Retrofit Single-Ply Roof Systems over Metal Panel Roofs

What are current market practices, best practices and industry concerns for wind resistance?
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Live webinar airing on December 17, 2019 at 2:00 PM EST
Sponsored by GAF
Presented by James R. Kirby and Thomas J. Taylor

Learning Objectives:

  1. Review and classify current industry practices for retrofit single-ply roofs.
  2. Define the metal roofing industry’s concerns when recovering with single-ply membranes.
  3. Identify the wind uplift concerns of the existing metal roof when changing the uplift load path.
  4. Define fastener spacing guidelines based on calculated loads and pullout values for a typical reroofing scenario.

Credits:

1 AIA LU/HSW
1 IIBEC CEH
0.1 IACET CEU*

Roofs on metal buildings are frequently re-covered with single-ply roof systems. But what’s the right way to install them? This webinar will discuss current installation practices as well as concerns raised by the roofing industry. For example, is it appropriate to install fasteners into the metal panels? Are there deflection concerns for the existing structure because the drainage pattern is changed? Does the retrofit single-ply installation specification for fastener type, location and spacing take into account wind uplift? Not fully understanding these issues and appropriate solutions can put your building at risk. You will take away valuable information to mitigate risk and set up your next retrofit single-ply project for success!

Retrofit Single

Photo courtesy of GAF



kirby

James R. Kirby, AIA, is a GAF building and roofing science architect. Jim has a Masters of Architecture—Structures Option, and he is a licensed architect. He has over 25 years of experience in the roofing industry covering low-slope, steep-slope, metal, SPF, vegetative and rooftop photovoltaics. He understands the effects of heat, air and moisture on a roof system. Jim presents building and roofing science information to architects, consultants and building owners, and he writes articles and blogs for building owners and facility managers, and the roofing industry at-large. He is also a member of AIA, ASTM, ICC, MRCA, NRCA and IIBEC.

Nagra

Thomas J. Taylor is Building & Roofing Science Advisor for GAF. This position is focused on the relationships between individual roofing materials and the overall roof system and building envelope performance. Tom is a frequent presenter at both national and regional industry meetings. He has over 20 years’ experience in the building products industry, all working for manufacturing organizations in a variety of new product development roles. He received his PhD in chemistry and holds approximately 35 patents.

 

GAF More homes and businesses in the U.S. are protected by a GAF roof than by any other product. We are the leading roofing manufacturer in North America, with plants strategically located across the U.S. A member of the Standard Industries family of companies, GAF is part of the largest roofing and waterproofing business in the world.

 

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