Hi Guys
Our builder appears to have dropped the ball when building our green oak framed extension.
Long story short.. the architect specified triple glazing, however I suspect that the builder ordered the frame to take double glazing. By the time this mistake was noticed the frame was built. Sadly the specifications didn’t mention the thickness of the sealed units, only that they should meet building regs and be better than U 1.6
The builder has installed 24mm thick triple glazed units, which look very thin compared with other triple glazing we have in the house. I know that the units have low E glass, however I can’t tell if they are gas filled.
I’ve asked the builder to provide evidence of the U value, but so far he has failed to do so.
To add to the problem, he fitted the sealed units into simple oak frames which are tightly fitted into the green oak frame. Over time the oak has moved and there are now gaps around the window frames which let in draughts and rain.
Any idea how I can find out what the U value of the sealed units might be?
If I can prove that the sealed units (and their frames) are not fit for purpose then I can reject them