Repair Leaking Lead Valley Roof

Most commonly this is the technique that is used to fix a leaking bay roof window or flat lead roof but it can also be used in almost all leaks where a split or hole in the lead is the culprit.

Repair leaking lead valley roof.

For example soak the downhill side of a chimney first then each side then the top on both sides. A lead valley is a particularly difficult item to dispose of as lead is toxic and so a repair may involve simply patching up your lead roofing. Seal the seam between the cap and step flashing with urethane roofing cement or silicone caulking compound as shown at right. Start low soaking the area just above where the leak appears in the house.

Renew flashing seals by chipping out the old mortar and caulking along the edges of the flashing. If the ice and water shield is missing then you will have to remove the shingles on both sides along the valley put ice and water shield in place and re shingle the roof. Replace cracked broken or rotted shingles with the new ones you purchased. Isolate areas when you run the hose.

A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. These instructions should now allow you to repair a leaking roof valley on a roof with woven shingles. The use of heat is required. And damaged flashing is behind most roof leaks.

A flashing is a transitional roofing material that connects the roof material to some other building material or to another part of the roof. Use two roofing nails per shingle. In either situation the leaking roof valley can be fixed by removing affected shingles and structural elements and upgrading your roof s flashing. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.

If you find that this is a problem then you will need to repair your roof valley before anything serious happens such as plaster loss or even major water damage.