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Thermoplastic membrane designs can be
categorized as a fully adhered, mechanically fastened, loose-laid
ballasted, non-penetrating induction fastening and protected
membrane roofing systems.
A vegetated roof design (green roof) is defined
as a roof membrane system with a top layer of living plants in an
engineered soil blend (growth medium). System components include a
membrane protection layer, drainage layer, filter layer and a root
Asphalt shingle application directly over rigid
insulation is not permitted.
Asphalt shingle application directly over
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