Performance Analysis of Aged TPO Membranes  

Helene Hardy Pierce has spent over 37 years in the roofing industry and has been very active in many of the industry’s organizations. She received the ASTM Award of Merit and title of Fellow from ASTM Committee D08 on Roofing, Waterproofing and Bituminous Materials in 1998, the James Q. McCawley award from the Midwest Roofing Contractors Association in 1999 for contributions to the roofing industry, and the title of Fellow of the Institute from the Roof Consultants Institute in 2005. She served on the Board of Directors for ASTM from 1999-2002 and then on ASTM’s Executive Board as Chairman of the Finance and Audit Committee in 2003.

Jennifer Keegan, AIA, is the Director of Building & Roofing Science for GAF, focusing on overall roof system design and performance. She has over 20 years of experience as a building enclosure consultant specializing in assessment, design and remediation of building enclosure systems. Jennifer provides technical leadership within the industry as the Chair of the ASTM D08.22 Roofing and Waterproofing Subcommittee; and as an advocate for women within the industry as the educational chair for National Women in Roofing and a board member of Women in Construction.