Changes to Carbon Checker following release of SBEM 5.2d

Approval of revised Carbon Checker following release of SBEM 5.2d (updated)

A new version of Carbon Checker ( has been released to support SBEM 5.2d patch 1.

The change from SBEM 5.2b to 5.2d only added features that support calculations in Wales; calculation results in England are unaffected by this version change.

We have had approval for our 5.2d-compliant version of Carbon Checker for use in England and Wales.  

The situation is potentially confusing, so it is summarised below:


SBEMApplicabilityAssociated Carbon Checker versionStatus
5.2dCurrent1.8.1.004Approved by DCLG



SBEMApplicabilityAssociated Carbon Checker versionStatus
4.1eNew-build Building Regs. and EPCs: Until 31st July 2014 if work starts on site before 31st July 2015.

Existing building EPCs: Until 31st July 2014, but period of grace until 30th September 2014.
1.7Approved by DCLG
5.2dFrom 1st August 2014 (and see above) by Welsh government

As well as implementing the change to support SBEM 5.2d, the new version of Carbon Checker lets users globally edit glazing and window settings for a project rather than having to change them individually.