The changes to Part L1A of the building regulations, which came into effect on 1st October 2010, have placed an unprecedented focus on the thermal effect of party wall cavities. In order to help specifiers meet the new requirements, Knauf Insulation offers solutions for both masonry and timber frame construction. <br> <br> For masonry construction, Knauf Insulation will be able to supply a blown-in solution, offering complete flexibility. Intended for post-construction applications, Supafil Party Wall is a premium quality, non-combustible, glass mineral wool insulation that requires no mixing on site. Proven during in-situ testing to fully fill the cavity and completely prevent heat loss within a party wall, it saves energy and reduces carbon emissions. <br> <br> For timber frame construction, Earthwool Timber Frame Party Wall Slab will be available as a built-in glass mineral wool solution that has been specifically designed to be friction fitted into the cavity between the timber frames. The slabs are non-hygroscopic and rot proof – essential considerations for installation in a timber framed building.<br> <br>