shall
be performed in accordance with procedures referenced in the University of
Southern California manual of Cross-Connection Control (Ninth Edition) by
a tester qualified in accordance with those standards and with the standards
in the CA-NV section of the AWWA backflow prevention assembly testers and
cross-connection control program. (Ord. 1131, 2005)
604.6 Materials.
Section 604.6 of the UPC is amended as follows:
All malleable iron water fittings shall be
galvanized. All galvanized water pipe and fittings shall be kept at least
six (6) inches above final grade. (Ord. 1131, 2005)
608.2 Excessive water pressure.
Section 608.2 of the UPC is amended to read
as follows:
Where local static water pressure is in excess
of sixty-five (65) pounds per square inch (448 kPa), an approved type pressure
regulator preceded by an adequate strainer shall be installed and the static
pressure reduced to sixty-one (61) pounds per square inch (421 kPa) or less.
Where pressure regulators are required, the pressure regulator shall be installed
between the source of water and after the meter and back-flow prevention device
(if installed at the meter), and before all exterior and interior fixtures
and outlets.
For
potable water services up to and including one and one-half (1-1/2) inch (40
mm) regulators, provision shall be made to prevent pressure on the building
side of the regulator from exceeding main supply pressure. Approved regulators
with integral bypasses shall be acceptable. Each such regulator and strainer
shall be accessibly located and shall have the strainer readily accessible
for cleaning without removing the regulator or strainer body or disconnecting
the supply piping. Pressure regulators shall not be the type that can be adjusted
to provide static water pressure more than seventy-five (75) pounds per square
inch (518 kPa). All pipe size determinations shall be based on eighty (80)
percent of the reduced pressure when using Table 6-5. (Ord. 1131, 2005)
609.1 Installation.
Section 609.1 of the UPC is amended to read
as follows:
All water piping shall be adequately supported
in accordance with Section 314.0. Burred ends shall be reamed to the full
bore of the pipe or tube. Changes in direction shall be made by the appropriate
use of fittings, except that changes in direction in copper tubing may be
made with bends, provided that such bends are made with bending equipment
which does not deform or create a loss in the cross-sectional area of the
tubing. Changes in direction are allowed with flexible pipe and tubing without
fittings in accordance with the manufacturer's installation instructions.
Provisions shall be made for expansion in hot-water piping. All piping, equipment,
appurtenances, and devices shall be installed in a workmanlike manner in conformity
with the provisions and intent of the code. All water service yard piping
shall be at least six (6) inches below the average local frost depth. (Ord.
1131, 2005)
610.1 Size of potable water piping.
Section 610.1 of the UPC is amended to read
as follows:
The size of each water meter and each potable
water supply pipe from the meter or other source of supply to the fixture
supply branches, risers, fixtures, connections, outlets, or other uses shall
be based on the total demand and shall be determined according to the methods
and procedures outlined in this section. The size of pipes from the hot water
heater and all hot water branches shall not exceed the minimum size necessary
to meet the water supply requirements, as outlined in this section. Other
than systems sized by the use of Table 6-5, the system shall be designed to
assure that the maximum velocities allowed by the code and the applicable
standard are not exceeded. (Ord. 1131, 2005)
610.7 Water pipe sizing.
Section 610.7 of the UPC is amended to read
as follows:
610.7 On any proposed water piping installation
sized using Table 6-5, the following conditions shall be determined:
1. Total number of fixture units as determined
from Table 6-4, Equivalent Fixture Units, for the fixtures to be installed.
2. Developed length of supply pipe from meter
to most remote outlet.
3. Difference in elevation between the meter
and other source of supply and the highest fixture or outlet.
4. Pressure in the street main or other source
of supply at the locality where the installation is to be made.
5. In localities where there is a fluctuation
of pressure in the main throughout the day, the water piping system shall
be designed on the basis of the minimum pressure available.
