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FLAT Roof Repair Services! Want a Free Quotation?

Flat Roofing calgary

Styrene Butadiene Styrene also known as SBS is an elastomeric additive to asphalt that when cooled exhibits rubber.  It is a manufactured roofing membrane with waterproofing, UV resistance and long-term durability.  It is generally 2-ply system, it’s comprised of 2 layers of membrane torched to each other using hot asphalt or propane torch. The top layer is “Cap sheet”, it has small rock granules embedded in the membrane to provide UV protection. SBS system has different application methods depending on client’s need and wants.



EPDM is known as Ethylene Propylene Diene Monomer is synthetic rubber roofing membrane that is industry preferred in commercial roofing. It is durable for harsh Canadian weather and mostly used in low slope building. Seams are sealed with liquid adhesive or specifically formulated tape so its installer-friendly.

EPDM is available in 4 different membranes:

    1. –AFR (Fire retardant)
    1. – FRM (Protected with tough polyester fabric)
    1. – Flexwhite (White film over EPDM)
    1. – EPDM (Rubber membrane)


Thermoplastic Polyolefin (TPO) is a flame retardant and UV resistance membrane, which is cost-effective. It has exceptional seam strength as a specialized hot air welder welds it with hot air. This type of membrane can be installed over existing BUR or metal roof system.