Roofs we coat
We coat commercial and residential roofs, including:
- Metal roofs: standing seam, ribbed panel, barns and pole buildings
- Flat and low-slope roofs: modified bitumen, built-up, EPDM, TPO and spray foam
- Residential porch roofs and flat sections
- Mobile homes
Acrylic or silicone
We use acrylic on roofs people can see, because it doesn't show dirt and stains as much. Silicone turns yellow over time and doesn't look as good, so we use it on low-pitch roofs where ponding water is the problem.
American WeatherStar's own system data:
- Met-A-Gard+ is built on their High-Tensile Acrylic 211.
- Met-A-Sil uses Silicone 410 or High-Solids Silicone 412 for both the base coat and the top coat.
- Ure-A-Sil uses a urethane base coat and a silicone top coat, made for flat roofs that hold ponding water.
We fix the roof before we coat it
A coating only works on a sound roof. Loose or missing fasteners, open seams and wet insulation all get fixed before any coating goes on. American WeatherStar's Met-A-Sil specification then calls for a pressure wash at 3,000 to 4,000 psi, Red Oxide Rust Prime 912 where there is rust, and a thick mastic over the seams and flashing before the base and top coats.
How long a coating job takes
Small residential jobs and small commercial buildings usually take 3 to 4 days. A very large commercial roof can take as long as a month.
Warranties
Every coating we install comes with a 5-year Precision Exteriors guarantee. As an American WeatherStar Approved Contractor, we can also offer American WeatherStar's warranties. American WeatherStar lists Met-A-Gard at 10 years and Met-A-Gard+ at 12 or 15 years. Met-A-Sil on a metal roof can carry 12, 15 or 20 years, depending on how thick the coating goes on (20, 25 or 30 dry mils).
Coating or painting a metal roof
We also paint metal roofs, using Sherwin-Williams latex DTM (direct-to-metal) paint. The difference matters: a coating weatherproofs the roof and can stop leaks. Paint does not guarantee that leaks will stop.
When we recommend a new roof instead
When a roof has a lot of water damage and can't be coated, we replace it. For businesses, see our commercial roofing services.
Commercial work around your schedule
We normally work regular business hours. When a business needs it, we schedule coating work on evenings or weekends, so your day-to-day operation isn't interrupted.
