How To Waterproof A Roof Valley

Hi all we need to replace our clay tile valley and felt underneath.

How to waterproof a roof valley.

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. Step 2 remove the shingles. Now roll out the roofing material and make it 18 inches wide from the center of the valley. Flat roof requires maintenance for a small leak in the middle of ceiling.

Snap two chalk lines from the ridge to the eaves 8 cm apart increasing in width by 1 cm per meter towards the eaves. Trim the shingles to these lines and cut a 5 cm triangle off the top corner to direct the water into the 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. This product is specifically designed to seal around fasteners and act as a.

Roll it down and then secure it with roofing nails. To waterproof it use roofing tar along the edges. Waterproofing membranes ice water shield ice water shield was developed for northern climates that suffer from ice damming. In order to lay the flashing the shingles on the roof will have to be removed.

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. Should we replace the entire roof with new materials 9. Secure it with roofing nails.

Check the entire roof valley carefully to locate the source of these problems. Lay a shingle on the valley without fixing it and see how the rest of them should be installed. Replace clay tile valley with same or go for new lead valley. Advice of materials and flat roof windows too.

Soup to nuts riley shows the proper way of installing a valley on a roof. Nail the shingles 5 cm back from the chalk line.