BCO want "magic words" for UPVC windows
BCO wants some magic words in the spec to justify "how the windows
acheive U-value of what-ever-it-was". Will the phrase from screwfix description: "28mm Sealed Units with Pilkington 'K' glass" be sufficient, or do I need to say "filled with ..." etc ? He mentioned something about 19mm gas-filled. Is this another way of acheiving required U values ? Cheers, Simon. |
BCO want "magic words" for UPVC windows
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