Lead has been used as a weatherproof finish on buildings for many centuries and has stood the test of time.
An exceptional material for roof coverings, to cover flat roofs, to line valley gutters and to cover a wide variety of connections between slate/tile work and masonry, chimneys and to waterproof the junction between tiles and brickwork, or tile-to-tile junctions which are vulnerable to penetration by water, such as gullies.
A lead 'soaker' is a sheet of lead placed under the tiles at a join, for example, against a wall covered with step flashing to form a waterproof seal.
To most people, lead sheet is all the same. Even some within the construction industry itself are not aware of the different types of lead sheet that are available today.
Rolled lead sheet is the only type which is manufactured to a British and European Standard.
The Rolled lead sheet is formed by passing a slab of refined lead back and forth on a rolling mill between closing rollers
Sand Cast Sheet, the traditional method of manufacture persists, with molten lead being poured across a prepared bed of sand and then "skimmed" to the required thickness.
Machine Cast Sheet is produced by immersing a rotating water cooled metal drum into a bath of molten lead, the lead solidifies on the surface of the drum and is lifted from the molten bath and is peeled away as the drum rotates.
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