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Manthorpe Building Products Ltd
Walls & Partitions ">> Structural Components & Protection > Cavity Trays

GW294 - Horizontal Cavity Tray System

by Manthorpe Building Products Ltd

GW294 - Horizontal Cavity Tray System

by Manthorpe Building Products Ltd

Manthorpe’s Horizontal Refurbishment Trays are designed for use in horizontal abutment situations, for retro fit details.


The GW294 Refurbishment Horizontal Tray is designed to provide protection where a new horizontal roof abutment meets an existing wall. It can also be used where the original system has been found to have degraded or even left out of the wall construction.

Alternatively it can be used in new build horizontal situations or in conjunction with the GW295 Horizontal Tray. Integral stop ends and a hook feature remove the need to overlap the trays giving a total effective length of 450mm.

The tray has a unique front mortar clip that can be removed at any time once the mortar has set leaving a 25mm deep aperture into which the lead is inserted and secured with lead wedges.

A G950 Weep Vent or G951 Peep Weep must be used in each tray to drain away the collected water.

The GW294 Refurbishment Tray can also be supplied with short, standard or long lead stapled and sealed to the tray in either code 4 or code 5 (special order).


Key Features

Part of the horizontal tray system

For refurbishment

Horizontal abutment trays

Integral stop-ends

Removable mortar strip for easy lead application

Additional handed stop-ends.


Fitting Requirements

Trays should be positioned between 75-100mm above the finished roof line depending on the detail and lead drop required.


Bed the trays down on to a thin layer of mortar, interlocking each tray over the adjacent tray at the stop end.


A weep vent should be placed every 450mm to drain away any collected water.


Certifications

N/A


Regulations & Standards

BS 5628-3:2005 Code of practice for the use of masonry.


BS 8000-6:2013 Workmanship on building sites. Code of practice for slating and tiling of roofs and walls


BS 8215:1991. Code of practice for design and installation of damp-proof courses in masonry construction.


NHBC Standards 6.1


BRE DIGEST 262/380.


GW294 - Horizontal Cavity Tray System

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Specification Details for GW294 - Horizontal Cavity Tray System (Cavity Trays)

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Manthorpe Building Products Ltd is consulted before specifying.

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