Lap sealant is often used when installing solar on an RV roof. The sealant is designed to there to help prevent water from entering your RV.
![Lap sealant used on RV roof.](https://rv.solar/wp-content/uploads/2020/01/lap-sealant-1024x576.jpg)
Lap sealant is often used when installing solar on an RV roof. The sealant is designed to there to help prevent water from entering your RV.