All above determinations shall be clearly noted
on the plans, specifications, drawings or a worksheet submitted to the Administrative
Authority whenever pipes from the hot water heater exceed one half (½)
inch in diameter. (Ord. 1131, 2005)
717.0 Size of building sewers.
Section 717.0 of the UPC is amended to read
as follows:
The minimum size of any building sewer shall
be determined on the basis of the total number of fixture units drained by
such sewer, in accordance with Table 7-8, but in no event shall be less than
four (4) inches in diameter. No building sewer shall be smaller than the building
drain. For alternate methods of sizing building sewers, see Appendix L. (Ord.
1131, 2005)
1101.5 Subsoil drains.
Section 1101.5.1 of the UPC is amended to read
as follows:
Where required by the geotechnical engineer
or the building official, subsoil drains shall be provided around the perimeter
of buildings having basements, cellars, or crawl spaces or floors below grade.
Such subsoil drains may be positioned inside or outside of the footing, shall
be of perforated or open-jointed approved drain tile or pipe not less than
three (3) inches (80 mm) in diameter, and shall be laid in gravel, slag, crushed
rock, approved three-quarter (¾) inch (19.1 mm) crushed recycled glass
aggregate, or other approved porous material with a minimum of four (4) inches
(102 mm) surrounding the pipe on all sides. Filter media shall be provided
for exterior subsoil piping. (Ord. 1131, 2005)
Chapter 15, Firestop protection,
of the UPC is repealed. (Ord. 1131, 2005)
Appendix H 106.2 Sizing formula.
Appendix H 106.2 of the UPC is amended to read
as follows:
The size of the interceptor shall be determined by the serving utility. (Ord.
1131, 2005)
NATIONAL ELECTRICAL CODE REVISIONS
Article 80.2 Definitions.
Article 80.2 of the NEC is amended by amending the
following language:
Authority having jurisdiction. The
organization, office, or individual responsible for approving equipment, materials,
an installation, or a procedure. (Ord. 1131, 2005)
Electrical inspector. An individual
authorized to perform electrical inspections by the building official. (Ord.
1131, 2005)
Article 80.13 Authority.
Article 80.13 of the NEC is amended by amending
the following language:
Where used in this article, the term authority having jurisdiction shall include
the building official or other individuals designated by the building official.
This code shall be administered and enforced by the building official as designated
by the governing authority as follows.
1. The authority having jurisdiction shall
be permitted to render interpretations of this code in order to provide clarification
to its recommendations, as permitted by 90.4.
2. When the use of electrical equipment or
its installation is found to be dangerous to human life or property, the authority
having jurisdiction shall be empowered to have the premises disconnected from
its source of electrical supply.
The remainder of Article 80.13 will remain as adopted. (Ord. 1131, 2005)
Article 80.15 Electrical board.
Article 80.15 is repealed. (Ord. 1131, 2005)
Article 80.19 Permits and approvals.
Article 80.19 subsection (C) Issuance of Permits
is amended by adding the following:
(3) Or such items designated in writing by the building official. (Ord. 1131,
2005)
Article 80.19 (D) Annual permits
subsection is repealed. (Ord. 1131, 2005)
Article 80.19 (F) Inspections and approvals
subsection is amended to read as follows:
1. Upon the completion of any installation
of electrical equipment that has been made under a permit, it shall be the
duty of the person, firm, or corporation making the installation to notify
the electrical inspector having jurisdiction, who shall inspect the work within
a reasonable time.
2. Where the inspector finds the installation
to be in conformity with the statutes of all applicable local ordinances and
all rules and regulations, the inspector shall issue to the person, firm or
corporation making the installation a certificate of approval, authorizing
the connection to be supplied of electricity. When a certificate of temporary
approval is issued authorizing the connection of an installation, such certificates
shall be issued to expire at a time to be stated therein and shall be revocable
by the electrical inspector for cause.
