- Publication date
- 31st March 2017
- Information types
- Policy areas
For premises in a multi-storey building (not including the top floor of the multi-storey building) that are connected to a district heating system (DHS) under CERO or HHCRO social EFG, pre-condition 2 must be met.
This technical report can be used to evidence instances where there are technical reasons why a cavity cannot be filled. In such instances, this report alongside legitimate reasons for not insulating the cavity will satisfy pre-condition 2 for the premises it relates to. This report can also be used to evidence that walls are of solid wall construction.
Further information on the ECO2 requirements can be found in our ECO2t Guidance.