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Leaking Cement Flat Roof

4K views 1 reply 2 participants last post by  AaronB 
#1 ·
Okay --- I have a cement flat roof -- and I have new roofing system of a simple rubber membrane/tar paper, all my neighbors have replacement roofs much the same--- but they all leak. We are townhouses and our roofs are enclosed by brick walls on all 4 sides......

I am looking for a product that will be both a foam insulation (as we have NO insulation) and a "regrading" tool --- something that can give a "slant" to my flat roof and help water rush off to the gutter.

Suggestions? Much appreciated!!!
 
#2 ·
SPF can do all of this, but R value mmay be negated for the living space if you have a cold roof assembly.
 
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