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dan pruglo
Posted: May 21, 2011 06:44 PM
Rmax and cc foam
I have a customer with a flat roof 1000sqf none vented,
He has 2 layers of 2 1/2" rmax closed cell 4x8 sheet foam on top of roof deck. Each 2 1/2 layer has R-15. It has glass fiber/organic mat facers on both sides.

Inside he wants to put 2 1/2" same rmax foam between the rafters (he will cut them to fit between the rafters).
He wants me to spray cc against the rmax foam that he installed.
question is.? Will the cc foam or the rmax insulation condensate water?

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