Product Review

Membrane or Metal? Choices in Low-Slope Roofing

EBN Oct. 2011). With about 22% of low-slope commercial roofing projects using metal systems, according to Scott Kriner, technical director of the Metal Construction Association, we wanted to see how metal compares. As with single-ply membranes, there are toxicity concerns around some of the materials involved, particularly coatings. However, on most measures, metal roofing holds its own.

While standing-seam metal roofs installed on steep slopes snap together and allow any water that gets under the metal to be shed by an underlayer, low-slope standing-seam roofs (also referred to as low-slope SSR) use hydrostatic joinery, mechanically crimping the edges into interlocking seams filled with waterproofing sealant.

Published August 27, 2012

Weaver, E. (2012, August 27). Membrane or Metal? Choices in Low-Slope Roofing. Retrieved from