How To Lead A Roof Valley

This acts as a last line of defence for water penetration.

How to lead a roof valley.

How to repair a lead valley. Find the place where that leak is coming from. Step 4 replace the shingles. This method of lead valley repair is proven to not only be fast and safe wit.

Step 2 remove the shingles. Many roof valley leaks are caused by roofing nails that have been poorly. Thin plywood linings are fitted over the valley boards to maintain a smooth finish under a lead lined valley. It also has the added benefit of stiffening the lead which makes carrying it up the roof a lot easier.

Starting at the bottom of the valley dress the lead neatly onto the valley boards and over the tilting fillets. Bend a welt into the lead 25mm each side. Step 1 find the cause. The width of the open valley is dependent upon the roof pitch and the volume of water expected to drain into the gutter.

Only nail at the edges with only enough nails to. This video shows the traditional and best way to repair a lead valley on a roof. Step 3 lay the flashing. Table 11 gives the minimum recommended valley widths for different roof pitches and plan areas.

Lead lined valleys the main elements that keep the water out are the upstands and welts at each side of the valley. The most common open width for a traditional valley is 125mm and this is generally satisfactory for normal domestic roofs. Ensure ice and water protector has been installed along the valley first.