Chapter 15.04
TECHNICAL BUILDING CODES
Sections:
15.04.010 Adoption of building codes by reference.
15.04.020 Amendments to the California Building Codes.
15.04.030 Special conditions.
15.04.040 Violations.
15.04.010 Adoption of building codes by reference.
Subject to the amendments provided for in Section 15.04.020, the following building code publications, certain appendix chapters and the references therein are hereby adopted by reference and shall be known as the County of Alpine Building Code and contained herein is comprised of the following elements:
A. The specified portions of the California Building Standards Codes known as California Code of Regulations, Title 24, Parts 2, 2.5, 3, 4, 5, 9 and 11.
B. The International Building Code, 2009 Edition, as published by the International Code Council, as adopted and amended by the California Building Standards Commission, California Building Standards Code, Title 24, Part 2, Volumes 1 and 2, of the California Code of Regulations (California Building Code, 2010 Edition), including only the following appendices:
1. Appendix A—Employee Qualifications.
2. Appendix C—Group U—Agricultural Buildings.
3. Appendix I—Patio Covers.
4. Appendix J—Grading.
C. The International Residential Code, 2009 Edition, as published by the International Code Council, as adopted and amended by the California Building Standards Commission, California Building Standards Code, Title 24, Part 2.5, of the California Code of Regulations (California Residential Code, 2010 Edition), including only the following appendices:
1. Appendix E—Manufactured Housing Used as Dwellings.
2. Appendix G—Swimming Pools, Spas and Hot Tubs.
3. Appendix H—Patio Covers.
D. The National Electrical Code, 2008 Edition, as published by the National Fire Protection Association, as adopted and amended by the California Building Standards Commission, California Building Standards Code, Title 24, Part 3, of the California Code of Regulations (California Electrical Code, 2010 Edition).
E. The Uniform Mechanical Code, 2009 Edition, as published by the International Association of Plumbing and Mechanical Officials, as adopted and amended by the California Building Standards Commission, California Building Standards Code, Title 24, Part 4, of the California Code of Regulations (California Mechanical Code, 2010 Edition).
F. The Uniform Plumbing Code, 2009 Edition, as published by the International Association of Plumbing and Mechanical Officials, as adopted and amended by the California Building Standards Commission, California Building Standards Code, Title 24, Part 5, of the California Code of Regulations (California Plumbing Code, 2010 Edition), including only appendices:
1. Appendix A—Recommended Rules for Sizing the Water Supply System.
2. Appendix D—Sizing Storm Water Drainage Systems.
3. Appendix I—Installation Standards.
G. The International Fire Code, 2009 Edition, as published by the National Fire Protection Association, as adopted and amended by the California Building Standards Commission, California Building Standards Code, Title 24, Part 9, of the California Code of Regulations (California Fire Code, 2010 Edition), including only appendices:
1. Appendix B—Fire Flow Requirements for Buildings.
2. Appendix C—Fire Hydrant Locations and Distributions.
3. Appendix E—Hazard Categories.
Said codes and any standards and secondary codes adopted by reference and the amendments therein are on file and available for public inspection in the office of the building official. (Ord. 696 § 2, 2010)
15.04.020 Amendments to the California Building Codes.
The 2010 California Building Code, hereafter (CBC), Division I and Division II, and the 2010 California Residential Code—Division II, hereafter (CRC), is hereby amended as follows:
CBC 105.2 & CRC R105.2 Work exempt from permit:
Exceptions:
1. One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided the floor area does not exceed 120 square feet. All accessory structures are subject to materials and construction methods for exterior wildfire exposure required pursuant to CBC Chapter 7A and CRC R327. All accessory structures are subject to the zoning and setback requirements of the Alpine County Community Development Department—Planning Division.
CBC 105.3.2 & CRC R105.3.2 Time limitation of application: An application for a permit for any proposed work shall be deemed to have been abandoned 180 days after the date of filing, unless such application has been pursued in good faith or a permit has been issued; except that the building official is authorized to grant one or more extensions of time for additional periods not exceeding 90 days each. The extension shall be requested in writing and justifiable cause demonstrated. No application shall be extended more than once. The fee to extend an application shall be based on the prescribed fee schedule. In order to renew action on an application after expiration, the applicant shall resubmit plans and payment of a new plan review fee.
