B - My home

Emissions from products – Building materials for M&E purposes - KBCN1740

All M&E materials are excluded from VOC assessment requirements. However, from V7 onward, while finished M&E products may be excluded, all on-site applications of paints, coatings, adhesives and sealants used for M&E purposes must be included in VOC assessments under their relevant material categories.

02 July 2025 - Inclusion of duct insulation removed

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Erratum-Projected climate change environment-Emissions scenario missing from manual - KBCN1742

The CIBSE future climate weather files should also use the following emission scenarios. For naturally ventilated buildings - Medium. For mechanically ventilated or mixed mode buildings - High.

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Mixed use buildings (benchmark) – Embodied carbon reporting tool  - KBCN1729

Where the assessed building is mixed use, a comparative, floor-area-weighted benchmark is used to determine the number of credits awarded for criteria ‘06 Embodied carbon benchmark comparison’.   To calculate this, in the ‘Embodied carbon reporting tool’, in the ‘1. Project Input’ tab, enter: 

• the number of building types within the assessed building, and 

• the floor area (GIA) of each of the different building types 

This will enable the tool to calculate the floor area weighted benchmark on the ‘5. Benchmark’ tab

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