Slate Roof Lead Valley Detail

Lead lined valley one of the areas of a pitched roof most prone to leakage if not constructed properly is the valley.

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. Table 2 thickness of lead sheet for various purposes use bs en12588 code no. Slate versions are seen in wales aa well as the half swept or single cut. The shingles or slate must lap the flashing at least 6.

A common misconception is that the mortar bedding is there to prevent water access. It is an area where water is directed towards rather than away from therefore correct detailing and construction is essential. Download this free 2d cad block of a typical slate valley gutter lead detail including annotations and dimensions. Two different cants are illustrated.

Click to enlarge any image overlap metal roof valley sections by 12 inches and seal the lap with a flexible sealant such as polyurethane or butyl on roofs shallower than 5 12. Autocad 2000 dwg format for a full range of ssq natural slate tiles please visit. Here you can find instructions for installing a slate roof repairing and restoring slate roofs and repairing asbestos roofs and ceramic tile roofs. Soakers 3 or 4 apron and cover flashings hip and ridge flashings pitched valley gutters weatherings to cornices parapets etc.

The detail shows a typical open valley flashing for a shingle or slate roof. The cant strip can also be constructed as shown in detail 9 5d. Fixing sequence at mitred valley 1 lay a strip of underlay 600 mm wide over the valley underlapping the main underlay. Vermont slate offers the widest range of roofing slates in the market with more than 40 000 combinations of models sizes and shapes.

Below is a photo of a buckled cracked and leaking roof valley caused by just this problem. A natural material that lasts over 100 years and guarantees a perfect performance in any condition. In the east midlands where collyweston limestone slates are produced the laced valley is the normal detail. 4 or 5 lead slates chimney flashings back gutters apron and side flashings parapet box and tapered gutters 5 to 8.

Slate is the best roofing material known to men. 2 cut slate and a half carefully ensuring that adequate width is maintained at the tail. This video shows how to cut valley slates in a fast accurate and professional manner.