With its origins as a roofing contracting business, Polyglass® became a leading manufacturer of modified bitumen roofing membranes in Europe in the 1960s and introduced its products and technology to the United States in 1992. Since then, Polyglass has grown to be a leading innovator in the roofing industry. Polyglass is a manufacturer of  modified bitumen roofing and waterproofing membranes and roof coatings for low and steep slope applications.  Polyglass utilizes the most technologically advanced manufacturing processes in the industry with four state-of-the-art manufacturing facilities – three in the United States, and one in Italy which services all of Europe. Polyglass also has operations in Great Britain and Romania.


 As the industry leader in modified bitumen membrane roofing technology, Polyglass has developed a wide range of commercial and residential roofing products designed and customized for many different applications. Our membranes not only afford outstanding protection and roof life expectancy, but are also environmentally friendly, energy efficient, non-abrasive, UV-resistant, skid-resistant and even visually pleasing!  Polyglass’ APP (Atactic Polypropylene) modified asphalt roofing membranes are reinforced with polyester and/or fiberglass mat offering excellent tensile strength and dimensional stability. Polyglass APP membranes can be heat-welded or cold-applied and are meant to be applied directly over an acceptable substrate or as part of a multi-ply system.   Polyglass’ SBS (Styrene-Butadiene-Styrene) modified asphalt, roofing membranes are reinforced with polyester and/or fiberglass mat offering superior flexibility, excellent tensile strength and dimensional stability. Polyglass’ SBS modified bitumen membranes are meant to be part of a multi-ply roof system. 


Polyglass offers Polyschool Seminars for Professional Growth. This is an educational forum to teach roofing contractors more about what makes Polyglass products unique to the roofing industry. The one-and-a-half day session highlights best practices when installing Polyglass commercial and residential roofing products.

Polyschool session topics include:

  • Overview of the History of Polyglass and Modified Bitumen products
  • In-depth presentations of Polyglass roofing products
  • Hands-on Demonstrations of Self-Adhered membranes, Torch-Applied membranes, and Roof Cements & Coatings
  • An inclusive learning environment
  • Peer networking opportunity



SOPREMA was founded in 1908 as Charles Geisen, while seeking to develop a fully waterproof fabric which would also be flexible and easy to install, found the solution by soaking jute fabric in hot bitumen. The result gave a lightweight but strong screed which came to be known as “MAMMOUTH®“, 

Today, the company operates over 50 manufacturing plants and has a presence in 90 countries across the world. SOPREMA continues to operate with core values of integrity, respect, commitment to excellence, and a focus on sustainable product development to minimize their impact on the environment.



SOPREMA offers a vast array of roofing solutions allowing for choice and peace of mind in design and application. From the proven, redundant, durable protection of SBS-modified bitumen, to the multifunctional problem solving features of highly flexible PMMA/PMA liquid applied systems, to the aesthetic and functional options of single ply PVC, SOPREMA has the time tested solution. SOPREMA has been expertly investing in the roofing industry for over 100 years.



 SOPREMA offers a wide variety of education and training programs to assist their customers and partners by providing the knowledge needed to make educated decisions when selecting and installing building materials for roofing, waterproofing, wall systems and civil engineering projects.  From AIA courses eligible for continuing education units, to their specialized contractor training program, their experts are working to make you experts!

Training is offered at locations across the country – from design professionals’ offices, contractor or distributor yards as well as at our training centers.