Lead Roof Details

British and european standard bsen 12588.

Lead roof details. 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. Whilst shaping some of the oldest and most beautiful architecture lead is regularly used in more modest commercial and domestic roofing too from whole roof coverings porches turrets and parapet roofing to modern roof waterproofing details like flashings valleys and gutters. Calder booklet doc no010 6 5 05 11 57 am page 2. 3 calder booklet doc no010 6 5 05 11 57 am page 3.

Master flow lead roof flashing is used as boot flashings around pipes extending through roof. Rolled lead sheet is the only lead sheet produced to a. Lead sheet adorns the roofs of churches offices factories public buildings and homes throughout the united kingdom because of its durability and ease of use. Accurately predicting the performance of a roofing material initially depends on the quality of the material concerned.

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. 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. Thickness weight chart 5. Associated lead mills ltd jamestown metals ltd unit b bingley road hoddesdon en11 0nx 2.