Roof Leak Where Siding Wall Meets Roof Line

Part of the flashing turns up on the wall and the other portion gets covered by the next row of shingles.

Roof leak where siding wall meets roof line.

Some roof leaks happen at step flashings. As each row of shingles is laid a step flashing is installed over the shingle next to the wall. The intersection between a roof and a sidewall can be a rot problem waiting to happen. Improper installation of flashing where roofing shingles meet vinyl siding.

Structural movement or damage shown in a more extreme case at above right can also allow significant leaks into the building. Installation gaps in siding of any type if not back flashed invite leaks into the wall above left. I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof. So let s look at the ten of the most common culprits in causing your roof to leak and what you can and should do about them other than recruiting a bucket brigade.

Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot. You find these flashings where a roof climbs alongside a vertical wall. It is then running between the sheathing and siding until it gets to the top of the window. See siding fiber cement gaps.

Part of the flashing turns up on the wall and the other portion gets covered by the next row of shingles. As each row of shingles is laid a step flashing is installed over the shingle next to the wall. Problem 2 water is entering the top of the window then running down the interior right side of the window frame. Roof leaks can ruin insulation become a breeding ground for black mold damage interior ceilings and walls and rot the wooden framing.

You find these flashings where a roof climbs alongside a vertical wall. When each row of shingles was installed a step flashing was put next to the wall over the shingle and then covered by the next shingle row. Someone at the build site used sealant on an area where the roof meets the side of the house in an attempt to fix the issue. Improper installation of flashing where roofing shingles meet vinyl siding.

At the point where a roof meets a vertical wall you will see step flashings. You should only be able to see a tiny bit of the flashings if they were installed correctly.