Chapter 15.04
GENERAL BUILDING PROVISIONS

Sections:

15.04.010    Adoption of the California Building Standards Code.

15.04.020    Fees.

15.04.030    Amendment of Part 2, California Building Code.

15.04.050    Amendment of Part 2.5, California Residential Code.

15.04.060    Amendment of Part 3, California Electrical Code.

15.04.070    Amendment of Part 5, California Plumbing Code.

15.04.080    Amendment of Part 11, California Green Building Standards Code.

15.04.010 Adoption of the California Building Standards Code.

A. Subject to the amendments and changes set forth herein, the following parts of the 2013 California Building Standards Code as set forth in Title 24 of the California Code of Regulations are hereby adopted by reference in their entirety including all the appendix chapters and shall apply as the building regulations of the city of Gardena:

Part 1 – California Building Standards Administrative Code.

Part 2 – California Building Code.

Part 2.5 – California Residential Building Code.

Part 3 – California Electrical Code, in its entirety.

Part 4 – California Mechanical Code, in its entirety.

Part 5 – California Plumbing Code, in its entirety.

Part 6 – California Energy Code, in its entirety.

Part 8 – California Historical Building Code.

Part 10 – California Existing Building Code.

Part 11 – California Green Building Standards Code.

Part 12 – California Reference Standards Code.

B. The most recent version of the Los Angeles County Fire Code, as set forth in Section 8.08.020, shall be part of the building regulations of the city. In cases of conflict between any provision of the Los Angeles County Fire Code and the other provisions of the building regulations of the city of Gardena, the most restrictive provision shall prevail. (Ord. 1750 § 2 (part), 2014)

15.04.020 Fees.

The city shall charge fees for all permits, plan checks, inspections and other services performed by the city relating to any portion of the building regulations of the city or any other provision of this title in an amount set by resolution of the city council. (Ord. 1750 § 2 (part), 2014)

15.04.030 Amendment of Part 2, California Building Code.

A. Section 202, definition of high-rise structure, is amended to define high-rise building at fifty-five feet instead of seventy-five feet. The revised section shall read as follows:

High-Rise Structure. Every building of any type of construction or occupancy having floors used for human Occupancy located more than 55 feet above the lowest Floor level having building access (see section 403.1.2), except buildings used as hospitals as defined in health and safety code section 1250.

B. Section 403, title of section, is amended to define high-rise building at fifty-five feet instead of seventy-five feet. The revised title to read as follows:

SECTION 403

HIGH-RISE BUILDINGS AND GROUP 1‑2 OCCUPANCIES HAVING OCCUPIED FLOORS LOCATED MORE THAN 55 FEET ABOVE THE LOWEST LEVEL OF FIRE DEPARTMENT VEHICLE ACCESS

C. Section 403.1 is amended to define high-rise building at fifty-five feet instead of seventy-five feet. The revised section to read as follows:

403.1 Applicability. New high-rise buildings and new group 1-2 occupancies having occupied floors located more than 55 feet above the lowest level of fire department vehicle access shall comply with sections 403.2 through 403.6.

D. Section 403.5.4 is amended to define high-rise building at fifty-five feet instead of seventy-five feet. The revised section to read as follows:

403.5.4 Smokeproof enclosures. Every exit enclosure in high-rise buildings shall comply with Sections 909.20 and 1022.9. Every required level exit stairway in Group I-2 occupancies serving floors more than 55 feet above the lowest level of fire department vehicle access shall comply with Sections 909.20 and 1022.9.

E. Section 406.5.5 is amended to define high-rise building at fifty-five feet instead of seventy-five feet. The revised third paragraph of the section to read as follows:

406.5.5 Area and height increases. Open parking garages of Type II construction, with all sides open, shall be unlimited in allowable area where the building height does not exceed 55 feet. For a side to be considered open, the total area of openings along the side shall not be less than 50 percent of the interior area of the side at each tier and such openings shall be equally distributed along the length of the tier. For purposes of calculating the interior area of the side, the height shall not exceed 7 feet. All portions of tiers shall be within 200 feet horizontally from such openings or other natural ventilation openings as defined in Section 406.5.2. These openings shall be permitted to be provided in courts with a minimum dimension of 20 feet for the full width of the openings.