3. When any portion of the electrical installation
within the jurisdiction of an electrical inspector is to be hidden from view
by the permanent placement of parts of the building, the person, firm, or
corporation installing the equipment shall notify the electrical inspector,
and such equipment shall not be concealed until it has been approved by the
electrical inspector. Where the concealment of the equipment proceeds continuously,
the person, firm, or corporation installing the equipment shall give the electrical
inspector due notice in advance, and inspections shall be made periodically
during the progress of work.
4. If, upon inspection, any installation is
found not to be fully in conformity with the provisions of Article 80, and
all applicable ordinances, rules, and regulations, the electrical inspector
making the inspection shall at once forward to the person, firm, or corporation
making the installation a written correction notice stating the defects that
have been found to exist. (Ord. 1131, 2005)
Article 80.19 subsection (H)
Applications and extensions is repealed. (Ord. 1131, 2005)
Article 80.23 Notice of violation,
penalties.
Article 80.23 subsection (B) Responsibility
of the Authority Having Jurisdiction is repealed. (Ord. 1131, 2005)
Article 80.25 Connection to electrical
supply.
Article 80.25 is amended to read as follows:
Connections to the electrical supply shall be conformed to Article 80.25 (A)
through (C).
A. Authority. It shall be unlawful for any
person, firm, or corporation to make connection to a supply of electricity
or to supply electricity to any electrical equipment installation for which
a permit is required or that has been disconnected or ordered to be disconnected.
B. Special Consideration. By special permission
of the authority having jurisdiction, temporary power shall be permitted to
be supplied to the premises for specific needs of the construction project.
The building official shall determine what needs are permitted under this
prevision.
C. Disconnection. Where a connection is made to an
installation that has not been inspected, as outlined in the proceeding paragraphs
of this section, the supplier of the electricity shall immediately report
such connection to the authority having jurisdiction. If, upon subsequent
inspection, it is found that the installation is not in conformity with the
provisions of Article 80, the building official shall notify the person, firm,
or corporation making the installation to rectify the defects and, if such
work is not completed within (15) business days, the building official shall
have the authority to cause the disconnection of the portion of the installation
that is not in conformity. (Ord. 1131, 2005)
Article 80.27 Inspector’s qualifications.
Article 80.27 is amended to read as follows:
A. Certification. All electrical inspectors
shall be certified by a nationally recognized inspector certification program
accepted by the building official. The certification program shall specifically
qualify the inspector in electrical inspections. No person shall be employed
as an Electrical Inspector unless that person is the holder of an electrical
inspector’s certification.
B. Experience. Electrical Inspector applicants
shall demonstrate the following:
1. Having demonstrated
knowledge of the standard materials and methods used in the installation of
electrical equipment.
2. Be well versed in
the approved methods of construction for safety to persons and property.
3. Be well versed in
the statutes of all related electrical work and the National Electrical Code,
as approved by the American National Standard Institute.
C. Renovation and Suspension of Authority.
The building official shall have the authority to revoke an inspector’s authority
to conduct inspections within a jurisdiction. (Ord. 1131, 2005)
Article 80.29 Liability for damages.
Article 80.29 is amended to read as follows:
Article 80 shall not be construed to affect the responsibility or liability
of any party owning, designing, operating, controlling, or installing any
electrical equipment for damages to persons or property caused by a defect
therein, nor shall Douglas County or any of its employees be held as assuming
any such liability by reason of the inspection, reinspection, or other examination
authorized. (Ord. 1131, 2005)
Article 90.2 Scope.
Article 90.2(D) of the N.E.C. is added to read
as follows:
90.2(D) Exempted work. An
electrical permit shall not be required for the following:
1. Repair or replacement
of fixed motors, transformers or fixed approved appliances of the same type
and rating in the same location.
2. Temporary decorative
lighting.
3. Repair or replacement
of current-carrying parts of any switch, contactor or control device.
4. Reinstallation of
attachment plug receptacles, but not the outlets.
5. Repair or replacement
of any overcurrent device of the required capacity in the same location.
6. Repair or replacement
of electrodes or transformers of the same size and capacity for signs or gas
tube systems.
