An SBS Roofing System shields flat and low-slope commercial roofs with rubber-modified bitumen, an elastic membrane that flexes through Alberta’s temperature swings without cracking. Markit Roofing layers it in bonded plies for puncture resistance and lasting waterproofing.
SBS, short for styrene-butadiene-styrene, is a modified bitumen roofing system that adds synthetic rubber to traditional asphalt. The result is a membrane that behaves more like rubber than tar, stretching, recovering, and absorbing building movement rather than splitting under stress. We build SBS roofs with two or three bonded plies, so even if one layer is compromised, the system below keeps water out. For Calgary and Edmonton properties that face freeze-thaw cycles and heavy snow loads, that elasticity is a genuine advantage.
From the first site visit to the final flood test, our crews handle SBS work with the detailing it demands, relaxing the sheets, bonding the base plies, and finishing with a granulated cap that shrugs off UV. New build, re-roof, or repair, we focus on seams and flashings that hold, because that is where flat roofs usually fail.
