TPO (Thermoplastic Polyolefin) is a single-ply roofing membrane made from a blend of polypropylene and ethylene-propylene rubber, reinforced with polyester or fiberglass scrim for tensile strength. It is chlorine-free, 100% recyclable, and available in thicknesses of 45 mil, 60 mil, and 90 mil.

TPO is a white thermoplastic membrane that reflects solar heat; EPDM is a black synthetic rubber membrane that absorbs it. TPO seams are heat-welded (stronger); EPDM seams use adhesive tape. TPO is generally better for energy efficiency in warm climates; EPDM may be slightly more economical in cold climates where reflectivity matters less.

45 mil is standard for most low-traffic commercial applications. 60 mil is recommended for roofs with moderate foot traffic, rooftop equipment access, or hail exposure. 90 mil is specified for high-traffic roofs, severe hail zones, and premium long-term performance. Apex recommends 60 mil as a baseline for most industrial facilities.

Commercial TPO roofing typically costs $5.00–$12.00 per square foot installed, depending on roof size, membrane thickness, attachment method, geographic location, and project complexity. Larger roofs benefit from lower per-square-foot pricing. Fully adhered systems cost more than mechanically fastened; ballasted is typically the most economical.

Yes. White TPO membranes meet Energy Star and Cool Roof Rating Council (CRRC)standards for solar reflectance (≥ 0.70) and thermal emittance (≥ 0.75), qualifying them as "cool roofs." This makes them eligible for utility rebates, reduced cooling costs, and LEED v4 certification credits.

In many cases, yes. TPO can be installed as a recover over an existing single-ply or modified bitumen roof if the substrate is structurally sound and dry. A core sample inspection by our team determines if a recover is appropriate or if a full tear-off is required. Recovering an existing roof saves tear-off and disposal costs.