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Tell us the roof size and condition. We will connect you with a certified applicator.
A spray polyurethane foam roof is only as long-lived as the coating that protects the foam. Embedding roofing granules in the final coat adds a mineral armor layer on top of that coating. It is a common upgrade in hail country, on roofs with heavy foot traffic, and where birds peck at foam. It also has costs: weight, lower reflectivity on some roofs and more work to recoat later. Here is how to decide.
Spray foam roof granules are mineral or ceramic-coated roofing granules broadcast into the wet final coat of an SPF roof coating. They improve UV, hail, puncture and foot-traffic resistance and can extend the time between recoats. The trade-offs are added weight and cost, a rougher surface that holds dirt, possible loss of reflectivity compared with a smooth white coating, and more prep when the roof is recoated. They are worth it on roofs that face hail, traffic or birds.
Granules shade the elastomeric coating so it erodes more slowly.
The mineral layer spreads impact and resists punctures from hail, dropped tools and debris.
A granulated surface discourages birds from pecking foam and holds up under foot traffic.
Apply SPF to the specified thickness and slope.
Apply the elastomeric base coat the same day the foam is sprayed when possible.
Apply the topcoat at full specified thickness.
While the topcoat is wet, broadcast granules evenly at the rate the coating maker specifies.
After cure, sweep or blow off loose granules.
Check for bare spots and recoat as needed.
Roofs in areas with frequent hail.
Rooftop equipment and frequent service visits.
Roofs where birds peck exposed foam.
Use white or reflective granules, or keep a smooth white coating if reflectivity is the priority.
Related: spray foam roofing, spray foam roofing cost and polyurethane roof coating.
A certified ArmorThane applicator can spray, coat and granulate your foam roof, or recoat an existing one.
Contractors: become an ArmorThane applicator
To add UV, hail, puncture and foot-traffic protection to the coating that protects the foam, and to discourage birds.
They can extend coating life by shielding it from UV and impact, but only when the coating underneath is applied at full thickness.
Standard colored granules can lower reflectivity compared with a smooth white coating. White or reflective granules reduce that effect.
They are broadcast evenly into the final coating while it is still wet, then loose granules are removed after cure.
Yes. Loose granules are removed, the surface is cleaned and primed as needed, and a new coating is applied.
Building owners get a certified ArmorThane applicator for spray foam roofing. Contractors can add foam roofing with our equipment and training, with no franchise fee and no royalties.
ArmorThane has built a strong reputation over the past 30 years for producing high-quality, durable protective coatings.
Tel: 417.831.5090
moreinfo@armorthane.com
We want to help you find the best ArmorThane applicator for your protective coating project. Please either fill out the request form below or call us toll free at 417-831-5090, any time Monday-Friday, 8:00 a.m. to 5:00 p.m. Central Standard Time.
Connect with an authorized ArmorThane professional to get a long-lasting, seamless protective coating for your RV. Submit the form below or call us directly at 417-831-5090 (Monday–Friday, 8:00 AM – 5:00 PM CST).
