Looking for cheap, reliable patio doors (2 sets) for new extension

Doozergirl

ytfcmad wrote: »

I know for a fact my post was both educated and informative, yours as i said is complete rubbish.
I work for a company that designs and sell's the materials/profiles used to make Bifolds, Patio's and doors (among other things) to the industry (but not the company in your link) and is also the biggest in the world in this particular medium, an international brand.

And your experience is?

17 years in the trade, knowing what 'cheap' really means when it comes to items with moving parts, having bifolds
myself in the past and finding them an annoyance, and like DRP, a 100% hit rate on friends with bifolds and problems. Posts on here within the last few days about drafts. A poor record of being able to stand up to airtightness tests to enable them to be put in passive houses.l - ie. to be highly energy efficient.

You may be educated and informed, but that does not make your contribution educational or informative. If you want to influence someone, you do it in such a way that they can empathise with or form a respect for your opinion. Rocking up later to say that you have a non-descript role for a massive company doesn't qualify you to 'rubbish' others educated opinions. Post to help, not to fuel your ego.

I was quite specific that my personal opinion was exactly that. And shared by others, apparantly.

Doozergirl

ytfcmad wrote: »

That will be down to either bad fabrication or bad fitting.
During the design stage with all of this type of product they are tested for wind, air and water and each is given a pascal number, the higher the better.
Bifolds are a little harder to fit than sliders but they are pretty much patios with hinges, no matter what you have if it's been made badly or fitted badly you will get a problem.



Other things don't help, low threshold in exposed area's and open in (lower water ingress tolerance) don't help.
You will also find that the hardware used by a brand is used across the whole range, roller wheels, shoot bolts, hinges, locks etc. The profiles are basically the same too as they need to match up as near as possible

See, you can do it!

ytfcmad

Doozergirl wrote: »

17 years in the trade, knowing what 'cheap' really means when it comes to items with moving parts, having bifolds
myself in the past and finding them an annoyance, and like DRP, a 100% hit rate on friends with bifolds and problems. Posts on here within the last few days about drafts. A poor record of being able to stand up to airtightness tests to enable them to be put in passive houses.l - ie. to be highly energy efficient.

You may be educated and informed, but that does not make your contribution educational or informative. If you want to influence someone, you do it in such a way that they can empathise with or form a respect for your opinion. Rocking up later to say that you have a non-descript role for a massive company doesn't qualify you to 'rubbish' others educated opinions. Post to help, not to fuel your ego.

I was quite specific that my personal opinion was exactly that. And shared by others, apparantly.

All the above is down to poor fabrication/installation, a 100% hit rate suggest's a poor choice in supplier. Cant see how you can find them an annoyance, why have them in the first place?
Where they PVC?

I'm not worried about influencing people.

wealdroam

ytfcmad wrote: »

I'm not worried about influencing people.

Probably just as well.

ytfcmad

wealdroam wrote: »

Probably just as well.

I see you post rubbish on most threads so why not this one too.

You appear to be an expert on everything from Lead poisoning, tumble dryers to workers rights etc etc etc.

By rubbish what i mean is opinions are one thing (we all have them) but so much duff info is dished out on here by those that have no expertise in any given field (or the field the OP needs advice in).
People on here actually dish out info that will cost others money rather than save them money because they only think they know what they are talking about.
At least on the Mortgage thread and a few others you have to disclose if you are a financial adviser for example, this at least gives those on that forum a modicum of opportunity to sort the wheat from the chaff.

Doozergirl

Trollololololl!

Smiley_Dan

It's pretty well agreed amongst people involved in high performance building that bi-fold doors soon lose their air tightness. It's just the geometries and forces that work on the doors eventually pull them out of line.

There are no Passivhaus certified bi-fold doors AFAIK. Not that the OP has a Passivhaus, but that's normally a good indication that this type of product isn't going to cut the mustard.

The best sort of patio door for air tightness is a french door. Sliding doors are ok, but not great.

Material wise, uPVC simply should not be used in buildings imo. Timber or alu (or ideally both, alu on the outside).

vansboy

When I did my 'BIG' project, I had an opening 5m wide to put doors in.

I thought that the bi-fold would have potential seal problems, as well as looking very nice when all open, but actually not so good, when closed.

So I chose 4 panels, centre two sliding, upvc, from Angian windows (who many have different opinions on) which looked good and DID leak, possibly not helped by the fact this was a timber framed extension, upstairs above a suspended floor. But their service back up, was excellent, due to the skills and patience of the guy who came several times to sort.

Very good value too, beating local and 'cheap' products easily.

As for anything Doozergirl says....LISTEN TOO HER!! She knows her stuff.

VB

ytfcmad

Doozergirl wrote: »

Trollololololl!

yes, you probably are.

Davesnave

Smiley_Dan wrote: »

Material wise, uPVC simply should not be used in buildings imo. Timber or alu (or ideally both, alu on the outside).

Is that for environmental reasons, or because you feel it's inherently not fit for purpose?

Way back in the mists of time, around 1984, an old lady fitted UPVC windows in a semi-dee. Someone else then bought the house and added a few more. We bought the house from them, completing an extension in 1990, adding yet more UPVC windows.

We were there until 2009 and all the windows were fine. We had one stay break in 21 years. Last time I looked, the old lady's windows were still there.