IB Roof Systems has introduced thermoplastic polyolefin (TPO) membranes to its commercial roofing product line, expanding its single-ply offerings beyond PVC and liquid-applied systems. The membranes meet ASTM D6878 standards and are designed for large commercial roofing applications requiring durability, flexibility and consistent weldability.

The TPO membranes are available in smooth-back configurations in 60- and 80-mil thicknesses and fleece-back options in 115- and 135-mil. Color choices include white, tan and gray, with CRRC-rated options available to support energy efficiency and code compliance.

IB said the membranes are engineered for predictable installation and seam integrity, with reinforced construction and UV-resistant formulation for long-term weatherability. The TPO line integrates with the company’s existing system components, including insulation, coverboards, vapor barriers and accessories, and is supported by IB’s technical support and warranty programs.