What's the Best Thing to Do With an Old Spray Foam Roof?

Quick Summary: If you have an older spray foam roof, it's possible it can be recoated with an elastomeric coating. Automatically assuming you need a complete tear-off can be a costly mistake.

Assess the Condition First

The first step with any aging spray foam roof is a professional inspection. A qualified contractor will assess the foam's condition, check for UV degradation, inspect the existing topcoat thickness, and determine whether the substrate is still structurally sound. Not all old foam roofs are in the same condition.

When Recoating Is the Right Answer

If the foam is in acceptable condition — meaning it hasn't degraded significantly and there are no major areas of exposed or compromised foam — a recoat is typically the best option. The process involves power washing, any necessary spot repairs, and applying a fresh topcoat to restore the warranty. This is far less expensive than a full tear-off.

When Tear-Off May Be Necessary

If the foam has been exposed to UV for an extended period without a topcoat, or if significant sections have deteriorated, a full tear-off may be the only viable option. The same applies if moisture has infiltrated the foam system and wet insulation is present beneath.

The Bottom Line

Don't assume the worst before getting an inspection. Many spray foam roofs that look rough on the surface are still candidates for restoration — saving building owners thousands compared to replacement. Contact West Roofing Systems for an honest assessment of your existing foam roof.