The California Residential Code is hereby amended as follows:
Table R301.2 - Amended.
TABLE R301.2
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA
GROUND SNOW LOAD | WIND DESIGN | SEISMIC DESIGN CATEGORYf |
SUBJECT TO DAMAGE FROM
|
WINTER DESIGN TEMPe | ICE BARRIER UNDERLAYMENT REQUIREDh | FLOOD HAZARDSg | AIR FREEZING INDEXi | MEAN ANNUAL TEMPj | |||||
Speedd
(mph) | Topographic effectsk | Special wind regionl | Wind borne debris zonesm | Weatheringa | Frostline Depthb | Termitec | |||||||
Zero | 100 | No | No | No | D2 or E | Negligible | 12 - 24" | Very heavy | 43 | No | See Exhibit B | 0 | 65.1 |
MANUAL J DESIGN CRITERIAn | |||||||
Elevation | Altitude Correction Factore | Coincident Wet Bulb | Indoor Winter Design Dry-Bulb Temperature | Indoor Winter Design Dry-Bulb Temperature | Outdoor Winter Design Dry-Bulb Temperature | Heating Temperature Difference | |
275 | 68 | ||||||
Latitude | Daily Range | Indoor Summer Design Relative Humidity | Indoor Summer Design Relative Humidity | Indoor Summer Design Dry-Bulb Temperature | Outdoor Summer Design Dry-Bulb Temperature | Cooling Temperature Difference | |
34 | 29 | 68 | 29 | ||||
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 frost line depth strength required for weathering shall govern. The weathering column shall be filled in with the weathering index, “negligible,” “moderate” or “severe” for concrete as determined from Figure R301.2(1). The grade of masonry units shall be determined from ASTM C 34, ASTM C 55, ASTM C 62, ASTM C 73, ASTM C 90, ASTM C 129, ASTM C 145, ASTM C 216 or ASTM 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(2)]. Wind exposure category shall be determined on a site-specific basis in accordance with Section R301.2.1.4. e. The jurisdiction shall fill in this section of the table to establish the design criteria using Table10A from ACCA Manual J or established criteria determined by the jurisdiction. 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: 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) and the title and date of the currently effective Flood Insurance Study or other hazard study and maps adopted by the authority having jurisdiction, as amended. h. In accordance with Sections R905.1.2, 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 l00-year (99%) value on the National Climatic Data Center data table “Air Freezing Index-USA Method (Base 32°F)” 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. l. In accordance with Figure R301.2(2), where there is local historical data documenting unusual wind conditions, the jurisdiction shall fill in this part of the table with "YES" and identify any specific requirements. Otherwise, the jurisdiction shall indicate "NO" in this part of the table. m. In accordance with Section R301.2.1.2, the jurisdiction shall indicate the wind-borne debris wind zone(s). otherwise, the jurisdiction shall indicate "NO" in this part of the table. n. The jurisdiction shall fill in these sections of the table to establish the design criteria using Table 1a or 1b from ACCA Manual J or established criteria determined by the jurisdiction. o. The jurisdiction shall fill in this section of the table using the Ground Snow Loads in Figure R301.2(3) and R301.2(4). | |||||||
Section R405.1 Concrete or masonry foundations- Exception - Deleted.
Section R902.1 Roofing covering material - Amended.
R902.1 Roofing covering materials. Roofs shall be covered with materials as set forth in Sections R904 and R905. Minimum Class A roofing shall be installed in areas designated by this section or where the edge of the roof is less than 3 feet (914 mm) from a lot line. Classes A roofing required by this section to be listed shall be tested in accordance with ASTM E 108 or UL 790.
Exceptions:
1. Class A roof assemblies include those with coverings of brick, masonry and exposed concrete roof deck.
2. Class A roof assemblies also include ferrous or copper shingles or sheets, metal sheets and shingles, clay or concrete roof tile, or slate installed on noncombustible decks.
Section R902.1.2 Roof coverings in all other areas - Amended.
R902.1.2 Roof coverings in all other areas. The entire roof covering of every existing structure where more than 20 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 A.
Section R902.2 Fire-retardant-treated shingles and shakes - Amended.
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 roofs.
Appendix AX - Swimming Pool Safety Act - Adopted.
Appendix AX of the California Residential Code is hereby adopted by reference in its entirety with amendments.
Appendix AX - Swimming Pool Safety Act - Amended.
Authority: Health and Safety Code § 18942(b)
Statutory Reference: Health and Safety Code § 18942(b);
Chapter 925, Statutes of 1996
115922
(a) Except as provided in Section 115925, when a building permit is issued for the construction of a new swimming pool or spa or the remodeling of an existing swimming pool or spa at a private single-family home, the respective swimming pool or spa shall be equipped with item # 1 and at least one additional of the following seven drowning prevention features:
1. An enclosure that meets the requirements of Section 115923 and isolates the swimming pool and spa from the private single-family home. Any walls of the residential structure or accessory structures used to complete the isolation enclosure must have door openings equipped with protection as required in 115922 (a)4 or (a)5. Any such door protection device provided for this purpose may not be used to comply with the second drowning prevention feature requirement.
2. Removable mesh fencing that meets American Society for testing and materials (ASTM) Specifications F2286 standards in conjunction with a gate that is self-closing and self-latching and can accommodate a key lockable device. The mesh fencing shall be not less than 20 inches from the water’s edge.
3. An ‘approved safety pool cover’, as defined in subdivision (d) of Section 115921.
4. Exit alarms on the private single-family home’s doors that provide direct access to the swimming pool or spa. The exit alarm may cause either an alarm noise or a verbal warning, such as a repeating notification that “the door to the pool is open.”
5. A self-closing, self-latching device with a release mechanism placed no lower than 54 inches (1372 mm) above the floor on the private single-family home’s doors providing direct access to the swimming pool or spa.
6. An alarm that, when placed in a swimming pool or spa, will sound upon detection of accidental or unauthorized entrance into the water. The alarm shall meet and be independently certified to the ASTM standard F2208 “Standard Safety Specification for Residential Pool Alarms.” Which includes surface motion, pressure, sonar, laser and infrared type alarms. A swimming protection alarm feature designed for individual use, including an alarm attached to a child that sounds when the child exceeds a certain distance or becomes submerged in water, is not a qualifying drowning prevention safety feature.
7. Other means of protection, if the degree of protection afforded is equal to or greater than that afforded by any of the features set forth above and has been independently verified by an approved testing laboratory as meeting standards for those features established by the ASTM or that American Society of Mechanical Engineers (ASME).
Before the issuance of a final approval for the completion of permitted construction or remodeling work, the local building code official shall inspect the drowning safety prevention features required by this section and, if no violations are found, shall give final approval.
(Ord. 1188, passed 12-6-16; Am. Ord. 1212, passed 11-19-19; Am. Ord. 1232, passed 11-15- 22)
Authority: Cal. Health & Safety Code § 18942(b)
Statutory references: Cal. Health & Safety Code § 115922; Chapter 925, Statutes of 1996; Chapter 478, Statutes of 2006; Chapter 670, Statutes 2017