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In earlier days, birch bark was occasionally used as a flashing material. [7] Most flashing materials today are metal, plastic, rubber, or impregnated paper. [8]Metal flashing materials include lead, aluminium, copper, [1] stainless steel, zinc alloy, other architectural metals or a metal with a coating such as galvanized steel, lead-coated copper, anodized aluminium, terne-coated copper ...
Standing-seam metal roof with concealed fasteners. Mechanically seamed metal with concealed fasteners contains sealant in seams for use on very low sloped roofs, suitable for roofs of low pitch such as 0.5/12 to 3/12 pitch. Flat-seam metal with or without soldered seams. Steel coated with a coloured alloy of zinc and aluminium. Stone-coated ...
Unlike other metals, copper is frequently used in its pure (99.9% Cu) unalloyed form for sheet and strip applications in roofing, exterior cladding, and flashing. [ 8 ] Tempering is a heat treatment technique used to increase the toughness of metals.
Roof covering, visible exterior coating (tiles, slates, shingles, etc.) Elements ensuring rainproofing and proper drainage of the roof (ridge caps, flashing, edge waterproofing elements, etc.) A water collection system (eaves) and rainwater drainage (gutters) Roof windows or skylights.
These two walls are fastened together with metal ties or bonding blocks. [7] The ties strengthen the cavity wall. The water barrier is a water-resistant membrane, either applied to the inner side of the cavity as a film or as a troweled or sprayed liquid. Weep holes in masonry wall. The flashing component is important. [8]
It recommends sealing openings around drainpipes, power lines and cables entering houses and sealing cracks and holes in building foundations and exterior walls and roof joints.