Slate Roof Lead Valley Detail

3 fix slates to interleave with code 3 lead or stainless steel soakers nailed to battens at the top edge to provide a straight weathertight close mitred joint.

Slate roof lead valley detail. Table 2 thickness of lead sheet for various purposes use bs en12588 code no. Autocad 2000 dwg format for a full range of ssq natural slate tiles please visit. Slate is the best roofing material known to men. It is an area where water is directed towards rather than away from therefore correct detailing and construction is essential.

In the east midlands where collyweston limestone slates are produced the laced valley is the normal detail. Lead lined valley one of the areas of a pitched roof most prone to leakage if not constructed properly is the valley. This autocad detail can be used in your roof design cad drawings. But because the slaters produced their own slates and traveled with them to wherever collyweston slates were specified the laced valley went too.

A common misconception is that the mortar bedding is there to prevent water access. The shingles or slate must lap the flashing at least 6. Fixing sequence at mitred valley 1 lay a strip of underlay 600 mm wide over the valley underlapping the main underlay. Here you can find instructions for installing a slate roof repairing and restoring slate roofs and repairing asbestos roofs and ceramic tile roofs.

4 or 5 lead slates chimney flashings back gutters apron and side flashings parapet box and tapered gutters 5 to 8. A natural material that lasts over 100 years and guarantees a perfect performance in any condition. The cant strip can also be constructed as shown in detail 9 5d. Soakers 3 or 4 apron and cover flashings hip and ridge flashings pitched valley gutters weatherings to cornices parapets etc.

2 cut slate and a half carefully ensuring that adequate width is maintained at the tail. Two different cants are illustrated. Slate versions are seen in wales aa well as the half swept or single cut. The detail shows a typical open valley flashing for a shingle or slate roof.

This video shows how to cut valley slates in a fast accurate and professional manner. Download this free 2d cad block of a typical slate valley gutter lead detail including annotations and dimensions. Below is a photo of a buckled cracked and leaking roof valley caused by just this problem.