Modified bitumen roofing has progressed from an experimental concept to one of the most widely used commercial roofing systems in the industry during the last 50 years or more. It has been the roofing material of choice for millions of projects around the world because to its tensile strength, longevity, and relative ease of installation. Built-up roofing systems (BUR) have been employed on low-slope roofs for over 100 years, and modified bitumen is considered their evolutionary cousin. It's comprised of asphalt, polymerized rubber or plastic, and fiberglass to make a tough-yet-flexible waterproof membrane.Modified bitumen roofing is most commonly found on flat or low-slope business or residential roofs. These membranes can be installed as part of a two-layer system or a multi-ply system, depending on the kind and material.
FLAT ROOF COMPONENTS
GAF LIBERTY BASE SHEET
The Liberty SBS Self-Adhering Base/Ply Sheet is a self-adhering roofing membrane that is intended to be used with the Liberty SBS Self-Adhering Cap Sheet. It provides long-term protection for your property's low-slope sections. Liberty solutions may be used on primed plywood decks and a variety of other substrates without the use of torches, open flames, hot asphalt, or nasty solvent-based adhesives
GAF LIBERTY CAP SHEET
Liberty SBS Self-Adhering Cap Sheet is a long-lasting modified bitumen membrane that meets industry and regulatory requirements. The waterproofing membrane is supplemented with a polyester mat that has been covered with a polymer-modified asphalt. Liberty solutions may be used on primed plywood decks and a variety of other substrates without the use of torches, open flames, hot asphalt, or nasty solvent-based adhesives.
Taped Insulation is installed under the Cap and Base Sheet. It helps create a slight slope on the flat roof that allows water to flow off of it when it rains. This system prevents water from staying stagnated on top of the flat roof and helps extends the roof longetivity.