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Old 10-02-2010, 02:41 PM   #1
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vapor barrier on gutted brick house


We have gutted a fire damaged brick house, leaving only the brick veneer exterior walls. The roof, floors, rim joists, and stud walls are being replaced. The problem is, we cannot put exterior sheeting on the stud walls because we will not be able to attach the brick clips to the studs. We are thinking about using closed cell spray foam, about 1 inch thick, to the interior side of the brick, after the brick clips have been attached. There are some large gaps in the mortar on the interior side of the brick (which is normal) but could the foam expand between the bricks and cause joint separation? We also thought about using shotcrete or gunite first to fill the gaps in the mortar and then use spray foam over that for the vapor barrier and then fiberglass insulation (again because we cannot put the exterior sheeting on). We’re sure others have had to deal with this and would appreciate any suggestions. Thanks.

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Old 10-02-2010, 03:07 PM   #2
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vapor barrier on gutted brick house


Check over on the buildscience.com site. I think you'll be fine w/ foam and no visqueen vapor barrier. I suspect you'll be guided into using an airtight drywall approach. Forget the fiberglass; cotton, mineral wool, or cellulose.

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