CBC 105.5 & CRC R105.5 Expiration: Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 180 days after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 180 days after the time the work is commenced.
The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated. The extension shall not be valid until fees prescribed have been paid in accordance with the percentage of level of completion which is based on the building permit fee.
Every permit issued by the building official under the provisions of the California Building Code shall expire and become invalid three years from the date of issuance. The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The maximum validity of a permit shall not exceed four years. An extension shall not be valid until fees prescribed have been paid in accordance with the percentage of level of completion which is based on the building permit fee. Before any work can be recommenced on an expired permit, a new permit shall be obtained. On permits expired for one year or more, the Codes in effect at the time a new permit is issued shall be the Codes which apply to that permit through the point of completion or expiration.
CBC 109.4 & CRC R108.6 Work commencing before permit issuance: Any person who commences any work on a building, structure, electrical, gas, mechanical or plumbing system before obtaining the necessary permits shall be subject to an investigation fee that shall be in addition to the required permit fees. A special investigation shall be made before a permit may be issued for such work.
CBC 109.6 & CRC R108.5 Refunds: The building official may authorize the refund of any fee paid hereafter which was erroneously paid or collected. When no work has been done under a permit issued in accordance with the code, the building official may authorize the refund of not more than 80 percent of the permit fee paid.
The building official may authorize the refund of not more than 80 percent of the plan review fee paid when an application for a permit has been paid and is withdrawn or canceled before any plan reviewing is performed.
The building official shall not authorize the refund of any fee paid except on written application filed by the original permit holder not later than 90 days after the date of fee payment.
CBC 111.3 & CRC R110.4 Temporary occupancy: The building official is authorized to issue a temporary certificate of occupancy before the completion of the entire work covered by the permit, provided that such portion or portions shall be occupied safely. The temporary certificate of occupancy fee, as prescribed, is one-hundred eighty four dollars ($184) and term of temporary occupancy is limited to 90 days. An extension of term shall be requested in writing showing that circumstances beyond the control of the applicant have prevented action from being taken. The fee for additional extensions is one-hundred eighty four dollars ($184).
CBC 1505.1.1 & CRC R902.1 Roof coverings within Very High Fire Hazard Severity Zones: Class “A” Fire Rating is required for all new roofs and for any roof covering applied in the alteration, repair or replacement of the roof.
CBC 1505.1.2 & CRC R902.1.2 Roof coverings within State Responsibility Areas: Class “A” Fire Rating is required for all new roofs and for any roof covering applied in the alteration, repair or replacement of the roof.
CBC 1505.1.3 & CRC R902.1.3 Roof coverings within all other areas: Class “A” Fire Rating is required for all new roofs and for any roof covering applied in the alteration, repair or replacement of the roof.
CBC 1507.2.8.2, 1507.5.4, 1507.6.4, 1507.7.4, 1507.8.4, 1507.9.4 & CRC R905.2.7.1, R905.4.3.1, R905.5.3.1, R905.6.3.1, R905.7.3.1, R905.8.3.1 Ice barrier: In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in Table R301.2(1) (or below the 6200 foot elevation level), an ice barrier that consists of at least two layers of underlayment cemented together or a self-adhering polymer modified bitumen sheet shall be used in place of normal underlayment and extend from the lowest edges of all roof surfaces to a point at least 24 inches inside the interior wall line of the building. (For areas above the 6200 foot elevation level, a self-adhering polymer modified bitumen sheet shall be used in place of normal underlayment and extend from the lowest edges of all roof surfaces to a point at least 72 inches inside the interior wall line of the building.
A cricket or saddle-type diverter shall be installed on the ridge side of any chimney, flue or vent that is adjacent to, or penetrates the roof. Crickets or saddle coverings shall be a minimum 24 gauge sheet metal or the same material as the roof covering. Plumbing vents through the barge rafter shall be approved by the Building Official prior to installation, provided adequate clearances are maintained from windows, vents, combustion air and exhaust vents.
