HomeMy WebLinkAbout2010-11ORDINANCE NO. 2010-11
REPEALING EXISTING SECTIONS 10 -1 THROUGH 10 -7 OF THE DANVILLE
MUNICIPAL CODE AND ADDING NEW SECTIONS 10 -1 THROUGH 10 -6 AND
10 -12 ADOPTING NEW BUILDING REGULATIONS
The Danville Town Council does ordain as follows:
SECTION 1. REPEALING EXISTING SECTIONS 10 -1 THROUGH 10 -7 OF THE
DANVILLE MUNICPAL CODE.
Sections 10 -1 through 10 -7 of the Danville Municipal Code are hereby repealed.
SECTION 2. FINDINGS.
Pursuant to the authority of Health and Safety Code Sections 17958.5 and 17958.7, the
Danville Town Council finds that the administrative and non - administrative changes to the
State Building Code set forth in this ordinance are reasonably necessary because of certain
climatic, geologic and topographic conditions within the Town which are unique to the
locality. These specific conditions are as follows:
A. Climatic conditions which are unique to the Town of Danville:
Upper and lower temperature extremes are present creating fluctuations in soils
consistency and building materials strengths and ratings.
Excessive amounts of rainfall over a twenty -four (24) hour period for the hilly and sloping
terrain can create possible erosion and inundation ultimately resulting in the overgrowth of
natural grasses.
Hot and dry summer months are typical of the area which have a tendency to deplete the
moisture content of building materials and soils.
Hot and dry summer winds are present which can dry combustible materials causing fire
devastation.
B. Geologic conditions which are unique to the Town of Danville:
The community is within close proximity to a major earthquake fault and a defined
Alquist - Priolo study area making construction susceptible to the impacts of seismic
activity. Due to this factor, the more marginal materials for lateral resistance has been
disallowed and the bracing of older suspended ceiling systems is required when work is
proposed in the areas where these systems are located.
The expansive nature of the soils within the community which consists primarily of
alluvium require consideration of specific regulations, such as storm water runoff control
to limit the saturation of the soil and establishing minim foundation reinforcing to resist
the effects of minor soil movement, to insure the public health, safety and welfare is
protected.
C. Topographic conditions which are unique to the Town of Danville:
The predominance of the hillside terrain in conjunction with the expansive soils requires
additional precautionary measures to control and regulate building in these areas. The
control of storm runoff will help minimize erosion due to concentrated flow from
impervious surfaces. The limited access to the hillier areas and the extensive vegetation
throughout Danville warrants more stringent roofing standards to reduce the rate of fire
spread.
The extreme elevation changes between various areas of the Town dictates that unique
consideration be given to these changes and the differences and impacts associated with
the severity of change be addressed in the building code.
SECTION 3. ADDING NEW SECTIONS IN CHAPTER 10 TO THE DANVILLE
MUNICIPAL CODE RELATING TO BUILDING AND HOUSING CODES.
10 -1 BUILDING CODE.
10 -1.1 Adoption.
The California Building Code, Part 2 of the California Code of Regulations, Volumes 1 & 2,
2010 Edition, as published by the International Code Council, and as adopted and
amended by the California Building Standards Commission pursuant to Health and Safety
Code Section 17922, is adopted in its entirety subject to the changes, additions and
deletions set forth in this subsection. The numbers used herein correspond to the section
numbers in the California Building Code.
Section 1908.1.8 ACI 318, Section 22.10. Section 1908.1.8 ACI 318, Section 22.10, is amended
to read:
"Section 1908.1.8 ACI Section 22.10. Delete ACI 318, Section 22.10, and replace with
the following:
PAGE 2 OF ORDINANCE NO. 2010-11
22.10 - Plain concrete in structures assigned to Seismic Design Category C, D, E or F.
