§ Mr. Gordon Wilsonasked the Secretary of State for Scotland what is his latest estimate of the numbers of public sector houses in Scotland which have loft insulation below the regulation requirement; and what is now the average cost of providing acceptable loft insulation in a four-apartment house in Scotland.
§ Mr. Allan StewartIt is estimated that approximately 290,000 public sector houses in Scotland with loft spaces have no loft insulation or have loft insulation below the present requirement of 50 mm under the Building Standards (Scotland) Regulations 1981.
The thickness of loft insulation required under the regulations is to be increased to 100 mm as from 28 March 1983, but houses which are already insulated in accordance with the present standard will not be required to comply with the higher standard. The average cost of providing loft insulation to the 100 mm standard in a four-apartment house in Scotland will be about £105.