Polyglass U.S.A., Inc. > FAQs > Modified Bitumen Membranes

FAQ Category: Modified Bitumen Membranes

What kind of project support services do you offer?

At Polyglass, we back our product offerings with expert consulting, knowledgable technical support, and unmatched customer service throughout your project. Our expert support services include roof design analysis, pre-bid budget assistance, technical services, and progress inspections throughout your project. In addition, our website offers extensive product information and educational resources, and our Polyschool course offerings offer even more detailed instruction on the best ways to install and use Polyglass products.

Which modified bitumen system is best for my roof?

Polyglass offers an expansive product line designed to provide excellent coverage for virtually any challenge you may have with your roofing application. From our reflective “cool roof” Polyfresko products to the Velociflex technology of Polyfresko, to our Polar base and cap sheets specially formulated for cold-weather installation, we’ve got a product combination to suit your needs. For technical questions regarding which systems are best for your project, reach out to our team of experts.

What is ADESO?

ADESO is a revolutionary self-adhered technology offered by Polyglass on many of our APP and SBS membranes. Using a combination of patented features, ADESO technology enables the manufacture of dual-compound membranes with a true APP or SBS formulation on the top weathering side and a powerful self-adhered formulation on the bottom layer, providing superior adhesion without the need for additional adhesives.

How is modified bitumen installed?

Polyglass SBS and APP membranes are available in a variety of installation methods to best suit your application.

SBS installation methods:

  • ADESO® self-adhered
  • Heat welded or torch applied
  • Cold process applied
  • Hot asphalt applied
  • Mechanical attachment

APP installation methods:

  • ADESO® self-adhered
  • Heat welded or torch applied

Which is better — modified bitumen or single ply?

Unlike single ply membranes such as EDPM, TPO, and PVC, modified Bitumen multi-ply systems provide several layers of defense. When properly installed, modified bitumen membranes have a stable thickness throughout its life, while single-ply membranes have annual thickness loss due to weathering.