Insulation & vapor barrier questions-help!


Old 12-18-00, 01:32 PM
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Hi we have newly built cabin in NW California that we are ready to insulate. The exterior is hardiplank,housewrap,and plywood, wood stove heat and gable end vents. My question is do we put a vapor barrier over the wall & attic floor insulation? I am very confused as to whether this is needed or not, before the sheetrock goes in? Please respond.
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Old 12-18-00, 10:20 PM
Join Date: Mar 2000
Location: Arlington, WA
Posts: 9,238
Use kraft faced fiberglass in the walls. The size of studs will determine the proper "R" value. (2X4's get R-13; 2X6's get R-19) The kraft paper is the vapor barrier and goes to the living space side. For the ceiling, either use kraft faced fiberglass (R-19 is the minimum, but I would go to R-38), or have cellulose blown in AFTER the ceiling is 'rocked.

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