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Feature from Environmental Building News
October 1, 1998
Low-Slope Roofing:
Prospects Looking Up
From an environmental standpoint, the low-slope roofing on commercial and industrial buildings is a big problem. (“Low-slope” roofing is often incorrectly called
flat roofing—it nearly always has a slight pitch). For starters, there is a lot of it. No one in the industry seems to know how much low-slope roofing exists in the United States, but back-of-the-envelope calculations by
EBN indicate that the nation’s 4.8 million
commercial buildings (not including industrial or agricultural buildings) have on the order of 1,400 square miles (3,600 km2) of roofing (mostly low-slope), an area larger than the state of Rhode Island. In the U.S., we spend $13 billion dollars a year on commercial roofing (1996 data), 75% of that on reroofing and 25% on new construction....
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