The following images are from a householder who has recently had A Rated Windows installed.
The glass combination is low iron glass, soft coat, argon gas and warm edge spacer. As you can see there is condensation (moisture) appearing on the outer pane of glass, which has started appearing on cold mornings, and clears up within a couple of hours.
The windows previously did not get any moisture appearing externally, when Low E glass was installed.
It says to me that the units are working so effectively that warm air from the inside of a house, is not getting to the outer pane. In other words, the windows are performing extremely well at cutting out heat loss.
But, how does an installation company deal with customers who find this ‘feature’ unacceptable?
On a positive note, the householder has noticed a noticeable difference to the temperature of the home, and a massive difference to the amount of natural light in their rooms.
Tags: A Rated Windows, condensation outside of glass, steamy windows
Thanks RCG and others for putting my mind at rest regarding the external condensation I am experiencing on my newly fitted A rated windows. Thanks also to Joan and Robert for giving me a laugh at your petty-mindedness – I feel sorry for your builders.
and now may we start the debate of what triple glazing is going to cause
regards external condensation, having spoken to people within the industry this is going to make the problem alot worse.
would people who have external condensation please state whether the windows that suffer are north / north east facing and also do you have grass or stone /gravel paving infront of the windows which suffer
craig
This phenomenen has being recognised for many years.especially in germant and other parts of europe where very efficient double glazed units create this effect.
But the effect only happens a few times a year.Noteably when weather conditions are changing due to atmospheric pressure,temperature change and moisture levels.With a combination of these external fogging of the glass occurs.It is going to be the norm.
Martin