Section 4363 - Floor Construction(a) Wood floors or subfloors in kitchens, laundry rooms, water heater compartments and any other interior areas subject to excessive moisture shall be made impervious to moisture by sealing with a listed and tested water resistant material, or by applying an overlay of approved nonabsorbent material applied with a listed and tested water resistant adhesive.(b) Floors under heating appliances shall not be covered with flammable materials such as carpeting.(c) Carpet and carpet pads shall not be installed in concealed spaces subject to excessive moisture such as under plumbing fixtures. Carpet and/or carpet pads shall not be installed beneath the bottom plate of shear or bearing walls.Cal. Code Regs. Tit. 25, § 4363
1. Amendment filed 9-7-73; effective thirtieth day thereafter (Register 73, No. 36).
2. Amendment filed 7-25-75; designated effective 9-1-75 (Register 75, No. 30).
3. Amendment filed 12-7-79; effective thirtieth day thereafter (Register 79, No. 49).
4. Amendment of section and NOTE filed 9-19-2011; operative 10-19-2011 (Register 2011, No. 38). Note: Authority cited: Section 18015, Health and Safety Code. Reference: Section 18028, Health and Safety Code.
1. Amendment filed 9-7-73; effective thirtieth day thereafter (Register 73, No. 36).
2. Amendment filed 7-25-75; designated effective 9-1-75 (Register 75, No. 30).
3. Amendment filed 12-7-79; effective thirtieth day thereafter (Register 79, No. 49).
4. Amendment of section and Note filed 9-19-2011; operative 10-19-2011 (Register 2011, No. 38).