Ok, so we are nearing the end of the design phase on our rowhouse addition and my architect and I have different opinions on what to do with the roof. You'll see from these plans, that it is a 2:12 slope shed roof attached to the existing home on two sides.
The architect has called for us to use a layer of water and ice shield (applied to the entire roof), followed by asphalt shingles. Under the method, we'd install soffit vents for intake and mushroof vent of some sort for exhaust.
I've been spending a lot of time on some of these forums and am pretty confident a flat roof membrane, like EPDM would work best given the very low slope. I've also heard that it is possible to "seal" the underside of the roof using spay foam, eliminating the need for ventilation.
So, what do you think? Which approach is best? Is there a method we're not thinking of? Which would be most economical? Most efficient?
Spray Poylurethane Foam roofing would be the best long term solution
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Hi, I have some question's , what direction is this roof or the back of your house facing? what is the climate like, where you live? Snow , rain, Wind?
What are the shingles on the rest of the House, and how old are they?