[aftab]

I was testing a hot wfp system on a friends house yesterday, when we finished it looked good happy days.  However as I went back around today I noticed that two of the double glased windows had blown.  ie they had a mist in them.  We definately didnt notice these two blown units the day before.  My question is that do u believe that the hot wfp system had anything to do with that.  And for future ref when doin a new clean would u ask bout blown units?  any advice on this subject would be greatly appreciated.

 

[paul13]

I wouldn't have the temp to hot

[niceandclean]

I was testing a hot wfp system on a friends house yesterday, when we finished it looked good happy days.  However as I went back around today I noticed that two of the double glased windows had blown.  ie they had a mist in them.  We definately didnt notice these two blown units the day before.  My question is that do u believe that the hot wfp system had anything to do with that.  And for future ref when doin a new clean would u ask bout blown units?  any advice on this subject would be greatly appreciated.

 

They would of already of been blown. The hot water just heats up the glass so as to cause the condensation between the panes. I bet if your friend looks tomorrow or even now the temp has dropped, they will look the same as before you had cleaned them.

[PoleKing]

You may have 'blown' them but it wasn't because you were using hot as for the long term.
With WFP you push harder on the glass than with trad.
Over time the sealant used to bind the 2 sheets of glass around the spacer will deteriorate.
Pushing harder in the glass exacerbates the process.
Most double glazed units are guaranteed for 10 years-the glass is fine, it's the sealant that fails-over time.
By pushing on the glass you may speed up the process. Marginally.
But if you have blown them, they were on their way out anyway.

[richard jagger]

There is nothing you could have done to have the seals go on the units. Only time or badly made units are to blame.

[Richard iSparkle]

There is nothing you could have done to have the seals go on the units. Only time or badly made units are to blame.

+1

[Ste M]

You may have 'blown' them but it wasn't because you were using hot as for the long term.
With WFP you push harder on the glass than with trad.
Over time the sealant used to bind the 2 sheets of glass around the spacer will deteriorate.
Pushing harder in the glass exacerbates the process.
Most double glazed units are guaranteed for 10 years-the glass is fine, it's the sealant that fails-over time.
By pushing on the glass you may speed up the process. Marginally.
But if you have blown them, they were on their way out anyway.

not always the case though, depends on if you know what your doing and also if you have the right tools for the job, there is no need to push heavily on the windows when wfp if you have a soft brush, the bristles are desgined to agitate the dirt and then you simply rinse of, however trad can be much harder and also the chemicals that are used will help deteriorate the seals around the window much quicker than any wfp user who knows what he is doing.

with regards to the op then id say it is probably condensation and was there before you cleaned and will be there again today

[PoleKing]

You may have 'blown' them but it wasn't because you were using hot as for the long term.
With WFP you push harder on the glass than with trad.
Over time the sealant used to bind the 2 sheets of glass around the spacer will deteriorate.
Pushing harder in the glass exacerbates the process.
Most double glazed units are guaranteed for 10 years-the glass is fine, it's the sealant that fails-over time.
By pushing on the glass you may speed up the process. Marginally.
But if you have blown them, they were on their way out anyway.

not always the case though, depends on if you know what your doing and also if you have the right tools for the job, there is no need to push heavily on the windows when wfp if you have a soft brush, the bristles are desgined to agitate the dirt and then you simply rinse of, however trad can be much harder and also the chemicals that are used will help deteriorate the seals around the window much quicker than any wfp user who knows what he is doing.

with regards to the op then id say it is probably condensation and was there before you cleaned and will be there again today

Agreed. Except the chemical (fairy?) when trading won't touch the sealant that holds the panes together.
It will hit the glazing bar and run off. Very little, if any, will reach the rebate.

And in theory one wouldn't push too hard on the glass WFP but in reality we all do. Put our backs into getting that stubborn bird turd off the glass every now & then.

[Ste M]

not if you use hot 

[aftab]

I will look at the two blown windows tomorrow and give an update, mayb the mist i refered to was condensation which wil dissapear. 

[niceandclean]

Why did the double glazed sealed unit break down:

There are a number of different glazing techniques for the fitting of double glazing sealed units into different frame materials like Wood, as opposed to either PVC-U or Aluminium frames, and there are some important Do's and Don'ts to ensure a reasonable life expectancy for the sealed unit.

Although there many reasons why a double glazed sealed unit may mist up inside when it has 'broken down' due to premature failure of the perimeter seal, the cause will either be down to how the sealed unit was made, how the framework it is fitted into was made, or how the double glazed sealed unit was fitted into the framework. On top of this environment conditions may play a part, such as wind or sonic loads, and possible exposure of the perimeter seal to aggressive chemicals such as those found in washing up liquid. This may all sound a bit complicated, but the cause of a premature failure of a double glazed sealed unit can usually be fairly easily traced once the sealed unit has been removed from it's frame.

 

[one eyed window cleaning]

You may have 'blown' them but it wasn't because you were using hot as for the long term.
With WFP you push harder on the glass than with trad.
Over time the sealant used to bind the 2 sheets of glass around the spacer will deteriorate.
Pushing harder in the glass exacerbates the process.
Most double glazed units are guaranteed for 10 years-the glass is fine, it's the sealant that fails-over time.
By pushing on the glass you may speed up the process. Marginally.
But if you have blown them, they were on their way out anyway.





Guaranteed for ten years! Sealed units ? Who dose that , number please ;-)

[Small but perfectley formed]

The blown unit are usually south SE facing these blow because they heat up and expand causing the foil at the bottom to fracture and allow ingress of water.

[Smudger]

Agree with Ste -  there is no need to put heavy pressure on the glass with wfp - with stubborn deposits like
snail trails the lighter the touch the quicker it comes off - 

with bird strike - soak it then scrub the frame etc... then rub over and it just falls off !!

In any event the units were probably blown you see condensation due to temp differences from the outside
to the inside

Darran

[PoleKing]

OEWC-I thought everyone did.
Certainly where I live now, Grantham Lincolnshire and where I was-Whitstable, Kent.

I had 2 go on my 8 year old conservatory last summer.
I had the paperwork. Made the call. Replaced within 3 weeks.

As you asked, it was a company called EYG. call them on: 01482 561101