Damp after the storm

The recent weather conditions have brought to light ten construction details that can pose a challenge in dealing with wind-driven rain.
- Traditional stepped running flashings: once the rain has been driven just a few millimetres under the running flashing leading edge, it permeates part of the building that should be kept dry.
- Bay windows: sideways soak because there is no tray protection linking the bay lintel support level with the higher roof DPC intersection level.
- Extensions: absence of tray at roof intersection level.
- Window and door openings: inadequate and incorrect protection integration
To address these issues, Cavity Trays Ltd specialises in providing solutions for construction problems, both for new and remedial works.
As the UK’s longest-established cavity tray DPC company, Cavity Trays Ltd is the only manufacturer of cavity trays awarded European Technical Approval. We offer the broadest range of trays to meet NHBC and LABC requirements. Cavity Trays Ltd are on hand to help you with our Technical Manual and pocketbook if you face any construction challenges related to wind-driven rain.
Learn More
See the full range offered by Cavity Trays Ltd. For more see the The Book of Wise Decisions and our Technical Manual Protecting the Building Envelope containing technical data and helpful guidance. Both are available in hardcopy form, without charge upon request. Alternatively, visit our resources page for more.
Remember, whilst standard products are suitable for most applications, some projects require bespoke solutions. Cavity Trays is able to manufacture custom ventilation solutions tailored to specific project needs. Unique architectural designs, historic building renovations, or new builds with unconventional roof structures. Contact Cavity Trays Ltd
Get in touch with Cavity Trays today
Call our team on 01935 474769 or email [email protected]