Step 4 replace the shingles.
How to lead a roof valley.
Step 2 remove the shingles.
It also has the added benefit of stiffening the lead which makes carrying it up the roof a lot easier.
The most common open width for a traditional valley is 125mm and this is generally satisfactory for normal domestic roofs.
To secure the roof valley flashing nail it down carefully.
Lead lined valleys the main elements that keep the water out are the upstands and welts at each side of the valley.
Then starting at the base of the.
Find the place where that leak is coming from.
The width of the open valley is dependent upon the roof pitch and the volume of water expected to drain into the gutter.
This video shows the traditional and best way to repair a lead valley on a roof.
Ensure ice and water protector has been installed along the valley first.
This acts as a last line of defence for water penetration.
Table 11 gives the minimum recommended valley widths for different roof pitches and plan areas.
Many roof valley leaks are caused by roofing nails that have been poorly.
This method of lead valley repair is proven to not only be fast and safe wit.
Starting at the bottom of the valley dress the lead neatly onto the valley boards and over the tilting fillets.
How to repair a lead valley.
Bend a welt into the lead 25mm each side.
Thin plywood linings are fitted over the valley boards to maintain a smooth finish under a lead lined valley.
Only nail at the edges with only enough nails to.