CBC Chapter 16 & CRC R301.2 Climatic and Geographic Design Criteria
CBC 1605.1, 1605.3, 1605.3.2 Load Combinations: are amended, with the addition of text, as follows: Roof snow load for lateral design may be reduced to 50% when Pf is greater than 150 psf. Roof snow load for lateral design may be reduced to 20% when Pf is less than 150 psf.
CBC 1608 & CRC R301.2.3 Snow Loads: are hereby amended as follows:
Site specific case studies designated as “CS”
(Pf) MINIMUM ROOF SNOW LOADS. (Pf = pounds/square foot; Hg = height above grade).
|
AREA |
Pf |
Hg |
|
Fredericksburg (below elevation 5200') |
50 |
|
|
River Ranch (elevation 5100') |
50 |
|
|
Mesa Vista (elevation 5200'—5800') |
75 |
|
|
Markleeville (elevation 5500') |
100 |
|
|
Markleevillage/Shay Creek (5600'—5800') |
125 |
|
|
Woodfords/Hawkins Ranch Area (5500'—5800') |
100 |
|
|
Crystal Springs (above elevation 5800') |
125 |
|
|
Upper Woodfords Canyon (above 6200') |
200 |
9 ft.** |
|
Hope/Faith/Charity Valleys (above 7000') |
250 |
15 ft.** |
|
Bear Valley/Kirkwood/Caples Lake (above 7200') |
300 |
15 ft.** |
|
Lake Alpine (above 7600') |
350 |
20 ft.** |
|
* Snow loads for areas not specified shall be determined by the Building Official. |
||
|
** For areas with a snow load of 150 psf or greater, no stress increases are allowed per CBC 2306. (Reference National Design Specifications for Wood Construction, Section 2.3.2, Load Duration Table 2.3.2.) |
||
CBC Table 1608.2 Ground Snow Loads: is hereby replaced as follows:
* The maximum snow load reduction for slope is limited to 50%.
|
Roof Pitch |
4:12 |
5:12 |
6:12 |
7:12 |
8:12 |
9:12 |
10:12 |
11:12 |
12:12 |
50% Max. |
|
Cs = |
0.865 |
0.795 |
0.725 |
0.660 |
0.620 |
0.550 |
0.500 |
0.460 |
0.420 |
|
|
Base Design Snow Load “Pf” (psf) |
Allowable Reduced Design Snow Loads |
|||||||||
|
50 |
43 |
40 |
36 |
33 |
31 |
28 |
25 |
23 |
21 |
25 |
|
75 |
65 |
60 |
54 |
50 |
47 |
41 |
38 |
35 |
32 |
38 |
|
100 |
87 |
80 |
73 |
66 |
62 |
55 |
50 |
46 |
42 |
50 |
|
125 |
108 |
99 |
91 |
83 |
78 |
69 |
63 |
58 |
53 |
63 |
|
150 |
130 |
119 |
109 |
99 |
93 |
83 |
75 |
69 |
63 |
75 |
|
175 |
151 |
139 |
127 |
116 |
109 |
96 |
88 |
81 |
74 |
88 |
|
200 |
173 |
159 |
145 |
132 |
124 |
110 |
100 |
92 |
84 |
100 |
|
225 |
195 |
179 |
163 |
149 |
140 |
124 |
113 |
104 |
95 |
113 |
|
250 |
216 |
199 |
181 |
165 |
155 |
138 |
125 |
115 |
105 |
125 |
|
275 |
238 |
219 |
199 |
182 |
171 |
151 |
138 |
127 |
116 |
138 |
|
300 |
260 |
239 |
218 |
198 |
186 |
165 |
150 |
138 |
126 |
150 |
|
325 |
281 |
258 |
236 |
215 |
202 |
179 |
163 |
150 |
137 |
163 |
|
350 |
303 |
278 |
254 |
231 |
217 |
193 |
175 |
161 |
147 |
175 |
CBC 1609.3.2 Basic wind speed: is hereby amended to add as follows: Alpine County is designated to be within a special wind region. In certain areas, the basic wind speed is higher, as determined by case studies and the approval of the building official.
