Insulation of Existing Party Walls

Insulation of existing party walls to be recommended DECC have announced that party wall insulation will be included within energy calculations for existing homes WHAT IS A PARTY WALL? HEBA A party wall is a wall built to divide two adjoining buildings The decision to include party wall insulation within existing homes comes after 8 years of research headed by Leeds Metropolitan University, MIMA (Mineral Wool Insulation Manufacturers Trade Association) and Knauf Insulation to monitor the real performance of existing homes. We found a huge amount of heat being lost through uninsulated walls to party wall thermal bypass WHAT IS A PARTY WALL THERMAL BYPASS? Party wall thermal bypass is a process whereby heat is lost due to moving cold air which enters an uninsulated cavity party wall resulting in heat loss via convection By fully filling the cavity party wall with SUPAFIL PARTY WALL the properties on both sides of the party wall benefit from heat retention HOW MANY HOMES DOES IT AFFECT? 5 20% million+ of UK housing stock It is estimated that there are over 5 million (20%) homes in the UK built with a party wall cavity and losing money to party wall thermal bypass. Homes built post wW2 (1945+) are generally built with a cavity party wall and are likely to be uninsulated. HOW MUCH HEAT IS LOST? If all uninsulated party wall cavities were treated: £465m.cnd 2.5m tonnes of CO, could be saved each year* this is equivalent to the carbon dioxide emissions generated by one person taking London 2.5m return flights ** London to New York New York ** driving 5 billion miles in a 4x4 vehicle ** or travelling 27.5 billion miles on national rail kNaufINSULATION its time to save energy *BRE **Aviation Environment Foundation