Ballpark Cost to Restore TPO and EPDM With Silicone Coating

One of the most common questions we receive: what does it actually cost to restore a TPO or EPDM roof with a silicone coating system? Here's an honest ballpark range.

Typical Cost Range

Silicone coating restoration on TPO or EPDM roofs typically ranges from $2.00–$4.50 per square foot, depending on roof size, condition, required prep work, and coating thickness. For a 20,000 sq ft roof, that's roughly $40,000–$90,000. Compare that to full TPO replacement at $7–$12 per square foot, or $140,000–$240,000 for the same roof.

Factors That Affect Price

The main cost drivers are: amount of wet insulation that must be replaced, extent of seam and flashing repairs needed before coating, required coating thickness (more mils = longer warranty = higher cost), roof accessibility and complexity, and travel distance for the contractor.

Why Size Matters

Larger roofs typically have lower per-square-foot costs due to economies of scale in labor and material delivery. A 100,000 sq ft restoration will cost significantly less per square foot than a 5,000 sq ft restoration.

Getting an Accurate Quote

The only way to get an accurate price is a site inspection with core samples. Ballpark numbers give you a planning range, but actual costs depend on your specific roof's condition and requirements.