Insulation, Radiant and Vapor Barriers - bead board on back of siding
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07-24-01, 06:09 AM
I have bead board (expanded styrene)on the back of my masonite siding. The bead board is 1/2 - 3/4" thick. Can you tell me what the R factor is in just the bead board? I am having the siding removed and replaced with Vinyl and wonder if I will loose R factor if I do not add additional insulation. Thank you