'Bloom' on new DG windows
Discussion
I had Residence 9 windows installed about 5 months ago. After installation I noticed that some windows had what looked like misting on some panels.
These were replaced but other windows appear to be developing the same problem.
Photo of one attached.
Does anyone know what could be causing this problem?
These were replaced but other windows appear to be developing the same problem.
Photo of one attached.
Does anyone know what could be causing this problem?
jmn said:
I had Residence 9 windows installed about 5 months ago. After installation I noticed that some windows had what looked like misting on some panels.
These were replaced but other windows appear to be developing the same problem.
Photo of one attached.
Does anyone know what could be causing this problem?
Can you confirm that the misting is not on the outside as this is common with new highly thermally insulated units generally known as the dew effect. The inside pane of glass has a thermal coating which, along with the argon gas fill prevents any of the heat from inside being transmitted to the outer glass leaf resulting in that glass being very cold overnight. In certain climatic conditions, no breeze, no sun on the glass early in the morning, any moisture in the air condenses on the coldest surface available (ie the outside of the outer pane of glass). These were replaced but other windows appear to be developing the same problem.
Photo of one attached.
Does anyone know what could be causing this problem?
Alternatively, sometimes, when the sun shines from a certain angle, the thermal coating spray on the inside of the glass can result in a 'sandy' looking appearance.
If this is not the case, and there is moisture inside the unit then they have failed and would need to be replaced.
Edited by monty999 on Wednesday 22 April 22:29
An update. FENSA offered a free inspection and their rep inspected the windows on Friday.
He noted 22 failed units including one where the internal glass had been fitted the wrong way round in the sealed unit.
He has condemned the entire installation as it cannot meet thermal efficiency requirements with so many failed units.
The units which have failed are those which are most exposed to direct sunlight.
My worry is that the others will fail over time.
He noted 22 failed units including one where the internal glass had been fitted the wrong way round in the sealed unit.
He has condemned the entire installation as it cannot meet thermal efficiency requirements with so many failed units.
The units which have failed are those which are most exposed to direct sunlight.
My worry is that the others will fail over time.
jmn said:
An update. FENSA offered a free inspection and their rep inspected the windows on Friday.
He noted 22 failed units including one where the internal glass had been fitted the wrong way round in the sealed unit.
He has condemned the entire installation as it cannot meet thermal efficiency requirements with so many failed units.
What happens now? Does FENSA arrange for free replacements to be fitted?He noted 22 failed units including one where the internal glass had been fitted the wrong way round in the sealed unit.
He has condemned the entire installation as it cannot meet thermal efficiency requirements with so many failed units.
jmn said:
The original installer has to obtain new units from the original supplier and then fit them. I believe that FENSA then have to inspect again. Glad I used a FENSA accredited company.
Perhaps the manufacturers should be 'accredited' too... the fitter probably couldn't have told the units were duff when they fitted them.jmn said:
As I understand it Residence 9 is a design of window that is manufactured by various companies in the UK. It looks like I ended up with one of the less competent companies...
Ah. Do they come with the sealed units installed, or do the installers put those in? Sometimes a tiny little chip at the edge of a pane can end up with the unit failing. My place was done 18 or so years ago (including 2 bays), and the hinges on a couple are getting a bit dodgy, but I've never had a unit go yet! Now of course I'll wake up to a house full of misted panes in the morning, jinxed myself rightly there.
guindilias said:
Is that not pretty rubbish ....
Really bad isnt it!My parents have 32yo DG units in wooden frame, six individual panes per window, half in opening lights, around 16windows in total (so nearly 100 panes) and they have had one failure to date, a couple years ago, in a south facing window where the frame was a bit compromised, which is more more on the money. The DG units in our hateful uPVC monsters are also around the same age, and appear to match and all be original, certainly no failures in the two years we have been here.
As said, the concern is what happens with the ones which have not yet failed. Depending on the ratio of failed to not, and the warranty period, I would certainly be leaning towards total replacment.
Daniel
Fensa is up to ten years, isn't it? Or are they one of those lot who like to wriggle out of things as much as possible? But that many failed units in that time period is worrying - the OP might spend the next ten years constantly on the phone to the installer - and they'll probably go under and re-surface as another glazing installer under a different name.
jmn said:
As I understand it Residence 9 is a design of window that is manufactured by various companies in the UK. It looks like I ended up with one of the less competent companies...
New here, and no idea how it works - but wondered if you had any more info - were you successful getting the windows replaced? We had Residence 9 installed 2019, had to have lot of the units replaced three years ago (covered by the warranty), and now have masses more that have blown - installer is saying the glass units are now out of warranty, so we have a fight on our hands. Lots of those gone are on the sunny side. Any advice would be warmly welcomed!The headline 10 year warranty that is usually provided doesn't necessarily cover everything. As they say the devil is in the detail. What does your warranty show in the small print around what is covered and for what period. As an example our house install is 10 on everything bar handles and hinges. Our garage window and door (cheap) install was 10 on frames, 5 on sealed units and 3 on everything else.
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