Exterior Insulation with recycled polyiso?
I'm considering the ins and outs of using recycled polyiso for some or all of the 4 inches of exterior insulation on a residence in western MA. The recycled polyiso is roofing insulation with a felt or paper facing. I'd appreciate thoughts on taping the seams and holes (from prior mounting); that is, how important is this if I place the air barrier at the sheathing (with house wrap between the sheathing and foam board). The foam will be attached with 1x3 strapping (rain screen) and long screws followed by cladding attached to the strapping. Any thoughts, cautions, experiences etc. are welcomed.
Posted Jun 13, 2011 2:22 PM ET
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