F. Section 903.2, “Where required,” is hereby revised to read as follows:

903.2 Where required. Approved automatic sprinkler systems in buildings and structures shall be provided in the following locations:

1. New buildings: Notwithstanding any applicable provisions of Sections 903.2.1 through 903.2.12, an automatic fire-extinguishing system shall also be installed in all occupancies when the total building area, as defined in Section 502.1, exceeds 5,000 square feet, or more than two stories in height, regardless of fire areas or allowable area.

Exception: Group R-3 occupancies. Group R-3 occupancies shall comply with Section 903.2.8.

2. Existing buildings: Notwithstanding any applicable provisions of this code, an automatic sprinkler system shall be provided in an existing building when an addition occurs and when one of the following conditions exists:

a. When the addition is 33% or more of the existing building area and the resulting building area, as defined in Section 502.1, exceeds 5000 square feet; or

b. When the addition exceeds 2000 square feet and the resulting building area, as defined in Section 502.1, exceeds 5000 square feet; or

c. An additional story is added above the second floor regardless of fire areas or allowable area.

G. Section 903.2.8, “Group R,” is hereby revised to read as follows:

903.2.8. An automatic sprinkler system installed in accordance with Section 903.3 shall be provided throughout all buildings with a Group R fire area as follows:

1. New buildings: An automatic sprinkler system shall be installed throughout all new buildings.

2. Existing buildings: An automatic sprinkler system shall be installed throughout when the building area exceeds 3,600 square feet (334.5 m2) and when one of the following conditions exists:

a. When an addition is 50% or more of the existing building area, as defined in Section 502.1, within a two year period; or

b. An addition when the existing building is already provided with automatic sprinklers; or

c. When an existing Group R occupancy is being substantially renovated, and where the scope of the renovation is such that the Building Code Official determines that the complexity of installing a sprinkler system would be similar as in a new building.

H. Table 903.2.11.6, line 4, is hereby amended to read as follows:

High-rise buildings and Group I-2 occupancies having occupied floors located more than 55 feet above the lowest level of fire department vehicle access

I. Section 903.4.3, Floor control valves, line 7, is hereby amended to read as follows:

55 feet above the lowest level of fire department vehicle

J. Section 907.2.13, automatic smoke detection systems, lines 2 and 5 are hereby amended to read as follows:

more than 55 feet above the lowest level of fire department

K. Section 907.2.13.1, Automatic smoke detection, line 5, is hereby amended to read as follows:

more than 55 feet above the lowest level of fire department

L. Section 911.1 Fire Command Center, Section 911, line 4 is hereby revised as follows:

located more than 55 feet above the lowest level of fire

M. Table 1505.1 is hereby amended to read as follows:

TABLE 1505.1a

MINIMUM ROOF COVERING CLASSIFICATIONS

TYPES OF CONSTRUCTION

IA

IB

IIA

IIB

IIIA

IIIB

IV

VA

VB

B

B

B

B

B

B

B

B

B

For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2.

a. Unless otherwise required in accordance with Chapter 7A.

N. Section 1505.1.3, line 8, is amended, to read as follows:

Class B.

