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Window Energy Ratings (WER's)

ALUK Premium Plus A Rated Aluminium Windows

Since the changes to Part L of the Building Regulations in October 2010 there is a new method of complying to the building regulations. Part L of the building regulations (Conservation of fuel and power) is the area of the Building Regulations that covers thermal efficiency and energy efficiency. Previous to these changes, in order to get windows and doors to comply you needed to achieve a good overall U-value or specify a sealed unit with a centre pane U-value of 1.2 or less. The lower the U-value the less heat is lost through your windows.

Complying by simply specifying a sealed unit with a U-value of 1.2 has since been scrapped and replaced with the Window Energy Rating Scheme. The aim was for the WER to simplify, for consumers, the more complicated values for thermal efficiency, solar gain and air leakage into one basic A-G rating for overall energy efficiency.

Durations A Rated Windows

Many companies claim to have ‘A’ Rated Windows, always ask to see a WER rating scheme certificate or simulation certificates. Click to see our BSI certificate.

Duration Windows has been fully certified by BSI and fully registered with the British Fensestration Ratings Council (BFRC) in respect of the Window Energy Rating Group Scheme. The BFRC Scheme is the UK's national system for rating the energy efficiency of windows and is recognised within the Building Regulations as a method to show compliance for your replacement windows installation.

The British Standards Institute or BSI is the approved independent agency that is responsible for auditing our manufacturing process and window systems. They have to ensure that we are in a position to fabricate and provide customers with a product, which is compliant in the respect of Window Energy Rating Group scheme.

If you wish to find out more information or wish to enquire about our Premium Plus ‘A’ Rated Windows, please don’t hesitate to contact us.

Aluminium A Rated Windows Ordinary PVCu
Window
Awarded ‘A’ rating for energy efficiency Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC
Around a 10% reduction in heating bills Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC
Increase in comfort due to less heat loss Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC
Thin slim-line frame Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC
Recyclable indefinitely Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC
Built to last Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC
Resistant to corrosion Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC
Low maintenance Aluminium Windows compared to uPVC Aluminium Windows compared to uPVC

Trade Supplier of ALUK products Smarts Systems approved fabricator. We are the largest supplier of Smart products in the UK. BFRC British Fenestration Rating Council - under the Window Energy Rating Group Scheme We are CE Marking complient