Section 322.34. Crawl spaces.

 

(1)   Frost protection. If the bottom of the crawl space serving as the dwelling foundation is less than 48 inches below adjacent grade, the foundation shall be frost protected in accordance with Table 322.31-1 for frost protected slabs.

(2)   Vapor retarder. Any exposed earth in crawl spaces shall be covered with a continuous vapor retarder.

(b) All decayable organic material, including topsoil, shall be removed from crawl space floors prior to placing the vapor retarder.

(c) All joints of the vapor retarder shall overlap by 6 inches and be sealed or taped.

(d) The edges of the vapor retarder shall extend at least 6 inches up the foundation wall and shall be attached and sealed to the foundation wall or insulation.

(3)   crawl spaces.

(a) Crawl space walls shall be insulated in accordance with Table 322.31-1.

(b) Crawl space wall insulation shall be permanently fastened to the wall and shall extend the entire height of the wall.

CR 08-043 : cr. Register March 2009 No. 639 , eff. 4-1-09; correction in (1), (3) (c), (4) (a), (c) made under s. 13.92 (4) (b) 7. , Stats., Register December 2011 No. 672 ; CR 15-041 : am. (2) (d) Register December 2015 No. 720 , eff. 1-1-16; CR 15-090 : r. (3), (4) (c), renum. (4) to (3) and am. Register May 2016 No. 725 , eff. 6-1-16 .