With common openings in external cavity walls supported by lintels of metal, concrete, stone or timber, the opportunity exists to offset the evacuation of penetrating rain so discharge is not in the vicinity of the opening.
Cavity Trays Ltd was asked to visit an attractive church that had been erected ten years earlier. It was built of cavity wall construction, punctuated with some large traditional stone mullions. A sympathetic blend of new with old.
Whilst best known as a phrase used in film making to signify that a particular scene or film has finished, it’s also an important term used on site. Importantly, it’s a term worth remembering - it will prevent a problem that can otherwise support wet ingress.
ROCKWOOL has been accredited with the British Board of Agrément (BBA) Agrément Certificate for its NyRock® Rainscreen 032 product.
On the 1st January 2023, the use of conventional roll DPC to provide protection against wet ingress over window and door openings in cavity walls changed.
External openings within cavity walls have lintels provide support, with some lintels also acting as a damp proof course. The majority of other lintels, whether metal, stone, concrete or timber, require a DPC. How, what, where and to what extent are details that are commonly assumed, in reality compromised or flawed?
Paul Barrett, Head of Product Management at ROCKWOOL UK, explores the importance of the acoustic performance of buildings in urban settings.
NyRock® Cavity Slab 032 combines the UK’s lowest lambda rating for stone wool with acoustic and fire performance, plus space saving capabilities
Textbooks overlook a commonly-occurring design consideration that arises where some horizontal and some sloping roofs abut a cavity wall. Consequently, despite construction observing guidelines and regulations, the building suffers wet ingress.
100 years ago in the 1920’s, a West-Country family of builders started fabricating ‘damp courses and other devices to allay the fears of the unpredictable and volatile English climate.’ The Company is now called Cavity Trays Ltd and the Company continues to specialise in keeping the building envelope dry.