Manthorpe Double Joist Seal Cap 100mm x 100mm x 225mm

The Manthorpe Double Joist Seal Cap is specifically designed to address the issue of air leakage commonly associated with built-in timber joists. With dimensions of 100mm x 100mm x 225mm, this innovative solution offers an effective sealing mechanism. The cap is placed over the joist's end and integrated into the inner leaf of the external wall construction, sealing any potential gaps with a foam gasket. Even as the timber naturally dries and shrinks, the seal remains intact, preventing air leakage into the cavity. The inner flange features push-out pockets for convenient placement of restraining straps as needed. This product provides substantial time savings during installation and is compliant with Building Regulations Part L (Air Leakage). It boasts a perimeter sealing flange with an airtight foam gasket, rear location tabs for positive pressure, and cut-out slots for fitting restraining straps as required.

Features:

• Dimensions: 100mm x 100mm x 225mm
• Designed to solve air leakage issues in built-in timber joists
• Foam gasket seals the penetration between the box and the masonry
• Maintains seal as timber shrinks and prevents air leakage into the cavity
• Push-out pockets for easy placement of restraining straps
• Provides substantial time savings during installation
• Compliant with Building Regulations Part L (Air Leakage)