1. (a) From the exterior of the MH-unit, measure the total length of the exposed side wall in feet and in fractions of feet. Then measure the height of the exposed side wall in feet and fractions of feet, measuring from the point of connection of the side wall with the roof to the bottom of the sidewall, excluding any skirting installed at the site. Multiply the measurement of the length of the side wall by the measurement of the height of the side wall to obtain the exposed square footage of the side wall.
2. (b) From the exterior of the MH-unit, measure the total length of the exposed roof in feet and fractions of feet. Then measure the height of the exposed roof in feet and fractions of feet, measuring vertically from the point of connection with the side wall to the peak of the roof. Multiply the measurement of the length of the roof by the measurement of the height of the roof to obtain the exposed square footage of the roof. Divide the square footage by two, in order to compensate for the reduced wind load against a pitched roof.
3. (c) Add the square footage obtained in the calculation described in subsection (a) to the square footage obtained in the calculation described in subsection (b) to obtain the total square footage of the exterior side of the MH-unit exposed to wind load.

4. (d) Multiply the square footage obtained in the calculation described in subsection (c) by either the design wind load of the MH-unit or by fifteen (15) psf, whichever is greater, to obtain the wind load. The design wind load of the MH-unit is provided on the data plate permanently affixed to the MH-unit.

   EXAMPLE: The side wall of the MH-unit measures sixty-two and one-half feet (62 ½ ′) in length and ten feet (10′) in height. The roof of the MH-unit measures sixty-three and one-half feet (62 ½ ′) in length and four and one-third feet (4 ⅓ ′) in height. These measurements result in a calculated wind load of 11,437 pounds using the above-described method.

5. (a) 62.5 x 10 = 625 square feet
6. (b) 63.5 x 4.33 = 274.96/2 = 137.48 square feet
7. (c) 625 + 137.48 = 762.48 square feet
8. (d) 762.48 x 15 = 11,437.2 or a 11,437 pound wind load.

Wind load is calculated as follows:

Note: Authority cited: Sections 18300, 18613 and 18613.4, Health and Safety Code. Reference: Section 18613.4, Health and Safety Code.

History

1. Renumbering of former section 1336 to section 1335 and new section filed 9-8-94 as an emergency; operative 9-19-94 (Register 94, No. 36). A Certificate of Compliance must be transmitted to OAL by 1-17-95 or emergency language will be repealed by operation of law on the following day.

2. Renumbering of former section 1336 to section 1335 and new section refiled 1-18-95 as an emergency; operative 1-17-95 (Register 95, No. 3). A Certificate of Compliance must be transmitted to OAL by 5-17-95 or emergency language will be repealed by operation of law on the following day.

3. Certificate of Compliance as to 1-18-95 order transmitted to OAL 3-31-95 and filed 5-12-95 (Register 95, No. 19).

4. Amendment of section and Note filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).