ABOUT CAVITY TRAYS

A cavity tray is a damp proof course that crosses the 50mm wide cavity of a cavity wall, stepping up at least 150mm between the outer and inner leaves, to form a cavity tray gutter which leads to a weephole in the outer brickwork leaf. Cavity trays are used at an abutment where brickwork rises above a roofslope; cavity trays keep the wall below dry by draining rainwater back through the outer leaf. The cavity tray is usually built into the bed courses of the outer leaf of brickwork, but cavity trays can be simply turned up to rest against the inner leaf. The outer edge of a cavity tray may be joined to a lead counter-flashing, which later turned down, outside the wall, over the roof upstand flashing when the roof covering is completed.

Cavity trays are often preformed of heavy plastics to many shapes: stepped, staggered, arched, stop ends, etc.

SPONSORED LINKS

LEADING UK CAVITY TRAY SUPPLIERS

Timloc is a leading supplier of cavity trays, which may be supplied either to standard design or custom designed. Timloc cavity trays can be supplied with our without lead attachment. The advantage of having the lead factory attached is that it gives certainty of quality and reduced waste. It also ensures that the cavity tray will fit the roof pitch precisely.

Cavity Trays Ltd is a leading supplier of cavity trays. Its range of cavity trays includes: Cavitray cavity trays for arches; moulded DPC barriers for use with arches; DPC cavity trays designed for use with a range of standard steel lintels; and cavity trays for use within cavity walls.

DETAILED INFORMATION RESOURCES ON CAVITY TRAYS

We recommend the following websites, with building product information including manufacturers' specs, standard specifications, and CAD details: Barbour Compendium at www.barbourcompendium.co.uk, RIBA Product Selector Plus at ww.productselector.co.uk, ASC Bricsnet at www.ascinfo.co.uk, Building Products Index at www.bpindex.co.uk, British Board of Agrément at www.bbacerts.co.uk, British Standards Online at www.bsonline.bsi-global.com.

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