Should my new double glazing windows bend???

Furts

cjaxx77 wrote: »

He's just left. Told me its not unusual to have a flex in toughened glass which is used for the main panes. As a windows layman he could tell me anything!

I'm going to seek some further info to suppliment the useful info and advice you have all offered in this forum.

Many thanks to you all

Hi cjaxx77
Why are your windows toughened? This is not normal for normal bedroom windows. Are your windows toughened? - have you looked for the legal requirement to mark each pane of glass if it is toughened, look for a small sand blasted "T" or toughened mark in the corner. Please check on this.

I assume you have paid the company "Coral" They may manufacture, but this is unlikely - most companies buy in.

Confirm who is the manufacturer of the plastic profile? What name is on the plastic when you look on the closing edges of the window sashes?

Who is the manufacturer of the glazed units? You say you have a label. What name is on it?

This is important. If you have been dealing with a bunch of crooks there may still be technical support from either of these sources, if these are reputable.

Please come back with some information in order for people to try and assist you.

capeverde

Glass bends, to the uninitiated often alarmingly, for example if you carry a large patio door unit flat side up, it could quite easily bend over an inch in the middle. The frame helps support this though and given the normal tolerances you shouldn't really be seeing that much give, particularly one side of a sealed unit bending without the other.

spannerzone

Do you mean they bend inwards when pressing them or they're just slightly distorted looking all the time?

My last lot of double glazed windows had some slight distortion when viewed in a certain light, ie reflections bounced off them and weren't perfectly mirror like.

I've noticed many double glazed panels seem to suffer from this sort of slight uneveness, it never caused me any problems however.

cjaxx77

They bend when pressed in. I noticed when i was cleaning them, using a minimum amount of force. Its really disconcerting!!!

Both sides of the window bend with the same amount of flex.

cjaxx77

Im not sure which company they use for the windows. Ive had a look on the insides and outsides of the them but can find no clue as to who is the manufacturer.

There are no T's on the windows that bend however there are kite marks whic read

OAKLAND TOUGHENED
CMS MARK
BS EN 12150
COMPLIANT

The only panes that carry this mark are the lounge and bedroom which are the ones which bend. The back bedroom, kitchen and bathroom are smaller and although there is slight give, don't palpably bend inwards.

The sticker on the yet to be fitted fanlight reads Oakland Glass Ltd

greyteam1959

My windows are all large & all toughened glass & they do NOT flex at all.

cjaxx77

There has been a new development...our lounge window is now whistling in the wind!!!

We are now seriously considering stopping the rest of the installation to seek third party advice!!!

Furts

cjaxx77 wrote: »

Im not sure which company they use for the windows. Ive had a look on the insides and outsides of the them but can find no clue as to who is the manufacturer.

There are no T's on the windows that bend however there are kite marks whic read

OAKLAND TOUGHENED
CMS MARK
BS EN 12150
COMPLIANT

The only panes that carry this mark are the lounge and bedroom which are the ones which bend. The back bedroom, kitchen and bathroom are smaller and although there is slight give, don't palpably bend inwards.

The sticker on the yet to be fitted fanlight reads Oakland Glass Ltd

Doing a search on Oakland does not reveal a Kitemark for their products. It does reveal accreditation, suggesting (subject to reviewing the details) this is a reputable company. Certainly, there appears to be a large manufacturing facility.

My suggestion is this company does not warrant adverse publicity. Make contact, get a technical visit from product support - though there is nobody on the website with that role.

Technical support will not want to upset their customers - that is not you. But explain they are on a forum, they are being scrutinized, and if they perform this could gain them positive publicity.

Since you appear wary of the view given by the installer, I am suggesting this is the professional way forward.

Have a meeting at your home. Have an independent witness present. Request a response in writing from them.

Ask them who the profile manufacture is. Ask them who fabricated the windows. They will know.

Explain there are people on the forum who have knowledge, explain there are professionally qualified forum members who do post, and explain you are not to be taken advantage of.

capeverde

Regulations are that all glass below 800mm from floor level should be toughened. Also in areas like bathrooms where there is a slip hazard and in porchways. The fact the glass has been toughened is irrelevant to this issue. I spent 20 years in this industry and can say that once the glass is made up into a unit and glazed into a frame the amount of movement would be almost impossible to detect with the naked eye. I honestly cannot see this happening, nor can I see a reason for it. What is the size of the sealed unit we are discussing?

cjaxx77

The unit is 155(width) x 240(height).