SureCav Type-W Vent Extender Duct - Pack of 50 - All Sizes

Masonry Walls: SureCav Type-W Vent Extenders are a practical solution for connecting to the rear of Type-W Vents in masonry wall applications with increased thickness. These extenders provide a seamless extension duct, ensuring proper ventilation while accommodating thicker masonry skins. Easy to install and designed for durability, they maintain the effectiveness of the cavity venting system, supporting long-term building performance and compliance with ventilation requirements.

Does the cavity need to be ventilated?

Appropriate ventilation for the cavity must be provided by air bricks or perp/weep vents, providing a minimum of 1500mm2 per linear metre, venting at DPC and lintels as normal and high level if required – see BBA certificate section 9:2. Ensure a corresponding slot, matching the vent aperture, is cut in the SureCav panel to allow full ventilation.