Skip to content
U-Value Guidance for members
Blog

U-Value Guidance for members

View all posts

ecmk has produced guidance to help members understand the use of U-Values in relation to RdSAP conventions and ECO4 lodgements for EPCs and ERPs.

This guidance supports the TrustMark EPR Conventions 2.01:

Overridden u values will not be accepted as permissible, unless via prior agreement with the scheme provider on receipt of suitable confirming validated evidence.

Where agreement is provided, the post equivalent u values in the post EPR must be calculated based on the u value of the pre EPR and the thermal resistance of the insulation product installed.

For further reference please see RdSAP Conventions 3.08.

If you need guidance on U-Values we recommend that you download the U-Value Guidance Document, along with the Permission to Overwrite U-Values Form.

To request permission to overwrite U-Values, members must email support@ecmk.co.uk with the completed U-Value Permission Form and any supporting documents and evidence before lodging.

For further advice, please get in touch with the ecmk team prior to lodging. Contact us on support@ecmk.co.uk | 0333 123 1418.

Related news

Important Regulatory changes to the sharing of EPC data for England and Wales
17/5/24

Important Regulatory changes to the sharing of EPC data for England and Wales

The Government has made amendments to the Energy Performance of Buildings (England and Wales) Regulations 2012 to improve data access …

Read more
Best Practice Guide for Retrofit Technical Issues
10/4/24

Best Practice Guide for Retrofit Technical Issues

For individuals involved in Retrofit Projects, a new “best practice guide” is available for download. Nigel Jones from ecmk has …

Read more
Energy Professional Accreditation Auditor Job Vacancy
19/3/24

Energy Professional Accreditation Auditor Job Vacancy

ecmk are looking for a Energy Accreditation Professional Technical Auditor┬áto join the team. This is a fantastic opportunity for Qualified …

Read more