Are these good u values?
Also is there such a thing as u Values for doors?
Thanks
whats your wall construction???
you choice of window or door should be pro rata with your construction u values.....
This one always confuses me. Lets say you build a wall to current building regs i.e. 0.27 u-value. The VERY best windows will come in around 0.6 u-value which is considerably worse than the wall u-value. Yet people would say that you would pair that wall with a regular pvc type offering like any estate house e.g. u-value 1.5 - 2.0
It seems to be that once the wall u-value hits 0.2 and lower that people decide that the window spec becomes important. I've been absolutely guilty of this.
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