Efficiency concerns prompt calls for testing
A housing body is calling for post-construction checks of the energy efficiency of new homes after tests showed designed levels are not being achieved.
The Good Homes Alliance, a group of developers, academics and other professionals, measured the fabric performance and heat loss of four energy efficient homes after construction.
The Energy Saving Trust and Communities and Local Government department backed study found all four buildings had a heat loss of 14 per cent higher than designed, although they all performed better than the building regulations design targets they were required to meet at the time of planning approval.
The GHA makes a number of recommendations, including:
- The house building industry undertakes fabric heat loss testing of a sample of all new homes built
- The government should encourage and incentivise the industry to gather evidence about the fabric performance of new homes
- The government works with the industry to develop a national feedback and learning programme, including training around heat loss.
Jon Bootland, director of the GHA, said: ‘If the government is to meet its carbon reduction targets, an evidence based approach to the design and build of sustainable homes is urgently needed.
‘Encouraging more developers to undertake testing and monitoring and setting up mechanisms to collate and feedback the results of measurement to the industry as a whole, will help to ensure the sustainability of new homes in an era of difficult environmental challenges and rising energy prices.’