- Publication date
- 28th February 2017
- Information types
- Policy areas
This form must be completed for all loft insulation measures with less than or equal to (≤) 100mm of pre-existing loft insulation.
The form must be secured in the loft for the purposes of technical monitoring. If, during a technical monitoring inspection, the completed declaration is not present in the loft, that measure will fail technical monitoring. Only the form provided on our website can be used to meet this requirement.
Following misrepresentation of loft insulation in ECO1 and ECO2, this document helps to provide us with some assurance that no loft insulation has been removed in the past six months and that the correct starting depth has been identified.
Please note that this document supersedes the virgin loft declaration used in ECO2.
Further information on the ECO2t requirements can be found in our ECO2t Guidance.