Minnesota Administrative Rules

1309.0318 SECTION R318, MOISTURE VAPOR RETARDERS.

IRC Section R318.1 is amended to read as follows:

R318.1 Vapor retarders. In all above grade framed walls, floors, and roof/ceilings comprising elements of the building thermal envelope, a vapor retarder shall be installed on the warm side of the insulation. Vapor retarders installed under a concrete floor slab shall comply with section R506.2.3.

Exception: In construction where moisture or freezing will not damage the materials.

Statutory Authority:

MS s 16B.59; 16B.61; 16B.64; 326B.101; 326B.106; 326B.13

History:

27 SR 1475; 32 SR 12; L 2007 c 140 art 4 s 61; art 13 s 4

Published Electronically:

February 23, 2009