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Updated over 4 years ago on . Most recent reply
Commercial flat roof advice needed. Picture attached
Going through negotiations on a commercial office building. The agent said the roof needs replaced and my knowledge of commercial flat roofs is pretty minimal. I took some pics and measured it - its 4000 sq ft. Before I call around roofers I want to know what I am talking about. What type of material is on this roof? Its not the same stuff we use on single family flat roofs is it? What are options and approximate costs for replacement? Do they tear it all out or go over? Thank you!
Most Popular Reply
That is an EPDM roof. Whether or not you can recover the existing roof or have to tear it off is determined by how many layers are already there. Most states the limit is 2 layers.
Not sure of pricing in Ohio. Here in Maryland a 20 year TPO roof over the existing roof would run right around 20k for that roof. Tear off price is affected by how any layers but lets assume the roof has only 2 layers you are looking at between 35-40k.
I prefer TPO over EPDM. With a TPO roof your seams are welded. EPDM roofs the seams are glued. Both are 20 year roofs.