Thermoplastic polyolefin, or TPO is the fastest-growing segment of the commercial roofing industry.   TPO is an excellent, yet cost-effective roof membrane suitable for all types commercial buildings with manufacturer warranties up to 30 years.  With its white reflective color, TPO membranes are ENERGY STAR-qualified and CRRC (Cool Roof Rating Council) certified and have been directly attributed to a reduction in a building’s energy consumption by greatly diminishing the cost of air conditioning.