Bat Proofing a Riverview Home, and What a Warranty Covers
Proofing before there is a problem
Proofing is the same work as exclusion with the colony left out of it. The envelope gets surveyed, the openings that would be used get closed, and the vulnerable details get screened or fitted with closures. On a Riverview house that means tile course ends, gable and ridge venting, and the junction where a lanai roof meets the main plane.
It is worth doing when a neighboring roof has just been cleared, since the animals evicted from it are still foraging the same corridor and has the buildings nearby to move to. It is also worth doing at the point a roof is being replaced anyway, because the tile is already off and the access is already paid for.
What a warranty should say
A warranty on this kind of work should name the openings it covers, say how long it runs, and say plainly what voids it. Sealing that was refused at the time, a roof replaced by someone else afterwards, and storm damage are the ordinary exclusions, and a document that avoids listing any of them is not telling you much.
Ask specifically whether it covers reentry at a treated opening or reentry anywhere on the building, because those are very different promises. On a house where only part of the envelope was authorized for sealing, no honest warranty can cover the parts that were left open.