Bi folding french doors??

We have a pair of UPVc patio doors into a conservatory (used to be patio). One of the jobs on my list to to change these doors for timber glased french doors. My wife has it in her head that to gain back space she wishes to have folding or consatina doors.
Am I right in thinking that these doors are only suitable for internal applications and are not available draught proof or suitable for a very cold conservatory that we do not wish to heat 24/7.

no you can get them, have a look at this link, they supply travis perkins

http://www.jeld-wen.co.uk/ranges_patiodoors.asp?category=3&material=14

Many thanks Thermo.

I searched high and low and saw many systems when i purchased a folding door last year. I went to an exhibition and saw many companies exhibiting this type of door especially the jeld-wen system mentioned above. In the end I purchased a door from a company called ID systems who's product looked to have a higher level of weather tightness and security the jeld wen door looked nice but i was made aware that it was solid timber which is prone to warping where as there are timber systems available which are made of something called laminate, which is sections of solid timber glued together not its not a veneer or plastic coating which i originally thought! I was told this method of preparing the timber ensured it was stable and also made the frames nice and slim. I would certainly recommend to see the various bifolds before commiting!

www.i-d-systems.co.uk

compositedoors said:

I think you have to buy uPVC door because its best door regarding heating problem. there is one my post you can enjoy it.

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Rubbish.

And plastic can be a poorer performer than other systems for other reasons too