O. Section 1505.5 is amended by the deletion of the entire section.

P. Section 1505.7 is amended by the deletion of the entire section. (Ord. 1750 § 2 (part), 2014)

15.04.050 Amendment of Part 2.5, California Residential Code.

A. Table R301.2(1) is revised to read as follows:

TABLE R301.2(1)

CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

GROUND SNOW LOAD

WIND DESIGN

SEISMIC DESIGN CATEGORYf

SUBJECT TO DAMAGE FROM

WINTER DESIGN TEMPe

ICE BARRIER UNDERLAY-

MENT REQUIREDh

FLOOD HAZARDSg

AIR FREEZ-

ING INDEXi

MEAN ANNUAL TEMPj

Speedd (mph)

Topographic effectsk

Weatheringa

Frost line Depthb

Termitec

Zero

85

No

D2 or E

Negligible

12-24"

Very Heavy

43

No

See Exhibit B

0

60

For SI: 1 pound per square foot = 0.0479 kPa, 1 mile per hour = 0.447 m/s.

a. Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy the structural requirements of this code. The weathering column shall be filled in with the weathering index (i.e., “negligible,” “moderate” or “severe”) for concrete as determined from the Weathering Probability Map [Figure R301.2(3)]. The grade of masonry units shall be determined from ASTM C 34, C 55, C 62, C 73, C 90, C 129, C 145, C 216 or C 652.

b. The frost line depth may require deeper footings than indicated in Figure R403.1(1). The jurisdiction shall fill in the frost line depth column with the minimum depth of footing below finish grade.

c. The jurisdiction shall fill in this part of the table to indicate the need for protection depending on whether there has been a history of local subterranean termite damage.

d. The jurisdiction shall fill in this part of the table with the wind speed from the basic wind speed map [Figure R301.2(4)]. Wind exposure category shall be determined on a site-specific basis in accordance with Section R301.2.1.4.

e. Temperatures shall be permitted to reflect local climates or local weather experience as determined by the building official.

f. The jurisdiction shall fill in this part of the table with the seismic design category determined from Section R301.2.2.1.

g. The jurisdiction shall fill in this part of the table with (a) the date of the jurisdiction’s entry into the National Flood Insurance Program (date of adoption of the first code or ordinance for management of flood hazard areas), (b) the date(s) of the Flood Insurance Study and (c) the panel numbers and dates of all currently effective FIRMs and FBFMs or other flood hazard map adopted by the authority having jurisdiction, as amended.

h. In accordance with Sections R905.2.7.1, R905.4.3.1, R905.5.3.1, R905.6.3.1, R905.7.3.1 and R905.8.3.1, where there has been a history of local damage from the effects of ice damming, the jurisdiction shall fill in this part of the table with “YES.” Otherwise, the jurisdiction shall fill in this part of the table with “NO.”

i. The jurisdiction shall fill in this part of the table with the 100-year return period air freezing index (BF-days) from Figure R403.3(2) or from the 100-year (99%) value on the National Climatic Data Center data table “Air Freezing Index-USA Method (Base 32°)” at www.ncdc.noaa.gov/fpsf.html.

j. The jurisdiction shall fill in this part of the table with the mean annual temperature from the National Climatic Data Center data table “Air Freezing Index-USA Method (Base 32°F)” at www.ncdc.noaa.gov/fpsf.html.

k. In accordance with Section R301.2.1.5, where there is local historical data documenting structural damage to buildings due to topographic wind speed-up effects, the jurisdiction shall fill in this part of the table with “YES.” Otherwise, the jurisdiction shall indicate “NO” in this part of the table.

B. Section R313.1 is modified by deleting it in its entirety and replacing it with the following:

R313.1 Townhouse automatic fire sprinklers systems. An automatic residential fire sprinkler system installed in Townhouses as follows:

New buildings: An automatic sprinkler system shall be installed throughout all new buildings.

Existing buildings: An automatic sprinkler system shall be installed throughout when the building area exceeds 3,600 square feet (334.5 m2) and when one of the following conditions exists:

1. When an addition is 50% or more of the existing building area, as defined in Section 502.1, within a two year period; or

2. An addition when the existing building is already provided with automatic sprinklers; or

3. When an existing Group R occupancy is being substantially renovated, and where the scope of the renovation is such that the Building Official determines that the complexity of installing a sprinkler system would be similar as in a new building.

