Door energy rating DER
Door Energy Rating schemes are based on a traffic-light style A-G ratings system for energy efficiency similar to the labelling system used for fridges, washing machines, cookers and so on. An A rating indicates a good level of energy efficiency, whilst G is the lowest rating. Low rated doors will not normally satisfy building regulations requirements.
The British Fenestration Rating Council (BFRC) operates a Door Energy Rating Scheme. BFRC is a wholly-owned subsidiary of the glazing industry’s trade association, the Glass and Glazing Federation. BFRC also operates a Window Energy Rating (WER) scheme. They launched the Door Energy Ratings Scheme in September 2011.
The rating includes consideration of U-value and air infiltration. Solar gain is not included in the rating process for external ‘pedestrian doors’. However ratings for doors with a glazed area of 60% or more do include solar heat gain (g-value). This is the same rating method that is used for Window Energy Rating.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Male construction workers and prostate cancer
CIOB and Prostate Cancer UK encourage awareness of prostate cancer risks, and what to do about it.
The changed R&D tax landscape for Architects
Specialist gives a recap on tax changes for Research and Development, via the ACA newsletter.
Structured product data as a competitive advantage
NBS explain why accessible product data that works across digital systems is key.
Welsh retrofit workforce assessment
Welsh Government report confirms Wales faces major electrical skills shortage, warns ECA.
A now architectural practice looks back at its concept project for a sustainable oceanic settlement 25 years on.
Copyright and Artificial Intelligence
Government report and back track on copyright opt out for AI training but no clear preferred alternative as yet.
Embedding AI tools into architectural education
Beyond the render: LMU share how student led research is shaping the future of visualisation workflows.
Why document control still fails UK construction projects
A Chartered Quantity Surveyor explains what needs to change and how.
Inspiration for a new 2026 wave of Irish construction professionals.
New planning reforms and Warm Homes Bill
Take centre stage at UK Construction Week London.
A brief run down of changes intentions from April in an onwards.
Reslating an ancient water mill
A rare opportunity to record, study and repair early vernacular roofs.
CIOB Apprentice of the Year 2025/26
Construction apprentice from Lincoln Mia Owen wins this years title.
Insulation solutions with less waste for a circular economy
Rob Firman, Technical and Specification Manager, Polyfoam XPS explains.
Recycled waste plastic in construction
Hierarchy, prevention to disposal, plastic types and approaches.
UK Net Zero Carbon Buildings Standard V1 published
Free-to-access technical standard to enable robust proof of a decarbonising built environment.