How To Waterproof A Roof Valley

This video shows the water proofing paper that we installed after re.

How to waterproof a roof valley.

Hazlett s process involves using specialized tools such as a utility knife fitted with a hook blade a roofer s pry bar and a metal seamer. Secure it with roofing nails. Now roll out the roofing material and make it 18 inches wide from the center of the valley. Nail the shingles 5 cm back from the chalk line.

Sealing valleys on a roof roof rocket sealing valleys on a roof roof rocket. Step 2 remove the shingles. Snap two chalk lines from the ridge to the eaves 8 cm apart increasing in width by 1 cm per meter towards the eaves. How to install roofing paper in a valley section and install the valley flashing on top.

Closed valleys are where the shingles butt together on top of the metal flashing. When you discover a leak coming from your valley there are a few ways you can make the roof repairs. 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. His technique begins with the careful removal of old shingle the placement of a waterproof membrane and the installation of valley flashing followed by the replacement of the roof shingles.

In order to lay the flashing the shingles on the roof will have to be removed. Valleys are where 2 angles of a roof meet creating a v shape. Waterproofing membranes ice water shield ice water shield was developed for northern climates that suffer from ice damming. Simply relying on felt to protect your valleys is setting yourself up for failure.

For more information on roofing felt read how important is roofing felt as you can easily see if the shingles fail and allow water in felt is incapable of redirecting the water away from the home. Roll it down and then secure it with roofing nails. To waterproof it use roofing tar along the edges. Lay a shingle on the valley without fixing it and see how the rest of them should be installed.