How To Waterproof A Roof Valley

Waterproofing membranes ice water shield ice water shield was developed for northern climates that suffer from ice damming.

How to waterproof a roof valley.

Check the entire roof valley carefully to locate the source of these problems. 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. Step 2 remove the shingles.

Valleys are where 2 angles of a roof meet creating a v shape. 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. Closed valleys are where the shingles butt together on top of the metal flashing. 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.

Simply relying on felt to protect your valleys is setting yourself up for failure. This product is specifically designed to seal around fasteners and act as a. Roll it down and then secure it with roofing nails. In order to lay the flashing the shingles on the roof will have to be removed.

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. Snap two chalk lines from the ridge to the eaves 8 cm apart increasing in width by 1 cm per meter towards the eaves. Nail the shingles 5 cm back from the chalk line. This video shows the water proofing paper that we installed after re.

Trim the shingles to these lines and cut a 5 cm triangle off the top corner to direct the water into the valley. Sealing valleys on a roof roof rocket sealing valleys on a roof roof rocket. To waterproof it use roofing tar along the edges. Now roll out the roofing material and make it 18 inches wide from the center of the valley.