What to look for when using 2nd hand upvc windows on extension and porch?

[nuzuki]

Morning all,
I see alot of used upvc windows in good condition. Would the older windows be upto the current regs? I understand it has to have a certain U value, 20mm gap between the glass and 4mm thickness if I understand correctly.
I'm building an extension classed as a summer room (posh conservatory) and a porch.
Any advice is greatly appreciated
Thanks

 

[noseall]

Morning all,
I see alot of used upvc windows in good condition. Would the older windows be upto the current regs? I understand it has to have a certain U value, 20mm gap between the glass and 4mm thickness if I understand correctly.
I'm building an extension classed as a summer room (posh conservatory) and a porch.
Any advice is greatly appreciated
Thanks

Toughened glass.
Low E glazing.
Escape sahes (habitable rooms).
Trickle vents.

 

[freddiemercurystwin]

The thing is with out a bit of blurb from the manufacturer stating they are what they are Mr BCO may not accept them anyway. It will be trying to prove their U value that scuppers you probably.

 

[nuzuki]

Thanks for the replies. Yes as I can't guarantee the spec it's best to buy new and save the hassle. It's a shame as there's alot of good used stuff about

 

[nuzuki]

Out of interest can anyone recommend any good places online that sell upvc windows?

 

[mrrusty]

All I can suggest is find your local glass and window supplier, write a spec for whatever you need and go to the trade counter and get a price. Most "trade" suppliers are also open to the public. 2 years ago I bought 4 windows for my garden room - 3 were about 1200 x 900 with an opener, the 4th just a fixed window. High spec glazing. all in, £720. OK, prob a tad more now, but hardly worth the hassle of looking for s/h.

a shout out for http://lostockhallglass.co.uk/

 

[stevie888]

Check round local suppliers for any mismeasures that they might be selling off if your sizes aren't critical.

For a porch or conservatory then safety glass where you need it will be all that's necessary. Check for small etched kitemark on glass.

 

[cdbe]

I'd be very reluctant to fit used, but I've fitted loads of miss-measured/new unused windows and doors. Most have still had the stickers on the units for BCO to take little interest in, although as above I hope he will be checking the bi-folds for safety glass.

Best one I got was a brand new, fully glazed miss-measured (they forgot the structural bay poles), 3 sided bay which will replace this rotten old timber one - 99p on eBay.