Earthwool Masonry Party Wall Slab is used for the thermal and acoustic insulation of masonry cavity party walls and is friction fitted between the cavity wall ties. This product can be used as part of a full fill solution to achieve a zero effective U value within SAP 2009. It is designed as a full fill thermal and acoustic solution for use in masonry cavity party walls between adjoining appartments, semi-detached and terrace houses. Earthwool Masonry Party Wall Slabs represent no known threat to the environment and has a zero Ozone Depletion Potential and zero Global Warming Potential. This slab is available in either  75mm or  100mm , contact us today to find out more.