Slate Roof Valley Detail

Calder lead sheet and flashing conforms to the new european standard.

Slate roof valley detail.

Valley gutters 19 box and tapered gutters 20 secret gutters 21 flat roof coverings 22 window flashings 23 contents note. When our clients are looking for a natural slate roof we highly recommend north country slate. General guidance on the most important points to be considered is given below. Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water.

In the east midlands where collyweston limestone slates are produced the laced valley is the normal detail. The cant strip can also be constructed as shown in detail 9 5d the shingles or slate must lap the flashing at least 6. Table 11 gives the minimum recommended valley widths for different roof pitches and plan areas. Effective design of a slate roof must take into account a number of inter related factors including site exposure the pitch of the roof the type of slate selected and the slate lap.

Thin plywood linings are fitted over the valley boards to maintain a smooth finish under a lead lined valley. Here you can find instructions for installing a slate roof repairing and restoring slate roofs and repairing asbestos roofs and ceramic tile roofs. Full application and sitework details are given on pages 8 to 22. Raines brothers inc.

For example in metal roofing systems valleys are commonly fabricated with hems but can also be fabricated without. Roof valley flashing specifications and details roof valley flashing specifications for asphalt shingle roofs open roof valley flashing installation details closed cut roof valley flashing installation details woven roof valley flashing installation details. Two different cants are illustrated. But because the slaters produced their own slates and traveled with them to wherever collyweston slates were specified the laced valley went too.

We have used north country black on a large number of occasions and we ve found it to be an excellent quality slate it is very workable. Bs en12588 replaced bs1178 in august 1999. Important 4 this booklet is a guide to the correct detailing and fixing of lead sheet flashings weatherings and. Slate versions are seen in wales aa well as the half swept or single cut.

The width of the open valley is dependent upon the roof pitch and the volume of water expected to drain into the gutter. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Valleys are a very important part of a well designed roofing system.