Securing HVAC Equipment on Mod-Bit Roofs without Mechanical Fastening

By Dana Castle | November 2, 2020

Modified bitumen roofs continue to maintain a significant share of the domestic market.  Mod bit is often described as “rubberized” asphalt, meaning it consists of asphalt and a polystyrene or polypropylene polymer infused into a reinforcing fabric.  It is applied in 4’ squares as a two-ply system: first a base sheet, then a top sheet…

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