The minimum Basic Wind Speed is 100 mph (b). For the Mesa Vista and River Ranch Area, the minimum Basic Wind Speed is 105 mph (c). The wind speeds specified above are “3 second gust (V3s).”
CBC 1613.5.6 Determination of Seismic Design Category: Structures classified as Occupancy Category I, II, or III that are located where the mapped spectral response acceleration parameter at 1-second period, S1, is greater than or equal to 0.75 shall be assigned to Seismic Design Category E. Structures classified as Occupancy Category IV that are located where the mapped spectral response acceleration parameter at 1-second period, S1, is greater than or equal to 0.75 shall be assigned to Seismic Design Category F. All other structures shall be assigned to Seismic Design Category D. *Tables 1613.5.6(1) and 1613.5.6(2) are hereby struck.
CBC 1803.1.1.4 Geotechnical Investigations: is hereby added as follows: Projects with specialized foundation systems, i.e. retaining walls or drilled piers, may require a geotechnical investigation as determined by the building official.
The 2010 California Plumbing Code, hereafter (CPC), is hereby amended, as follows:
CPC 604.1.2 Materials: The installation and use of cross-linked polyethylene (PEX) piping is considered by the County of Alpine to be an “Alternate Material and Method” and, pursuant to CPC 1.8.7.2, shall be subject to approval by the building official on a case-by-case basis. The applicant or their contractor shall provide the following information and receive approval from the building official prior to installation:
1. Complete the PEX Certification Form noting: proposed PEX product, name of installer, copy of product installer’s certification of training for the proposed PEX product and acceptance of fill and flush requirements of CPC 604.1.2.
2. The use of PEX-AL-PEX is not adopted.
CPC 609.1 Water supply, Installation: wherein it states: “…*Water service yard piping shall not be less than twelve (12) inches below the average local frost depth. The cover shall not be less than twelve (12) inches below finish grade.” *hereby shall be struck and replaced with:
1. The main water service line shall be installed to a minimum depth of 36 inches below grade.
2. Under floor domestic water and hydronic supply/return piping shall be insulated with appropriate pipe wrapping per manufacturer specifications and in accordance with the requirements of the California Energy Code.
3. For elevations above 6200', a water shut-off valve shall be installed inside of structure with a back drain and a main shut off valve placed outside of the structure with a gate valve.
CPC 901.1 Vents Required: is hereby added: The installation of air admittance valves shall require the prior approval of the building official.
CPC 906.1 Vent termination: is hereby added: A cricket or saddle-type diverter shall be installed on the ridge side of any chimney, flue or vent that is adjacent to, or penetrates the roof. Crickets or saddle coverings shall be a minimum 24 gauge sheet metal or the same material as the roof covering. Plumbing vents through the barge rafter shall be approved by the Building Official prior to installation, provided adequate clearances are maintained from windows, vents, combustion air and exhaust vents.
The 2010 California Mechanical Code, hereafter (CMC), is hereby amended as follows:
CMC 303.7 Liquefied Petroleum Gas Facilities: Liquefied petroleum gas-burning appliances shall not be installed in a pit, basement, or similar location where heavier-than-air gas might collect. Appliances so fueled shall not be installed in an above-grade floor space, garage or mechanical room unless such location is provided with an approved LPG detector/alarm and with an approved means for removal of unburned gas. A sounding device that is audible to sleeping areas or occupied area shall be installed. Detectors shall be installed in accordance with the approved manufacturer’s instructions and the detectors shall be listed with a recognized testing agency.
CMC 1316.6.6.4 Placing Appliances in Operation: is hereby amended with the addition of: For new installations of LP-Gas appliances in all occupancy groups and where a permit is required for alterations, repairs, or additions exceeding one thousand dollars ($1000), an LP-gas alarm shall be provided on every floor level and basement. LP-gas alarms shall receive their primary power from the building wiring and shall be equipped with a battery back-up. Wiring shall be permanent and without a disconnect switch other than as required for overcurrent protection.
