Roof Leak Dormer Valley

1 improperly installed or deteriorated roof to wall or roof to roof valley flashings at top back of dormer.

Roof leak dormer valley.

The reason why the roof valley is such a sensitive area has to do with all the rainwater and or melting snow that accumulates and flows through the valley on its way into the gutters. Water stains appearing on the ceiling or mold growing on rafters are sure signs the leak didn t just appear overnight. The way ir was installed the main roof panel just has a notch cut in it and the end of the w valley trim sticks down through the roof and is visinbel from the inside. Once the roof valley has begun to leak you will need to cover the valley with flashing in order to prevent a repeat of the problem.

Roof leaks are also very common in the winter when all the snow accumulating on a roof creates a potential for a roof leak to develop especially if a roof. 3 deteriorated caulk around window and sill. Don t go crazy with the water. In fact it s rare for leaks to develop in open areas of uninterrupted shingles even on older roofs.

Check the entire roof valley carefully to locate the source of these problems. I had a metal roof pbr galvalume panels installed on a house i m building and it leaks around the dormers where the valleys meet the main roof. A roof leak at the edge of a dormer can allow a lot of water to enter your home. Items that penetrate the roof are by far the most common source of leaks.

The first thing to look for is any roof penetrations. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off. Even though these were previously billed as solutions for the leak a new roof and new siding did not stop the leaking. Have a helper stationed in the attic with a.

Step 2 remove the shingles. Penetrations can include plumbing and roof vents chimneys dormers or anything else that projects through the roof. 4 roofing leak above dormer due to age deterioration or poor installation. Worn out flashing or missing sealant can also cause roof leaks around dormers.

Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. The heavy snows and ice of winter 2013 14 compounded the problem when ice damming on the roof backed up into the dormer and poured through to the foyer ceiling creating the situation shown above. Dormer leaks can be caused from a number of issues. If you don t want to wait for rain to look for the leak try bringing the garden hose up on the roof.

A leak in a roof at the dormer can cause extensive damage and expensive repairs. Run the water over the place where you think the leak might be located. Rotten or missing trim or siding can allow water to leak behind flashing and into your roof. In order to lay the flashing the shingles on the roof will have to be removed.