22.10.1- Structures assigned to Seismic Design Category C, D, E or F shall not have
elements of structural plain concrete, except as follows:
(a) Isolated footings of plain concrete supporting pedestals or columns
are permitted, provided the projection of the footing beyond the face of
the supported member does not exceed the footing thickness.
Exception: In detached one- and two - family dwellings three stories or
less in height, the projection of the footing beyond the face of the
supported member is permitted to exceed the footing thickness.
(b) Plain concrete footing supporting walls are permitted, provided the
footings have at least two continuous longitudinal reinforcing bars. Bars
shall not be smaller than No. 4 and shall have a total area of not less than
0.002 times the gross cross - sectional area of the footing. A minimum of
one bar shall be provided at the top and bottom of the footing. Continuity
of reinforcement shall be provided at corners and intersections.
Exception: In detached one- and two - family dwellings three stories or
less in height and constructed with stud bearing walls, plain concrete
footings with at least two continuous longitudinal reinforcing bars not
smaller than No. 4 are permitted to have a total area of less than 0.002
times the gross cross - sectional area of the footing."
10 -2 RESIDENTIAL CODE.
10 -2.1 Adoption.
The California Residential Code, Part 2.5 of the California Code of Regulations, 2010
Edition, as published by the International Code Council, and as adopted and amended by
the California Building Standards Commission pursuant to Health and Safety Code Section
17922, is adopted in its entirety subject to the changes, additions and deletions set forth in
this subsection. The numbers used herein correspond to the section numbers in the
California Residential Code.
Section 8202 Definitions. Section R202 is amended by adding the definition of Balcony,
Exterior.
"Section 8202 Definitions. Balcony, Exterior, is an exterior floor projecting from and
supported by a structure, without additional independent supports
PAGE 3 OF ORDINANCE NO. 2010-11
Table R301.5 Minimum Uniformly Distributed Live Loads (in pounds per square foot). Table
R301.5 is amended by modifying the live load of Balcony (exterior) from 40 to 60 pounds
per square foot.
8502.2.2 Decks. Section R502.2.2 is amended to read;
"R502.2.2 Decks. Where supported by attachment to an exterior wall, decks shall be
positively anchored to the primary structure and designed for both vertical and lateral
loads as applicable. Such attachment shall not be accomplished by the use of toenails or
nails subject to withdrawal. Where
positive connection to the primary
USE
LIVE
LOAD
Attics without storage
10
Attics with limited storage
20
Habitable attics and attics served
with fixed stairs
30
Balconies exterior
60
Decks
40
Fire escapes
40
Guardrails and handrails
200
Guardrail in -fill components
50
Passenger vehicle garages
50
Rooms other than sleeping room
40
Sleeping rooms
30
Stairs
structure cannot be verified during
inspection, decks shall be self -
supporting. For exterior balconies
decks, with cantilevered framing
members, connection to the walls or
other framing members shall be
designed and constructed to resist
uplift resulting from the full live load
specified in Table R301.5 acting on the
cantilevered portion of the exterior
balcony deck
4o Section R319.1 Address numbers. Section
Table R301.5 R319.1 is amended to read:
"R319.1 Address numbers. Buildings shall have approved address numbers,
building numbers or approved building identification placed in a position that is
plainly legible and visible from the street or road fronting the property. These
numbers shall contrast with their background. Address numbers shall be Arabic
numbers or alphabetical letters. Numbers shall be a minimum of 4 inches high with
a minimum stroke width of 1 /2 inch. Where access is by means of a private road and
the building address cannot be viewed from the public way, a monument, pole or
other sign or means shall be used to identify the structure.
Exception: Address numbers may be reduced to 3 inches high with a minimum
stroke width of 1 /2 inch if the numbers are illuminated by an approved means
PAGE 4 OF ORDINANCE NO. 2010-11
10 -3 ELECTRICAL CODE.
10 -3.1 Adoption.
