Modified bitumen can be installed in cold temperatures with certain considerations and precautions. For best results, choose roofing products that are predicted for cold-weather installation. For example, Polyglass’ low-temperature Polar cap and base membranes are specially designed for installation in freezing temperatures.
FAQ Category: Modified Bitumen
What is cold-applied roofing?
Cold-applied roofing refers to roof membranes that are attached with a cold-process (water or solvent-based) adhesive rather than by heat welding.
What are the benefits of self-adhered membranes?
As previously mentioned, self-adhered modified bitumen is much easier to install since the adhesive layer is already applied. It also eliminates the fire risks associated with torch welding.
What are the downsides of modified bitumen roofing?
Modified bitumen requires a bit of skill to install, and it presents a potential fire hazard when heat-welded. Self-adhering modified bitumen membranes solve this problem — not only do they save contractors time and labor, but they also do not require a torch for installation.
What does SBS stand for?
SBS stands for styrene-butadiene-styrene, a form of synthetic rubber used in modified bitumen.
What does APP stand for?
APP stands for atactic polypropylene, a thermoplastic material used in modified bitumen.