The heat comes first and lasts longest. Months of intense summer sun and UV push membrane surface temperatures far past what the air thermometer reads, day after day. Asphalt-based systems dry and embrittle, plastics get brittle, and adhesives are stressed all season. Heat is the slow killer of a flat roof in this part of Harris County.
Then there is the wind. This stretch of the coast is squarely in hurricane and tropical storm territory, close enough to Galveston Bay and the open Gulf that wind uplift is a genuine design concern rather than an afterthought. On the wide, exposed warehouse roofs that line I-10 and the channel, uplift is what we worry about first. Edge metal, fastening patterns, and parapet detailing decide whether a roof stays down when a storm comes through. A membrane that is watertight but poorly secured at the perimeter will peel back in a strong blow no matter how new it is, and with the county handling permits, getting that detailing right is on us.
Hail is the other big-ticket threat. Severe spring storms roll across the Houston region with hail that bruises membranes, cracks aging built-up surfaces, and dents metal panels and rooftop units. Hail damage often hides for months before it surfaces as a leak, and a good share of the claims we work in Channelview trace back to a single hard storm that nobody connected to the slow drip that followed.