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central Indiana. so we get real seasons here. I live in the woods, so I am concerned about penetration from falling debris off trees. ive been getting estimates from commercial roofers. the theory behind spf seems cool, wasn't sure if there were any caveats. I do like the "cool" roof that the TPO (single ply) and the SPF provide, though. also like the insulation properties of SPF.
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-mike
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