Preventing Thermal Bypasses in Party Separating Walls


Revisions to the Building Regulations applicable to the various regions of the United Kingdom, which are effective from October 2010, recognise for the first time that considerable heat can escape through untreated, internal cavity walls between connected buildings. These walls are referred to as party walls in Part L of England and Wales’s Building Regulations and separating walls in Section 6 of Scotland’s Building Standards. The heat lost through these walls needs to be considered as part of the design process.