You are reading a single comment by @Hovis and its replies.
Click here to read the full conversation.
-
all windows in our place were replaced for £5k, UPVC sash bays etc /csb
-
I like the slimness of alu, but not at the expense of a big hit in thermal efficiency.
Edit. Link for U-value info, not a recommendation.
https://www.aspirebifolds.co.uk/2018/03/what-are-typical-u-values-on-windows-and-doors/If your frames are in good condition, replacing the glass with Low-U units would be an improvement. However yours are probably only 16, 20 or 24mm thick, so not as efficient as the current standard double glazing at 28mm.
Triple glazing could be anything between 32 and 44mmPVC frames are typically more efficient than Alu, with the cheaper PVC windows performing as good as high end triple glazed Alu ones.
amey
user69121
@Hovis
Anyone know anything about windows? The double glazed units in our 30s semi are about 30 years old and on their last legs and I'd like to upgrade them with a significant gain in thermal efficiency in mind. They are two large bay windows that make up 80% of the exterior wall face of the rooms so how well they work thermally should hopefully make a big difference.
Alu or uPVC?
Double or triple?
Any recommendations for contractors?
I like the slimness of alu, but not at the expense of a big hit in thermal efficiency.
Any thoughts would be much appreciated.