How accurate is this decision tree?

The diagnostic is built from the same intake protocol our GAF Master Elite inspectors use on 2,500+ commercial roof assessments. It produces a directional recommendation in under two minutes, but every restoration project still requires an on-site infrared moisture survey before a final scope is committed.

When is silicone roof restoration not the right choice?

Restoration is not appropriate when more than 50% of the insulation is wet, when the structural deck is widely compromised, or when the membrane has degraded to the point that bare insulation is exposed across most of the roof. In those cases, full tear-off and replacement is the responsible recommendation.

What does silicone restoration cost compared to replacement?

Silicone roof restoration typically runs $3.50 to $7.00 per square foot installed, vs. $8 to $18 per square foot for full replacement depending on system type and complexity (which excludes tear-off, dumpster, and operational disruption costs). For a detailed dollar estimate, use the ROI Calculator linked from the result page.

Can silicone be applied over an existing TPO, EPDM, or modified bitumen roof?

Yes. Silicone restoration systems are designed to be applied over almost every common commercial substrate — TPO, EPDM, modified bitumen, built-up roofing, metal, and spray polyurethane foam — provided the substrate is sound, dry, and properly prepared. Substrate-specific primers handle adhesion.

Certified RoofingResourcesRestoration vs. Replacement

Interactive Diagnostic · Eight Questions · Two Minutes

Restore or Replace?

Eight diagnostic questions, drawn from the same intake protocol our GAF Master Elite inspectors use on every commercial roof assessment. At the end you receive a directional recommendation, the three factors that drove it, and a defensible next step.

No email required · No commitment · Built from 2,500+ commercial roof assessments

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Question 1 of 8 — Roof Profile

How old is the existing roof?

The year of original installation, or — if the roof has already been replaced once — the year of that last replacement.

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