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BBA approved pre-formed DPC stepped cavity tray system for installation at the abutment of a pitched roof with an external cavity wall to protect from rain water ingress through to the internal wall leaf. Supplied with factory fitted lead flashing which presents a quicker and straightforward installation as the cavity trays and flashings are installed in a single operation, as well as a consistent protective and aesthetical finish. For external walls of stonework construction not exceeding 150mm thickness and built from natural or reconstituted stone with regular course heights, including mortar, of approximately 150mm and clear cavity widths of between 50mm and 125mm; trays to suit clear cavity widths of 126mm+ are also available to order. Fitted lead flashing is supplied cut to suit the project’s specific roof pitch and covering type; available in long and short lead drops. Choice of cavity tray lengths to suit specific roof pitches with a variety of base widths for different wall thicknesses and clear cavity width combinations. Unleaded cavity trays and trays supplied with mortar barrier strips (to aid the installation of post fitted lead flashing) are also available. In comparison to alternative on-site DPC fabricated methods; preformed cavity trays present many features and benefits including reliability, speed of installation, reduced cold bridging opportunity and site waste.
|Size & Weight|
|Max Length (?)||1250 mm|
|Max Width (?)||125 mm|
|Min Length (?)||450 mm|
|Min Width (?)||50 mm|
|Thickness (?)||2 mm|
|Certifications & Ratings|
|Certifications (?)||BBA, ISO 9001, ISO 14001|
|Typical Use (?)||External walls, Roofs|
|Materials & Finishes|
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