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Reseal a skylight or roof vent

by Tom Jones

Over the years, I'd read the warnings from others to check the caulking around roof attachments on your RV. Our coach was a little over 2 years old, so I wasn't too concerned about it. But, while on the roof of our coach, a friend and forum member pointed out that the caulk around our bathroom skylight was starting to crack.

I resigned myself to re-sealing all roof-mounted/caulked items, which essentially meant vents and skylights. The photos show how I resealed the skylight, but the same procedure can be used to reseal roof vents.

The old caulk was removed using a scraper and the residual was cleaned up with acetone.

The new caulk - Dicor self leveling caulk - was applied with a caulking gun.

I'd recently become a fan of Eternabond tape, originally mentioned in the forum some years ago by forum staffer Fred Thomas, so I ordered a roll from Best Materials. After waiting for the Dicor to cure, I covered it with 4" wide Eternabond, which should provide a seal that will last for years to come.