When it’s applied correctly and recoated on schedule, a spray foam roof lasts 20 to 50 years. Plan to add a fresh topcoat every 10 to 15 years to prevent UV damage and keep the surface watertight. Foam density, layer thickness, and basic upkeep—think annual inspections and quick repairs—make the difference between a roof that barely hits 20 years and one that tops 50.
Yes, you can install solar panels on a spray foam roof. A spray foam roof pairs well with rooftop solar because the lightweight foam adds minimal structural load and its bright, reflective surface helps panels run a little cooler and more efficiently. Your roofer can embed mounting hardware directly into the cured foam, creating a leak‑free seal around every bracket. Just make sure a roofing and solar team coordinates the installation so the warranty on both systems stays intact.
Yes, you can walk on a cured foam roof; its compressive strength is rated for roughly 50 to 60 pounds per square inch. That said, the coating gets slick when wet, and sharp objects can dig into the surface. Wear soft‑soled, non‑slip shoes, avoid dragging tools, and use proper fall protection whenever you step onto the roof for any maintenance or inspection work.