Repairing Lead Roof Valley

Using different metal to patch valley will cause corrosion.

Repairing lead roof valley.

Typical valley flashing is 14 inches wide. Start at the upper row of shingles at the upper end of the. Follow these three preparatory steps to get ready to fix the valley leak. Most valleys use either aluminum or copper.

The use of heat is required. 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. Apply a breathable felt over the valley board. Remove tiles either side of valley remove lead inspect valley boards.

Move to the highest end of the valley and work your way down cleaning. Clean surface of valley with wire brush. Inspect valley for holes all along joint. Fit code 5 lead in 1 5 m strips nailed one side to allow for expansion.

A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water. Welding lead uses a relatively cool flame and needs to be very precise. Take measurements of your roof flashing most flashing is 14 inches wide but yours may vary. You can patch small holes with the same type of sheet metal valley is made of.

Lead gutter full of sludge and debris. 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. 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. A diy way to repair splits and cracks in lead and lead flashing is to use something we call flash band trade name or sometimes it is also known as flashing tape.

Re fit tiles or slate bed tiles back on to a c strips and point up job done. Position an extension ladder against the lower edge of the roof near the valley that is repaired. Measure the width of the sheet metal valley flashing. T o repair an open valley.