There has been some recent debate pitting one against the other as standards to be adopted in the UK. PDS is firmly committed to the Passivhaus standards and principals, but there is room for both in our move towards the low energy and sustainable home.
The Code of Sustainable Homes has many good requirements, but it is not an assessment tool that fully evaluates the impact resulting form the lower and lower energy demands that will come with higher reduction targets. The SAP tool to assess energy is not based on design principals that consider fully the impact on building fabric and materials as we increase thermal efficiency and air tightness.
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