Roof Valley Runs Into Wall Corner

As you install roof shingles on the second roof plane you allow them to lap over the valley on top of the first shingles.

Roof valley runs into wall corner.

Tracking down the leak is the hard part. Start from the very bottom and work your way up with putting the membrane to the roof at least 24 away from the wall and at least 8 up the wall. Long helps it to fold onto the roof sheathing. It is essential to only use whole not cut shingles during this step.

The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high. In the actual dead valley fold it in but do not make any cuts. Many roofers cut the shingles across because they say it s safer. Ground zero for roof rot is often where roofs meet walls.

How where do i find a diverter that s angled to fit into these valleys. So now we know the pitch of the hip rafter in relation to the main roof. Yes even flat roof to wall intersections are not being properly done. I fold a piece of metal flashing for the inside corner between the subfascia and the wall.

The roof leak repair is usually pretty easy. In summary during the installation of a closed cut valley you install the first roof plane s shingles into the valley. To calculate a valley roof. In this video i show you how i do the valleys on a shingle roof.

The intersecting roofs to the ridge of the major roof and a short valley rafter will run from the opposite inside corner of the intersecting roofs to a point on the long valley rafter that it inline with the ridge of the minor roof. Avoiding problems begins at the beginning with a gap. If you don t direct water from the roof into a gutter it can pour into the wall. A vertical cut about 2 in.

I then add a second piece of flexible flashing tape to cover the open corner of the metal flashing and i fold it down onto the subfascia. Fold around the codrners and overlap by at least 6 each side 12 total overlap. By the way the unit run for the shallower pitch roof will always be less than 17 inches while the unit run for the steeper pitch will always be greater than 17 inches. I have two places on my roof that need a rain diverter but they are both where water runs together from two sides of the roof into valleys and then off the roof just over doors.

If you have water stains that extend across ceilings or run down walls the cause is probably a leaky roof.