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Every business needs a roof over its operations. But what kind of roof is the question. While flat roofs were once the likely option for commercial, there is no simple answer in 2019.

A survey by the National Roofing Contractors Association in 2016 showed that Thermoplastic Polyolefin (TPO) is the low-slope market leader with 40% of the share of new construction and 30% of the reroofing market. TPO is a single-ply reflective roofing membrane made from polyprophylene and ethylene-propylene rubber polymerized together. It is installed in either a fully adhered or mechanically attached system that leaves the white membrane exposed.

EPDM is the second most popular system, the report continued, with 22% of the market for new construction and 26% of the reroofing market. The most commonly used polymer is EPDM or Ethylene Propylene Diene Monomer. EPDM is a durable rubber roofing solution and available in both black and white. Thermoset membranes are successful for use as roofing materials because of their proven ability to withstand the potentially damaging effects of sunlight and most common chemicals generally found on roofs. 

Mod Bit came in third at 12.4% of the market for new construction and 14% of the reroofing market, according to the survey. Mod Bit systems include factory-fabricated layers of asphalt that are “modified,” using a rubber or plastic ingredient for increased flexibility and combined with a reinforcement for added strength and stability. In modified bitumen, there are two primary modifiers used today: APP (atactic polypropylene) and SBS (styrene butadiene styrene). High performance modified bitumen roofing and waterproofing systems are quickly installed, easy to maintain and cost efficient.

If you’re a building owner, an architect or contractor, the decision is not only based on the slope of the roof, but the climate, architectural style, maintenance requirements, and budget. The very health of your building is dependent upon the roof. It’s a top-down thing.

Contact Arapahoe Roofing for an expert opinion about the next roof you install on your commercial property.