Norfolk Silicone Roof Coating Contractor

That comes down to the dry film thickness, the prep, and how the roof is kept up. Manufacturers often rate silicone systems for 10 to 20 years by applied thickness, and ponding, foot traffic, and hail shorten it. When the film wears, clean silicone can take a fresh silicone coat rather than coming off.

Hail can dent the panels and, in a hard storm, cut the film at laps and screws. The flexible film usually bends with a dent rather than cracking. After a storm we walk the roof, find torn coating and opened laps, and patch those spots with matching silicone. A dent with no tear is not a leak.

Square footage, the thickness you want, and the prep. Silicone costs more per gallon than acrylic, and a thicker build for longer manufacturer coverage uses more of it. Rust primer, lap fabric, and screw replacement add labor. As a planning range, coating runs about $2.50 to $4 per square foot.

Three stand out. Silicone holds dirt, which dulls the white surface. It is slick when wet, so crews and inspectors take care walking it. Few coatings stick to it, so every recoat stays silicone. It also costs more than acrylic, and on flat or ponding roofs those trade-offs are usually worth it.

Silicone fits a low-slope roof that holds water after storms and needs a film that stays flexible in cold. Acrylic fits sloped steel that drains fast and costs less per gallon. We look at your drainage on the inspection and choose with you before pricing.