Free tool
Roof coating material calculator.
Estimate how many gallons of silicone, acrylic, or urethane coating your commercial roof needs — pails, drums, and primer included.
Roof
Coating
Rust primer on rusty areas; the rate follows the manufacturer spec when one is loaded.
Pro inputs 🔒 Verified & Premium
Estimated top coat needed—
— · —
Estimates use typical application rates. Actual requirements depend on the manufacturer’s specification, substrate condition, and warranty term — always confirm with the system spec sheet or a certified contractor.
🧰 This calculator is just the start.
Verified members unlock custom rates, film build targets and private pricing; Premium adds manufacturer warranty systems and the seam & fastener takeoff.
✓Typical application rates by chemistry
✓Waste and texture allowances built in
✓Primer estimating included
✓Pail and drum counts for ordering
✓Free — no signup required
✓Verified contractors for exact specs
Numbers look big?
Coating still costs a fraction of replacement. Get a real quote from a verified contractor and compare for yourself.