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Getting your windows retrofitted with double glazing don’t just happen in an instant. It’s crucial for you to make informed decisions so you know what you are investing in and one of the basic things you need to know about is your new windows’ BFRC energy efficiency window ratings.



What is the BFRC?


The British Fenestration Rating Council, also known as BFRC for short, is a wholly own subsidiary of the glazing industry’s trade association, the Glass and Glazing Federation (GGF). According to its website:


"Its ratings scheme for Energy Efficient Windows is a voluntary scheme that uses energy labels specifically produced for windows that are similar to the energy labels seen on most household appliances.

The most energy efficient windows (rated A to C) also carry the Energy Saving Recommended logo issued by the Energy Saving Trust"

The organisation sets extremely stringent standards for windows to be rated.


The Energy Efficiency Windows Scheme


The BFRC Scheme is the country’s national system for rating the energy efficiency of windows. It is recognised within the Building Regulations to show that your new replacement windows comply with the rules.


The energy efficiency window scheme uses a consumer-friendly traffic-light style A – E ratings guide that is similar to that used on ‘white’ goods such as freezers, refrigerators, and washing machines. These ratings serve as a guide to consumers as ratings can inform them of its energy efficiency as a whole. Windows with BFRC ratings are not just graded according to its materials or parts, but as a whole window.


Each unit of double glazing is given a unique label that displays:


·         The rating level – A, B, C, etc.

·         The energy rating (eg. -3kWh/(m²·y) in this example the product will lose kilowatt hours per square metre per year)

·         The window U value (eg. 1.4W/(m²·K))

·         The effective heat loss due to air penetration as L (eg. 0.01 W/(m²·K)

·         The solar heat gain (eg. g=0.43)


The information on this label will help you identify how well your windows will perform the function of keeping the wind out, contain and conserve heat within you property during the winter, resist condensation, and contribute to improved sound insulation.


Looking out for a rating of A to C is the best kind of double glazed window you can invest for your home. If you need more information about it, make sure to speak with your chosen installer or supplier. This is one sure way of getting informed choices.

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