Installation Details · FAQ

Are there cases where overlay actually makes sense?

Two specific cases. First, when the roof is structurally compromised in ways that make tear-off risky — for example, on a home where the rafters are showing fatigue cracks and the existing shingles are providing some structural rigidity. Second, on a property the owner is selling within 6 to 18 months and the buyer agrees to the overlay in writing as part of the sale.

Trill has installed overlays in both situations, but documents the decision and the trade-offs explicitly. In the structural case the overlay is a 5- to 8-year solution buying time for a structural repair. In the resale case the overlay is a cost-defense tactic, not a long-term roof. Going in with eyes open is the difference between an overlay that solves a problem and one that creates a bigger one.