Architecture, Design & Innovation
‘New 2019 manual is extensive, informative and contains excellent construction solutions’ Cavity Trays of Yeovil is the longest-established specialist in its field, and importantly is the only UK cavity tray manufacturer awarded European Technical Approval. …
When building in natural stone, there are two popular methods of construction. The traditional method is to build against a backing skin of blockwork, behind which is the cavity and inner leaf. The result is …
When an existing house is constructed with cavity walls, extending the building should always follow the ‘parallel rule’ – the term applied to both skins maintaining an equal distance apart. It is also important to …
The new Type PAT – Protective Adjustable Threshold – manufactured by Cavity Trays of Yeovil has just secured the Product of the Year Award in the Housebuilder 2018 Awards. Designed for use when constructing on …
Rain blown against a cavity wall will gradually permeate the exterior masonry skin and gravitate downwardly. Where the cavity wall incorporates an arched opening, the downward flow is interrupted and water is prevented from permeating …
Cavity wall (contaminated land) gas barriers usually rise not less than 150mm in the cavity and often have to rise considerably more as they rely on support by being built into the inner skin – …
Yeovil-based Cavity Trays Ltd has developed a ready-to-use solution to eliminate a reoccurring construction problem when building on contaminated land. Originally conceived for Radon gas situations, it is called the Type PAT – Protective Adjustable …
Parapet cavity walls behave differently because both faces are exposed. The prevailing document dealing with the design of masonry structures and sections is PD6697 and it states the protective DPC tray within a cavity parapet …
The provision of insulating mediums under or on top of floor slabs and to all slab edges reduces heat loss and improves the acoustic behaviour of the structure. But the question arises of whether edge …
The practice of providing support to cavity-spanning DPC’s by building into both masonry skins came about because there were few alternative options to hold a soft or pliable DPC in position. Unfortunately, the practice can …
A builder who had constructed houses with bay windows in the same manner for years was puzzled why several of his latest homes had damp ceilings under the bay roofs. Nothing had changed as far …
The pitch of an abutting roof may be constant where it strikes a flat cavity wall, but if the wall is curved the actual angle of intersection changes throughout the slope. For a brief moment …
The only cavity tray company in the UK awarded European Technical Approval and the longest-established in its specialised filed is displaying its latest products at the Scotland Build Show 2016. Cavity Trays of Yeovil has a history …
The longest-established company in its specialised field and the only cavity tray company in the UK awarded European Technical Approval is displaying it latest products at the Build Show. Cavity Trays of Yeovil has a history …
Building Regulations now require where feasible the extent of insulation within specified elements is upgraded as part of renovation works if the existing provisions are insufficient. Accordingly when constructing or replacing a cold flat roof, …
The 2015 edition of ‘Protecting the Building Envelope’ (volume 27) is a full colour A5 manual of 147 pages containing the latest best practice building details. This latest edition includes more than 168 enhancements plus …
Various British Standards have been withdrawn in the past few years but one that remains is BS 8215. If you pick up the latest PD 6697 it currently refers back to BS 8215 as a …
As a consequence of the recent storms, conservatories and extensions previously unaffected by rain have become damp and wet inside. Rain has penetrated the original property wall area above the conservatory/extension roof, and gravitated below …
The Type LTT is a Level Threshold Tray manufactured by Cavity Trays of Yeovil. It provides a uniform standardised construction arrangement that removes risk. By isolating one of the area’s most susceptible to damp transference, …
Getting water out of any masonry wall at one time utilised reed straw, chosen because it provided a discreet conduit through which water could evacuate. Its’ size meant it could be incorporated within solid walls …
Parapet cavity walls behave differently because both faces are exposed. Such dual exposure dictates the protection against damp penetration takes into consideration more variable elements than are normally encountered. And if the parapet is curved, …
When site conditions dictate the use of raft construction, the builder faces a dilemma of how to bring together conflicting design aspects. In instances where there is a timber separating wall, (as depicted within the …
The attachment to an existing exterior skin of an extension results in the original exterior skin becoming an internal wall below the new roofline. If the abutting roof is flashed only, there is nothing to …
When constructing cavity walls incorporating partial fill insulation, the insulation terminates at plate level. It is common practice to also terminate insulation at plate level across the gable ends rather than extend it up to …
Cavity Trays of Yeovil, the only cavity tray manufacturer awarded European Technical Approval has switched on to a new power source, following the installation on its factory roof of photovoltaic panels. The panels generate enough …
As well as affecting the extent of localised water-wash passing over the surface of the masonry, curved cavity walls can also change the behaviour of water and its permeation of the outer skin. In a …
The thermal insulation integrity of window and door openings in cavity walls can be increased by using an approach that combines new and traditional methods. One approach is to use two separate lintels, with an …