The California Electrical Code, Part 3 of the California Code of Regulations, 2010 Edition, as
published by the National Fire Protection Association, and as adopted and amended by the
California Building Standards Commission pursuant to Health and Safety Code Section
17922, is adopted in its entirety subject to the changes, additions and deletions set forth in
this subsection. The numbers used herein correspond to the section numbers in the
California Electrical Code.
10 -4 MECHANICAL CODE.
10 -4.1 Adoption.
The California Mechanical Code, Part 4 of the California Code of Regulations, 2010 Edition,
as published by the International Association of Plumbing and Mechanical Officials and as
adopted and amended by the California Building Standards Commission pursuant to
Health and Safety Code Section 17922, is adopted in its entirety subject to the changes,
additions and deletions set forth in this subsection. The numbers used herein correspond
to the section numbers in the California Mechanical Code.
10 -5 PLUMBING CODE.
10 -5.1 Adoption.
The California Plumbing Code, Part 5 of the California Code of Regulations, 2010 Edition,
as published by the International Association of Plumbing and Mechanical Officials, and as
adopted and amended by the California Building Standards Commission pursuant to
Health and Safety Code Section 17922, is adopted in its entirety subject to the changes,
additions and deletions set forth in this subsection. The numbers used herein correspond
to the section numbers in the California Plumbing Code.
10 -6 SWIMMING POOL, SPA AND HOT TUB CODE.
10 -6.1 Adoption.
The Swimming Pool, Spa and Hot Tub Code, 2009 Edition, as published by the
International Association of Plumbing and Mechanical Officials is adopted in its entirety
subject to the changes, additions and deletions set forth in this subsection. The numbers
used herein correspond to the section numbers in the Uniform Swimming Pool, Spa and
Hot Tub Code.
PAGE 5 OF ORDINANCE NO. 2010-11
10 -12 GREEN BUILDING CODE.
10 -12.1 Adoption.
The California Green Building Standards Code, Part 11 of the California Code of
Regulations, 2010 Edition, also known as CalGreen, as published by the California Building
Standards Commission pursuant to Health and Safety Code Section 17922, is adopted in its
entirety subject to the changes, additions and deletions set forth in this subsection.
SECTION 4. ENFORCING AGENCY.
The Building Division for the Town of Danville shall administer and enforce the provisions of
this ordinance.
SECTION 5. CODIFICATION. Section 1 of this ordinance shall be codified in the
Danville Municipal Code.
SECTION 6. PUBLICATION AND EFFECTIVE DATE. The City Clerk shall have a
summary of this ordinance published twice in a newspaper of general circulation, once
within five (5) days before its adoption and once within fifteen (15) days after adoption.
This ordinance shall become effective thirty (30) days after adoption.
SECTION 7. SEVERABILITY. If any section, subsection, sentence, clause or phrase of
this ordinance is for any reason held to be invalid, such decision shall not affect the validity
of the remaining portions of the ordinance. The Danville Town Council hereby declares
that they would have adopted the ordinance, and each section, subsection, sentence, clause,
or phrase thereof, irrespective of the fact that one or more sections, subsections, sentences,
clauses or phrases was declared invalid.
PAGE 6 OF ORDINANCE NO. 2010-11
The foregoing Ordinance was introduced on November 3, 2010 and approved and adopted
by the Danville Town Council at a regular meeting held on November 16, 2010, by the
following vote:
AYES: Doyle, Stepper, Andersen, Arnerich, Storer
NOES: None
ABSTAIN: None
ABSENT: None
APPROVED AS TO FORM:
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CITY ATTORNEY
CLERK'S CERTIFICATE
MAYOR
ATTEST:
CITY CLEW
I, Marie Sunseri, City Clerk of the Town of Danville, hereby certify that the foregoing is a
true and accurate copy of Ordinance No. 2010 -11 of said Town and that said ordinance was
published according to law.
Dated: / / /�1
City Clerk of 4L� Town of Danville
PAGE 7 OF ORDINANCE NO. 2010-11