Double Glazed Windows

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Window Energy Ratings Requirements

 

From 1st October 2010 the new standard for domestic replacement windows will be:

England & Wales

Either an energy rating of C or a whole window U-value of 1.6 W/m2K

Replacement doors, a U-value of 1.8 W/m2K

Scotland

Either an energy rating of C or a whole window U-value of 1.6 W/m2K

Replacement doors, a U-value of 1.6 W/m2K

To install energy rates windows, the supplier/fabricators need to register their company and windows with one of the approved Window Energy rating Schemes as detailed below in order to comply with the regulations:  If the company and/or window is not registered, it can only be sold and install windows with a U-value.

BFRC (British Fenestration Rating Council)

www.bfrc.org/

BSI (British Standards Institution)

http://www.bsigroup.com/en/ProductServices/energykitemark/WER/

Certass (Certification and Self Assessment)

www.certass.co.uk

Network VEKA

www.networkveka.co.uk

 

VEKA fabricators can work out which combinations of frame/glazing they wish to register using the WER Calculator. 

Contact VEKA’s Technical Department to request a copy of the Calculator.