With this G912 joist seal from Manthorpe, you can say goodbye to impractical joist handers and time-consuming installation. It offers unbeatable protection against air leakage by simply placing the box at the joist's tip and installing it on the inner leaf. Thanks to the foam g... Read More
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Find out moreWith this G912 joist seal from Manthorpe, you can say goodbye to impractical joist handers and time-consuming installation. It offers unbeatable protection against air leakage by simply placing the box at the joist's tip and installing it on the inner leaf.
Thanks to the foam gasket, this joist seal fits snugly into the wall's interior layer without being affected by timber drying or shrinking. The seal between the masonry and the box is exceptionally durable, keeping air from leaking into the cavity.
To ensure maximum security, the box's inner flange features push-out pockets, making it easy to use restraining straps when needed. Plus, every G912 joist seal is rigorously tested for one-hour fire resistance in party wall details and is fully compliant with Part L of Building Regulations.
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