The Screw-FIX Rain Cap is a durable and essential chimney accessory designed to protect flexible flue liner systems from rain ingress and external debris. Installed at the top of the chimney, it ensures the flue remains dry and fully functional, helping to maintain optimal performance and extend the lifespan of the chimney system.
Specifically engineered for use with 316 and 904 flexible flue liners, this rain cap integrates seamlessly into Screw-FIX systems to create a secure, compliant installation. It must be used in conjunction with a top plate and clamp, ensuring the liner is properly enclosed within the chimney in line with Building Regulations Document J.
Manufactured from high-quality 316L stainless steel, the rain cap offers excellent durability and corrosion resistance. In addition to preventing water ingress, it also helps stop birds, vermin, and debris from entering the flue, reducing the risk of blockages and maintaining safe operation.
Suitable for multi-fuel applications—including wood (under 20% moisture), smokeless coal, gas, and oil—this component is rated for temperatures up to 600°C (T600), making it ideal for a wide range of domestic and commercial chimney installations.
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