The NHBC and LABC advocate the use of preformed trays for complicated junctions, and trays play an important role, wherever the external cavity wall is punctuated by a window or door opening.
In the case of arched openings, bespoke preformed trays provide the assured way of integrating DPC protection, regardless of whether constructing using traditional centring, stone, concrete or arched metal lintels.
The demand is growing for purpose-made trays, according to the longest-established UK specialist, Cavity Trays Ltd of Yeovil.
The Company operates a Helpdesk service and a tailor-made service for all industry disciplines, providing specific suitability solutions in line with NHBC and LABC guidelines.