Section R313.2 is modified by deleting it in its entirety and replacing it with the following:

R313.2 One- and two-family dwellings automatic fire sprinklers systems. An automatic residential fire sprinkler system installed in one and two family dwellings as follows:

New buildings: An automatic sprinkler system shall be installed throughout all new buildings.

Existing buildings: An automatic sprinkler system shall be installed throughout when the building area exceeds 3,600 square feet (334.5 m2) and when one of the following conditions exists:

1. When an addition is 50% or more of the existing building area, as defined in Section 502.1, within a two year period; or

2. An addition when the existing building is already provided with automatic sprinklers; or

3. When an existing Group R Occupancy is being substantially renovated, and where the scope of the renovation is such that the Building Code Official determines that the complexity of installing a sprinkler system would be similar as in a new building.

C. Section R403.1.3 is modified by deleting the exception for masonry stem walls:

In Seismic Design Categories D0, D1 and D2 masonry stem walls without solid grout and vertical reinforcing are not permitted.

Exception: In detached one- and two-family dwellings which are three stories or less in height and constructed with stud bearing walls, plain concrete footings without longitudinal reinforcement supporting walls and isolated plain concrete footings supporting columns or pedestals are permitted.

D. Section R902.1 is amended by revising it to allow only Class A or B roofs as follows:

R902.1 Roofing covering materials. Roofs shall be covered with materials as set forth in Sections R904 and R905. A minimum Class A or B roofing shall be installed in areas designated by this section. Classes A or B roofing required by this section to be listed shall be tested in accordance with UL 790 or ASTM E 108.

E. Section R902.1.3 is amended by revising it to require a minimum Class B roof as follows:

R902.1.3 Roof coverings within all other areas. The entire roof covering of every existing structure where more than 50 percent of the total roof area is replaced within any one-year period, the entire roof covering of every new structure, and any roof covering applied in the alteration, repair or replacement of the roof of every existing structure, shall be a fire-retardant roof covering that is at least Class B.

F. Section R902.2, first paragraph is amended by revising it to allow only Class A or B treated wood roofs as follows:

R902.2 Fire-retardant-treated shingles and shakes. Fire-retardant-treated wood shakes and shingles are wood shakes and shingles complying with UBC Standard 15-3 or 15-4 which are impregnated by the full-cell vacuum-pressure process with fire-retardant chemicals, and which have been qualified by UBC Standard 15-2 for use on Class A or B roofs.

G. The definition of “Swimming Pool” in Section AG 102 is amended to read as follows:

SWIMMING POOL. Any structure intended for swimming or recreation bathing that contains water over 18 inches deep. This includes in-ground, above-ground and on-ground swimming pools, hot tubs and spas.

H. Section 105.2 is hereby amended by revising section 1 and adding a section 11 to read as follows:

1. The top of the barrier shall be at least 60 inches above grade measured on the side of the barrier which faces away from the swimming pool. The maximum vertical clearance between grade and the bottom of the barrier shall be 2 inches (52 mm) measured on the side of the barrier which faces away from the swimming pool. Where the top of the pool structure is above grade, such as an above-ground pool, the barrier may be at ground level, such as the pool structure, or mounted on the top of the pool structure. Where the barrier is mounted on top of the pool structure, the maximum vertical clearance between the top of the pool structure and the bottom of the barrier shall be 4 inches (102 mm).

11. If such lot or premises upon which such pool is located is vacant or unoccupied, all gates or doors opening into the area where such pool is located shall be kept securely locked at all times during such vacancy or unoccupancy, whether such pool is empty or filled.

(Ord. 1750 § 2 (part), 2014)

15.04.060 Amendment of Part 3, California Electrical Code.

Reserved. (Ord. 1750 § 2 (part), 2014)

15.04.070 Amendment of Part 5, California Plumbing Code.

Reserved. (Ord. 1750 § 2 (part), 2014)

15.04.080 Amendment of Part 11, California Green Building Standards Code.

Reserved. (Ord. 1750 § 2 (part), 2014)