No Need To Have A WER
The following letter has been sent to FENSA installers (click on the link): FENSA August2010 The key message is that there is now a very easy way for installers to comply from the 1st October as follows:
Compliance Against a Minimum U Value a) Simple Method If you are installing a PVC or a timber and the frame is fitted with sealed units which make use of soft-coat Low E Glass, warm edge spacer (minimum 16mm) and 90% argon gas, Then FENSA will consider without further evidence that the U value of 1.6 has been achieved i.e there will be no need to provide further evidence to the consumer or to the FENSA inspector, providing there is no evidence to suggest that our assumption is incorrect. (In timber windows the depth of the frame from front to back must be a minimum of 70mm).
So, basically, all the companies who couldn’t be bothered to invest in Window Energy Ratings now have an easy way of complying.