7. Removal of electrical
wiring.
8. The wiring for temporary
(not to exceed 90 days) theater, motion picture or television stage sets and
scenery.
9. Electrical wiring,
devices, appliances, apparatus or equipment operating at less than 25 volts.
10. Temporary Carnivals
and circus equipment.
Exemption from the permit requirements of this
code shall not be deemed to grant authorization for any work to be done in
violation of the provisions of this code or any other laws or ordinances of
this jurisdiction. (Ord. 1131, 2005)
Article 210.12 (B) Dwelling unit bedrooms.
Article 210.12 (B) is amended to read as follows:
With the exception of smoke detectors, carbon monoxide
detectors, and home security systems installed on individual branch circuits,
all branch circuits that supply 125-volt, single- phase, 15-and 20-ampere
outlets installed in dwelling unit bedrooms shall be protected by an arc-fault
circuit interrupter to provide protection of the entire branch circuit. (Ord.
1131, 2005)
Article 230.2 Number of services.
Article 230.2 is amended to read as follows:
With the exception of 230.4, a building or
other structure served shall be supplied by only one service unless permitted
in Article 230.2 (A) through sets of conductors, 1/0 AWG and larger, running
to the same location and conducted together at the supply end shall be considered
to be supplying one service. (Ord. 1131, 2005)
Article 230.4 Residential or agricultural
properties.
Article 230.4 is added to read as follows:
Residential or agricultural properties determined
to be one-acre or less shall only be supplied by one service, unless special
permission has been granted by the building official.
Exception: An accessory dwelling approved by the County, with the electrical
service installed per Article 230.63 and 230.64. (Ord. 1131, 2005)
Article 230.63 Group.
Article 230.63 is added to read as follows:
Multiple services, which supply more than one
building or structure on the same property, shall be grouped together with
a distance between panels not to exceed 10-feet of separation.
Exception: As determined by the
building official, commercial or industrial properties with multi structures
where each structure is supplied by a separate service may not be required
to have all services centrally located and grouped. (Ord. 1131, 2005)
Article
230.64 Identification.
Article 230.64 is added to read as follows:
Service equipment that is grouped in centralized
locations to comply with Article 230.63 shall have a permanent affixed plaque
identifying the structure or equipment served. The disconnecting means shall
be readily identified by a 6-inch equilateral triangle, red in color that
complies with the Fire Code, as adopted by the County. (Ord. 1131, 2005)
Article 230.70(A) Service equipment-disconnecting
means.
Article 230.70(A) of the NEC is amended to
read as follows:
The service disconnection means shall be installed
at a readily accessible location physically attached to the exterior of a
building or structure nearest to the point of entrance of the service conductors.
Multiple services shall comply with Articles 230.63 and 230.64.
Exception #1: Manufactured housing, as regulated by NRS 489 and NEC Article 550. When the disconnecting means is mounted independently of the manufactured structure, it shall be readily identified by a six-inch (6) equilateral triangle, red in color that complies with the Fire Code.
Exception
#2: The disconnecting means may be mounted independently of the structure
served, when mounted in direct line of sight, but no greater than 50-feet
from the structure, and the independent disconnecting means is identified
by a red triangle that complies with the Fire Code. (Ord. 1131, 2005)
Article 680.73 Accessibility.
Article 680.73 is amended to read as follows:
Hydromassage bathtub electrical equipment access shall be on the same floor
level as the bathtub. The electrical equipment shall be accessible without
damaging the building structure or interior and exterior building finish,
no access shall be allowed through the underfloor. (Ord. 1131, 2005)
INTERNATIONAL FIRE CODE REVISIONS
101.2 Intent.
Section 101.3 of the IFC is deleted and amended substituting the following
language:
The purpose of this code is to prescribe regulations consistent with
nationally recognized good practice in the area of the hazards of fire and
explosion arising from the storage, handling and use of hazardous substances,
materials and devices, as well as the use or occupancy of buildings or premises