Lead Flat Roof

Lead is commonly used for flat roofs because of it s long life and ability to be formed to fit many positions lead must be laid and formed correctly to achieve this long life however.

Lead flat roof. Investigative work carried out on warm roofs covered in lead has shown that in rare instances moisture can also be introduced by the development of sub atmospheric pressure in the roof space. Note no nails in the edge. Each job is different and presents different difficulties. Correctly laid lead roof greyfriars roofing note the height of steps between bays the rolled joints and adequate overlaps problems.

When the lead rests directly onto sawn timber on a steeply pitched roof and non resinous timber has been used underlay may not be necessary. 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. How accessible is the roof. Flat roofs are an ancient form mostly used in arid climates and allow the roof space to be used as a living space or a living roof flat roofs or low slope roofs are also commonly found on commercial.

Used to join lead together into smaller pieces reduce expansion and contraction issues create up stands and troughs provide. When a hot roof surface is suddenly cooled by rain the pressure in the area between the vapour barrier and roof covering can fall below atmospheric. More about lead as a building material. Lead expansion joints have been recommended by the lead sheet association for cases where it is impossible to incorporate drip joints in the refurbishment of.

Laid correctly lead can last over 100 years. The temperature of lead on a roof varies constantly. Because of these advantages lead is widely used for flat roofs roofs over oriel bay or dormer windows ridges gutters and flashings. If the cost of living is significantly higher then you should expect the charges to be higher too.

The price of flat roof replacement in the uk depends on factors like. Unlike other materials it can be shaped and joints can be welded. How much does a flat roof cost. Flat roof roll and drip intersections 42 pitched roof joints and fixings 43 pitched roof intersection with valley 44 vertical cladding joints and fixings 45.

The height of the roof and whether scaffolding is required or not. A new lead bay fitted in a simple one piece bay like this one the lead is nailed into the upstand underneath the guttering the drip is then beaten nice and tight over the edge of the roof and trimmed to about 50mm. On a low pitch roof where the lead isn t free to move it is more likely to buckle on expansion or stretch as it contracts.