Roof Insulation


GAF EnergyGuard (TM) Roof Insulation Products

“Economy and exceptional thermal performance for all types of roofing systems.”


Houston Roof Insulation / Fastening Systems

EnergyGuard(TM) Polyiso & Tapered Polyiso Insulation

  • Designed for use in practically any low-slope roofing application including BUR, mod bit, and single-ply systems.
  • High insulation value –– Superior “LTTR” value compared to any other FM Class I rated product of equivalent thickness at 6 per inch.
  • EnergyGuardTM roof insulation board is made of glass fiber-reinforced cellulosic felt facers bonded to a core of polyiso foam.
  • Manufactured with EPA-compliant blowing agents containing no CFCs or HCFCs; has zero ozone depletion potential (ODP) and virtually no global warming potential (GWP).
  • Available in a variety of thicknesses from .5” to 4.0” to best suit your needs.
  • Available in 4’x4’ and 4’x8’ boards • Tapered panels are also available in slopes of 1/16”, 3/16”, 1/8”, 3/8”, 1/4”, and 1/2”.

EnergyGuard (TM) Perlite Insulation & Tapered Perlite

  • Composed of expanded perlite particles, selected binders and cellulose fibers, which provide its insulating efficiency.
  • Treated surface helps assure proper adhesion to roof membranes.
  • Designed for use in BUR, mod bit, & some single-ply systems.
  • Available in 3⁄4”, 1”, 1.5”, and 2” thicknesses.
  • Tapered boards available to improve drainage.
  • Available in 1⁄2” recover boards for use over existing roofs.
  • Cant strips also available to provide a smooth transition from horizontal to vertical surfaces.

EnergyGuard (TM) Polyiso Composite Insulation

  • Polyiso Foam has excellent insulating qualities combined with strong surface characteristics of 1⁄2” high density fiberboard, or 1⁄2” perlite on 1 side and the other side is made with Glassfiber-Reinforced Cellulosic Felt Facers.
  • The Fiberboard, or Perlite side is able to receive Hot-Mopped Roof Membranes.


Have You Heard About Green Roofing?

Learn more about our Green Roofing Systems and how it helps conserve natural resources.