Commercial Roofing for Alvin, TX Buildings

Most commercial buildings have flat or low-slope roofs. Water drains slowly, so anything that blocks it, like a clogged drain or a sagging section, lets water sit. Standing water finds seams and small punctures that a pitched roof would shed. Our guide on flat roof drainage systems explains how drains, scuppers and tapered insulation work together.

Common materials in the market include single-ply membranes like TPO and EPDM, modified bitumen and metal. Each handles heat, foot traffic and hail differently. For a side-by-side, read TPO vs. EPDM roofing.

Age shows differently on a flat roof. Seams shrink, edge metal loosens and the surface chalks or cracks in the sun. Many of these changes start years before the first drip, so the best time to look is before the building has a leak to report.

NOAA's Storm Prediction Center logged 15 hail reports within 10 miles of Alvin from 2015 through 2024. Four reached 1.75 inches or more, and the largest was 2.75 inches on May 31, 2024. On a flat roof, hail can crack membranes, dent metal and crush the insulation board beneath, and the damage is hard to see from the deck.

All of Brazoria County is inside the Texas Windstorm Insurance Association catastrophe area. If the building carries TWIA coverage, roof work generally needs windstorm inspection and a WPI-8 certificate from the Texas Department of Insurance. Talk with your agent before the project is scheduled.