vapor barrior under snap lock

Guest User
11/3/2013
Building a stand alone covered deck. Snap lock roof over purlins. What is best way to prevent dripping moisture?
Eric Novotny
An informed customer is the Best Customer!
11/4/2013
Insulation and proper moisture control. Easiest and most effective insulation is going to be SPF (Spray Polyurethane Foam). I still do not prefer spraying to the back side of the metal in this case. I would always want to see some sort of isolation layer like a rigid foam.

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