condensation with double glazing

[houmousandcarrotsandwich]

Moved house in December & having issues with condensation in the mornings on double glazed windows.
Had double glazing in old house, but didn't have this issue.
When we first moved in there were gaps between the windows and the window ledges, like they had forgot to seal them in (house is 8 years old by the way, independantly built). I thought this was the cause, so sealed them myself. But its still happening.

I find I'm having to clean them once or twice a week to stop mould forming.

Any ideas Please!!!

What is your humidity level like in your house. If there's humidity it will condense on the colder windows - higher humidity=greater condesation. We have struggled in this house to keep the humidity anywhere close to 50% and it usually sits nearer 70 (should be 30-50%).

Have a good think about sources of humidity and how you could minimise them - drying washing on radiators, cooking and showering without an extractor fan or door shut/window open are the main culprits. We also had a large underfloor void that at times gathered standing water - increasing ventilation under the house and providing a soak away for the water also helped.

Do you have cavity wall insulation. Ours and neighbours on both sides have been done. Our neighbours say they had more problems with damp after it had been done.

Yes walls are insulated. Cant say cause much humidity, but helped me think about the cause.

Anything I can do to reduce humidity?

Warmth and fresh air will prevent condensation.

Do you have trickle vents in your windows which can be opened? Your best bet might be to install a mechanical ventilation system. A joiner can fit the vent in a central place like landing ceiling. The systems can run of a lighting circuit in your attic so you might not need any electric woek done. It needs emptied about once a year and costs pennies to run. Try googling 'nuaire' think thats what rs is called.

• ventilate - open all windows every morning for 10 min or so to get rid of the night*s condensation. repeat in the evening when you come home from work and just before you go to bed.
• keep the bathroom door closed and extractor fans on for a while after you have had a bath or shower.

try not to dry any laundry inside. if you do get an dehumidifier.

• wipe the moisture off the windows in the morning with an old towel to prevent mould.
• heat (heating is much more efficient in a well ventilated house because dry air heats more quickly than damp air)

Am i wrong in thinking if you get condensation between the glass they are got working properly and in fact failing? Im sure i heard that somewhere

if the windows "go blind" e.g. condensation between the glass, they are broken and need to be replaced.

Thanks everyone, def look into nuair

It all depnds on the equality of the windows too - if you have inert gas between the layers of glass (they usually use Argon) then this acts as better insulation than a vacuum (apparently). When there are extremes of temperature then even dg windows can get condensation.

I had this problem for years, especially when it was cold and if i was drying washing in the airing cupboard - the windows would be streaming in the morning. Developed a routine of drying them and opening the vents at the top while i was out at work (came back to a cold house mind!)

Got some A rated windows when needed a new patio door and decided to replace the lot and now havent had condensation in ages. Theres some more info on how it works at [url=www.conservatoriesincornwall.com/double-glazing.html]double glazing Cornwall[/url]

HTH x

It all depnds on the equality of the windows too - if you have inert gas between the layers of glass (they usually use Argon) then this acts as better insulation than a vacuum (apparently). When there are extremes of temperature then even dg windows can get condensation.

I had this problem for years, especially when it was cold and if i was drying washing in the airing cupboard - the windows would be streaming in the morning. Developed a routine of drying them and opening the vents at the top while i was out at work (came back to a cold house mind!)

Got some A rated windows when needed a new patio door and decided to replace the lot and now havent had condensation in ages. Theres some more info on how it works at double glazing Cornwall

HTH x

we had problems like this after cavity wall insulation was fitted and ended with mould growing round windows. We bought a dehumidifer (dd calls it a humdefy-er) and the house feels completely different; no condensation and gets the washing dry as well. I can recommend the Delonghi dem10 one

I agree with previous posters, ventilation is really important.The bloke who fitted aour heating told me that these days our homes are sometimes over insulated. Loft insulation, cavity wall insulation, double glazing and draught excluders mean that that there is nowhere for damp air to go.
I have a similar problem but find that leaving the bedroom windows just open overnight and in the bathroom when showering makes a big difference. Although I live in a tiny cottage I am lucky enough to have a cellar where I do the washing/drying so the steam from that doesn't cause any problems upstairs.
I hope you get it sorted