Section 2346 - Skirting Design and Construction(a) Where the space beneath an accessory structure is enclosed, there shall be provided a removable access panel opening a minimum of eighteen (18) inches by twenty-four (24) inches unobstructed by pipes, ducts, or other equipment that may impede access. The access panel shall not be fastened by any means requiring the use of a special tool or device to remove the panel.(b) Cross ventilation shall be provided by openings having a net area of not less than one and one-half (1 1/2) square feet for each twenty-five (25) linear feet of the accessory structure and including all skirted structures. The openings shall be provided on at least the two (2) opposite sides along the greatest length of the unit and shall be installed as close to all the corners as practicable.(c) When wood siding or equivalent home siding products are used as skirting material, the installation shall comply with the siding manufacturer installation instructions. Where siding manufacturer installation instructions are not available, the installation shall conform to the provisions of the California Residential Code. All wood products used in skirting construction located closer than six (6) inches to earth shall be treated wood or wood of natural resistance to decay. Where located on concrete slabs placed on earth, wood shall be treated wood or wood of natural resistance to decay.(d) When skirting is installed on a unit or accessory structure in a floodplain as designated by the local floodplain, management agency, the skirting shall be either: (1) a flexible material that will not impede the water flow, or(2) if constructed of rigid materials, have openings totaling one (1) square inch of opening for every one (1) square foot of enclosed area. The bottom of these openings shall not be more than one (1) foot above grade. Openings may be equipped with screens, louvers, valves, or other coverings or devices provided that they permit the automatic entry and exit of floodwaters.Cal. Code Regs. Tit. 25, § 2346
1. New section filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).
2. Amendment of subsections (b) and (c) and new subsections (d)-(d)(2) filed 2-18-2011; operative 2-18-2011 pursuant to Government Code section 11343.4 (Register 2011, No. 7). Note: Authority cited: Section 18865, Health and Safety Code. Reference: Section 18871.10, Health and Safety Code.
1. New section filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).
2. Amendment of subsections (b) and (c) and new subsections (d)-(d)(2) filed 2-18-2011; operative 2-18-2011 pursuant to Government Code section 11343.4 (Register 2011, No. 7).