The 2010 California Fire Code, hereafter (CFC), is hereby amended as follows:
CFC 105.1.1 Permits required: is hereby amended with the addition of CFC 105.1.1.1 Work commencing before permit issuance: Any person who commences any work on a fire protection, or fire alarm system before obtaining the necessary permits shall be subject to an investigation fee that shall be in addition to the required permit fees. A special investigation shall be made before a permit may be issued for such work.
CFC 113.2 Schedule of permit fees: is hereby amended as follows: A fee for each permit shall be paid as required, in accordance with the schedules as established by Alpine County resolution pertaining to Community Development permits and fees.
CFC 202 General Definitions: Fire Code Official: is hereby amended as follows: The fire chief or chief building official charged with the administration and enforcement of the code, or duly authorized representative.
CFC 903.4.1 Monitoring: is hereby amended as follows: Alarm, supervisory and trouble signals shall be distinctly different and shall be automatically transmitted to an approved U.L. listed central station and shall sound an audible signal at the protected premises.
CFC 903.3 Installation requirements: is hereby amended with the addition of CFC 903.7 Fire Control Room: An approved fire control room shall be provided for all buildings protected by an automatic fire extinguishing system. Said room shall contain all fire sprinkler main risers, system control valves, fire alarm control panels and other fire equipment required by the fire code official. Fire control rooms shall be located within the building at a location approved by the fire code official, and shall be provided with a means to access the room directly from the exterior or a corridor built with 1 hour fire resistive construction. Durable signage shall be provided on the exterior side of the access door to identify the fire control room.
Exception: 1 and 2 family dwellings protected by an NFPA 13D designed system.
CFC 903.3.1.2 NFPA 13R Sprinkler Systems: *is deleted.
CFC 3804.3.1 Location of LP-gas containers (Special hazards): is amended with the addition of CFC 3804.3.1.1: LP-gas containers (propane tanks) are required to be placed on a minimum 3 inch thick concrete or masonry foundation and anchored with seismic restraints or utility supplied saddles. For elevations above 6200 feet, LP-gas containers shall have an approved snow protective structure built over the container(s). Protective structures shall be designed to meet the design criteria requirements for the specific location including ignition resistant building materials as found in CBC chapter 7A. All regulators, meters and gas lines entering the building shall be substantially protected from snow and ice damage.
CFC chapter 47 Referenced Standards: is amended as follows:
All NFPA Standards shall be adopted except:
|
13E |
13R |
450 |
472 |
473 |
|
550 |
551 |
555 |
556 |
901 |
|
1000 |
1001 |
1002 |
1003 |
1005 |
|
1006 |
1021 |
1026 |
1031 |
1033 |
|
1035 |
1037 |
1041 |
1051 |
1061 |
|
1071 |
1201 |
1221 |
1250 |
1401 |
|
1402 |
1404 |
1405 |
1410 |
1451 |
|
1452 |
1500 |
1521 |
1561 |
1581 |
|
1582 |
1583 |
1584 |
1600 |
1620 |
|
1670 |
1710 |
1720 |
1800 |
1901 |
|
1906 |
1912 |
1925 |
1951 |
1971 |
|
1975 |
1981 |
1983 |
1991 |
1992 |
|
1994 |
1999 |
5000 |
(Ord. 696 § 3, 2010)
15.04.030 Special conditions.
See Alpine County Code Section 13.08.040, Building permit. The building official shall not issue a building permit for the construction of any new building or structure requiring the use of potable water and sewage in the county without the written approval of the county environmental health specialist or district having jurisdiction expressing that the water and sewage systems are approved as to their respective standards. (Ord. 696 § 4, 2010)
15.04.040 Violations.
It is unlawful for any persons, firm or corporation to erect, construct, alter, extend, repair, move, remove, demolish, connect electrical, fuel or gas services, or occupy any building, structure or equipment regulated by this code, or cause same to be done, in conflict with or in violation of any provisions of this code. The building official is authorized to serve a notice of violation or order to the person(s) responsible under the provisions of this code. Any person who violates the provisions of the notice or order shall be subject to penalties as prescribed by law. (Ord. 696 § 5, 2010)