Salt-Air Fastener Corrosion & Premature Shingle Lifting
The Neighborhood Problem: Air moving off Galveston Bay and Clear Lake carries fine salt mist and industrial particulates. On roofs installed with cheap electro-galvanized nails, that moisture corrodes fastener heads and weakens nail shanks under the shingles. Over 8 to 10 years, the nails literally rot through, losing their grip on the wood decking. Even moderate 45-mph gusts lift entire shingle sections like carpet.
We refuse to cut corners on fasteners in coastal wind zones. During our targeted Roof Repair and replacements, we use only heavy-duty, hot-dipped galvanized or ring-shank roofing nails driven squarely into the deck using a strict 6-nail coastal fastening schedule. When installing new Asphalt Shingle Roofing, we specify wind-rated, Class H-modified shingles (rated up to 130 mph) that lock together with a heavy-duty sealant strip designed to stay anchored against Gulf squalls.
