Fire Rated Cavity Closers and Cavity Trays in New-Build Construction
In new-build construction, achieving high standards of safety, durability, and energy efficiency is a top priority. Fire rated cavity closers and cavity trays are two key elements that help contractors and housebuilders meet these goals. Each component plays a distinct role: closers protect openings and improve fire safety, while trays prevent moisture ingress at critical wall junctions.
Fire rated cavity closers are installed around windows and doors to seal the exposed cavity. They prevent heat loss, reduce cold bridging, and provide a fire-resistant barrier within the cavity. This slows the spread of flames in the event of a fire, helping the building comply with UK Building Regulations and ensuring occupant safety. In new-builds, these closers are often integrated during the first-fix stage, providing a clean and effective solution as the walls are constructed.
Cavity trays are used to prevent moisture penetration at roof abutments, gable ends, and above openings. Acting as a stepped damp-proof course, they channel water safely to weep vents, protecting the internal leaf from damp and structural damage. Pre-formed cavity trays are lightweight and simple to install, making them ideal for new-build projects where speed, efficiency, and consistency are important. They ensure that the building envelope remains dry and performs effectively over the long term.
Together, fire rated cavity closers and cavity trays create a complete protection system for cavity walls. Closers safeguard openings, while trays manage moisture at key junctions. This combination ensures that new-build properties are safe, thermally efficient, and compliant with modern standards. Proper integration of these components reduces the risk of damp, mould, and fire hazards, ultimately enhancing the durability and quality of the build, especially when supported by secure fixings such as Spechunter wall ties to maintain structural stability throughout the cavity wall system.
Additionally, these components contribute to energy efficiency. Eliminating cold bridging and maintaining consistent insulation improves internal temperatures and reduces heating costs. This aligns with sustainability goals and building regulations that increasingly focus on energy performance. For housebuilders and developers, fire rated cavity closers and cavity trays are therefore indispensable components in delivering safe, high-quality, and long-lasting homes.
