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Pitched lead roof details.
Roofs peel off from the edges so it is critical to hold them tight with the roof deck sealed on the outside we turn to flashing the edges with metal and membranes metal drip edge flashing image details roofing wrb flashing.
Horizontal flashings should provide weathering to a minimum of 75mm above the intersection with the roof.
Lead sheet is a soft and malleable metal which means it s an excellent roofing material because it can be formed and shaped to suit any detail.
Where a pitched roof abuts the wall at an angle.
Slate upstands are available in five diameters from the 50mm to 150mm at angles of 30 and 45 to the base for pitched roofs and 90 for flat roofs.
Wood core roll is used for joining bays of lead roofing also on steeply pitched roofs and lead cladding where a bold joint appearance is preferred.
However it is important to follow the basic principles of sizing and fixings as indicated in the rolled lead sheet manual to reduce the effects of fatigue cracking or creep.
Non standard sizes are available.
Valley tiles which allow the roof to be continued round corners they are special tiles which are the opposite of a hip tile really.
Where a flat or pitched roof over an enclosed area abuts a wall or a balcony abuts a wall cavity trays should be linked to the flashing to prevent water penetrating into an enclosed area.
Clips to hold lead permanently in position.
An open valley often 100mm or 150mm wide with a metal normally lead or sometimes a grp lining.
Our basic fitting guides are designed to assist installing rolled lead sheet in a range of roofing applications including flashings valleys gutters and flat roofing.
It is shaped to prevent wind lift.
The base dimensions of the slates are 450mm x 450mm and the minimum upstand height at the saddle side of the pipe base joint is 150mm.