Top five questions about ‘greening the roof’

This post is also available in: French

Dr. Jim Hoff currently serves as vice president of research for the Center for Environmental Innovation in Roofing in Washington, D.C., and as president of TEGNOS Research Inc., a consulting organization dedicated to expanding understanding of the building envelope. 

GreenRoof

Recently, Dr. Hoff responded to Roofing Contractor’s readers’ most common questions about environmentally friendly, green and sustainable roof systems.

Question 1: When I talk to building owners and architects who want a LEED building, the only thing they want to know about the roof is whether or not it’s white, because white roofs get a LEED credit. Isn’t this a very shortsighted way to design and spec a roof?

Dr. Hoff: Yes, it is very shortsighted; and I’ll be the first to admit that changing the narrow focus on white roofs supported by the LEED heat island credit is very difficult. Probably the best tool available to improve the discussion about roof surface color is the RoofPoint program developed by the Center for Environmental Innovation in Roofing. RoofPoint recognizes the “greenness” of roofs using twenty three different credits, and only one of these credits addresses roof surface color. And even the roof surface color credit in RoofPoint allows the use of darker roofs in the coldest climates and also provides for other cool roof alternatives such as ballast in all climate zones. It’s a great program to help educate building owners and help demonstrate that you can be a valuable expert on the best in sustainable roofing practices.

Read the full interview at Roofing Contractor.

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