** Not all remaining potential properties could be insulated and some which could be insulated would not be cost effective to insulate. This could be due to properties being hard to treat, having limited potential to save energy or being unfillable. Chart 2.6: Remaining potential to insulate the housing stock in Great Britain, December 2013 Table 2.3 and Chart 2.5 show that just over two thirds of properties with cavity walls and properties with a loft are insulated. In comparison only 3 per cent of properties with solid walls are insulated. The following section gives further information on the remaining potential to insulate the housing stock in Great Britain, by insulation type. Cavity wall insulation It is estimated that at the end of December 2013 there were 5.1 million cavity wall properties which could benefit from some cavity wall insulation (27 per cent of homes with cavity walls). Of 1.4 million are considered to have limited potential (0.5 million of this 1.4 million are also considered hard to treat) and 3.7 million are totally uninsulated (3.0 million of the 3.7 million uninsulated properties are considered hard to treat). There are therefore 0.7 million easy to treat, standard cavities remaining. Historical figures and a more detailed breakdown is available in Table 2.6 of the accompanying . Loft insulation In this publication lofts are defined as insulated if they have 125mm or more of insulation. Lofts with less than 125mm of insulation are defined as uninsulated as they would benefit most from top up insulation. At the end of December 2013 it is estimated that there were 7.3 million uninsulated lofts (31 per cent of homes with lofts). Of these 1.7 million are considered to be hard to treat or unfillable
** Not all remaining potential properties could be insulated and some which could be insulated would not be cost effective to insulate. This could be due to properties being hard to treat, having limited potential to save energy or being unfillable. Chart 2.6: Remaining potential to insulate the housing stock in Great Britain, December 2013 Table 2.3 and Chart 2.5 show that just over two thirds of properties with cavity walls and properties with a loft are insulated. In comparison only 3 per cent of properties with solid walls are insulated. The following section gives further information on the remaining potential to insulate the housing stock in Great Britain, by insulation type. Cavity wall insulation It is estimated that at the end of December 2013 there were 5.1 million cavity wall properties which could benefit from some cavity wall insulation (27 per cent of homes with cavity walls). Of 1.4 million are considered to have limited potential (0.5 million of this 1.4 million are also considered hard to treat) and 3.7 million are totally uninsulated (3.0 million of the 3.7 million uninsulated properties are considered hard to treat). There are therefore 0.7 million easy to treat, standard cavities remaining. Historical figures and a more detailed breakdown is available in Table 2.6 of the accompanying . Loft insulation In this publication lofts are defined as insulated if they have 125mm or more of insulation. Lofts with less than 125mm of insulation are defined as uninsulated as they would benefit most from top up insulation. At the end of December 2013 it is estimated that there were 7.3 million uninsulated lofts (31 per cent of homes with lofts). Of these 1.7 million are considered to be hard to treat or unfillable
Quarterly_Statistical_Release_-_GD_ECO_and_insulation_levels_in_Great_Britain_-_20_March_2014.docx