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Window Energy Ratings
From
October 1st 2010 new rules state that all replacement windows
should have a WER of at least a 'C' rating to be legal.
So what is a WER?
A WER (Window Energy Rating) is supposed to be a consumer-friendly
method of explaining the overall energy saving performance
of a window but to it isn't really that clear to many people
in the glazing industry
so
this
is all
you
really
need to know about the new Window Energy Ratings....
There are many grey areas as to how any specific A, B or
C rating is achieved. The rating is given to the window
frame and the actual glass combined so there is no such thing
as an A rated sealed unit or a B rated window frame. To manufacture
a glass sealed unit that should achieve at least a C rating
(when
accompanied
with the correct frame) the unit should be either:
• A gas filled unit with a metal
spacer bar made with a
soft
coat glass
• A
warm edge spacer bar unit made with energy saving glass
such as Pilkington K.
Read our Energy Saving
Options page to find out what options are avilable for
your sealed units
Back
to the Glassroom
To the fullest extent permitted by applicable
laws, Leadbitter Glass disclaim all liability for any error
in or omission from this website and for all consequences
of relying on it.
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