My condo was built in 1981 and needs a new roof. I live in Nevada where the tempature can have a range of 50 degrees and gets hot in the summer and some snow in winter.
My thoughts are seams are the achilles heal of a flat roof and I realise that the install is very important.
So far I have contacted 2 roofing companies. One specialises in flat roofs and sells the SPF Dow Corning system. I like everything I read about this roof. The 2nd company installs modified bitemum and EPDM roofs and also torchdown. These roofs all have seams which makes me just a little nervous.
I expect to pay about 10k for a 20 year roof, the size is 32X60ft.
Some questions I have are what kind of warranty should be offered by the roofer himself excluding the manufacturer warranty.
If I go with a SPF roof should a tear down be done, the present roof is a membrane with gravel and a large patch over the original.
Do any of these roofs handle expansion of the substructure better.
For the SPF would you insist on a hybrid poly coating.
Any opinions based on actual expience would be appreciated.