This joist seal from Manthorpe's G912 range has been created to resolve the issues of air leakage, related to built-in timber joists. With the box positioned over the end of the joist, this joist seal can be built into the inner leaf block work of the external wall construction to form an air-tight seal with the masonry and ensure excellent insulation.

Brand Name	Manthorpe
Colour	Translucent White
Material	N/A
Manufacturer Model No	G912-100-100
Wear Type	N/A
Type	Joist Seal
Certifications Met	N/A
Country of Origin	N/A
Protects From	Air Leakage
Waterproof	N/A
Number of Pockets	Several push-out pockets
Height	225mm
Block Size	100mm
Width	100mm
Features	Prevents air leakage, Complies with Part L of building regulations, Removes the need for clumsy joist hangers