SBS Modified Bitumen Roofing Systems are popular choices for low-slope commercial, industrial and institutional buildings when an asphalt system is desired. In addition to providing beauty, affordability and reliability, these systems are trusted to perform exceptionally well against extreme weather conditions. One beneficial aspect is that they can be applied using a variety of different methods, including cold adhesives, torch, self-adhered or hot asphalt, to meet any individual low slope roofing needs. Today, cold adhesive applications are as common in the low slope roofing market as hot asphalt. Cold adhesives, along with flashing cements, plastic cements, sealants and primers, are all asphalt-based products and are an important component of modern asphalt-based roof membrane systems. Cold adhesives are generally composed of bitumen, solvent, fibers, fillers and stabilizers; some may also contain rubber polymers such as SBS. As the solvent evaporates from the adhesive, the remaining components bond to the modified bitumen surface of the membrane by a type of solvent weld. Cold Adhesive Application Benefits For situations in which solvent-based adhesives cannot be utilized, there is a relatively new class of cold adhesives with high solids content that provides options for ultra-low VOCs. Because of the low solvent content, there is virtually no odor to these adhesives, thus they may be installed over occupied buildings and require little to no special handling precautions. These environmentally friendly materials not only act as an adhesive, but upon curing they add an additional elastomeric, polymer-modified, water-resistant layer between the modified bitumen sheet materials and the substrate. 1. Roof membranes may be applied with fewer restrictions Occupied buildings such as schools, hospitals, and offices may be reroofed with the use of low odor and ultra-low VOC cold adhesives.All roof membrane components are in small enough packages that they may be transported by elevator. Buildings with limited rooftop access can be roofed with high performance, redundant SBS-modified membrane systems without the need for cranes or other heavy equipment. 2. Contractors can save costs. No open flames and no hot kettles can improve working conditions for the crews and potentially lower costs. Source:https://asphaltroofing.org/cold-adhesive-sbs-modified-bitumen-roofing-applications