best type roof for flat building?
Time to get a new roof. I have a commercial bldg, about 7000 sf. It if stupidly flat. Of course, with flat roofs around here, there are low spots- that form puddles/pools. I heard that now the codes have been demanding roofers flatten out these low spots so water shes off much quicker (not sure how they accomplish that).
BUT, The roof that was put on in 96 is shot- lasted a dissapointing 16 years. Whats the best roof to put on there now? I heard tar and gravel is time tested. Others use overlapping membrane. (currently, I have multi layered/"feathered" fiberglass with hot tar in between layers. Sounds impressive, but didnt last for beans.
Alexander Pope: [a little knowledge can be a dangerous thing]