What is an 'A' Rated Window

Background – The WER  ( window energy rated ) scheme came into being October 2010 – this was meant to give clarity to consumers to choose windows using the familiar rainbow energy efficiency label

Windows can pass the FENSA test by either using a window that has been already certified on the WER scheme ( this is the vast majority of windows )  OR the window can be calculated using U vales – a window must have a U value of 1.6 or less ( remember lower is best )

The minimum compliance for a new window from October 2010 is a “C” rated window – although the majority of firms offer an “A” rated as well.

To see the difference between A and C rated windows you can go to the GGF website and click on the carbon calculator . The difference by the way is not very much.

If you go to our website you can see the make up of a typical “A” or “C” rated windows – but each window manufacturer is slightly different

Double Glazing Maintenance

If anybody says the windows and doors are maintenance free then most probably they do not know the industry well.

Here are a few guidelines for keeping your windows in tip top shape

Frames – wash with hot soapy water together then again with a PVCu cleaner you could buy from the sheds – try not to use abrasive cleaners as this will scratch the frame

Gearing – the sliding bolt method of locking ( called an espagnolette ) is always the achilles heel of any window or door  – these need to be lubricated with oil ( not WD40 ) every 6 months – we always say when the clocks change – this will stop them seizing up  - as rule if it moves oil it.

The same applies to PVCu front doors – also put a bit of oil on the key to lubricate the inside of the cylinder

When oiling a door always put a rag on the floor to catch the drips

On a sliding patio door always oil the rollers as well as the lock