Evaluation of the effects of energy conservation measures in existing buildings.

In 1978 the Swedish parliament adopted a ten-year "energy saving plan for existing buildings". Outlines energy saving measures which qualify for public support. Describes survey made of randomly chosen buildings, which had received loans or subsides, to evaluate their effectiveness. Describes collection of information and gives method for calculating energy savings. Reports preliminary result that extra attic insulation leads to substantial energy saving as did replacement of boiler and burner in multi-family homes.