Boarded Lofts Are Lowering EPC Ratings
During EPC assessments, a widespread issue is emerging across UK housing stock — compressed loft insulation caused by standard loft boarding.
Under EPC conventions:
- Assessors must record the actual insulation depth at time of survey
- Where insulation is compressed, only 100–120mm (joist depth) is counted
- Even where 270mm–300mm insulation exists, it may be downgraded in the EPC
This directly impacts EPC ratings, energy efficiency, and compliance with MEES regulations.
Why It Matters for Landlords and Property Owners
Compressed insulation reduces thermal performance and can:
- Lower EPC ratings
- Affect property value and lettability
- Undermine compliance with future EPC C targets
- Waste investment in energy upgrades
In short, incorrect loft boarding can negate the benefits of insulation improvements.
Instaloft Solution: Protecting Insulation, Improving EPC Scores
Instaloft’s raised loft boarding system is designed to:
- Elevate boarding above insulation
- Maintain full insulation depth (270mm+)
- Preserve thermal efficiency
- Support stronger EPC outcomes
EPC Choice Guidance
EPC Choice advises landlords and homeowners to ensure loft insulation is not compressed at the time of assessment, as EPC results are based on what is physically present and performing.
Improve Your EPC Rating
Through this partnership, EPC Choice can help clients:
- Identify insulation issues during EPC surveys
- Improve EPC ratings with compliant solutions
- Support MEES compliance and property performance
Visit: https://instaloft.co.uk/epc-choice/ to learn more.