Condensation on windows in one room only

becciboop

Right... This is really bad now! Wake up every morning to a soaking wet window and a wet wall underneath the window we keep one window slightly open in the night and draw back the blinds and close the curtains but leave a slight gap in the curtains for the air. I tried a moisture trap and it did collect water but didn't make much of a difference really. Really want to cure this and not just treat it. We don't dry clothes in the room or anything so I just don't know what this is all about. It gets worse when it's freezing outside but I've never seen condensation like it, I've never lived anywhere where the window gets covered in water in the bedroom. It's really getting me down cleaning the window and wall every morning is ridiculous. I'm worried about the effect on the wall as well. Do you think an air brick would solve it? We leave the door open of a day and it clears up by the time we are home from work.

cyclonebri1

The problem is even if you fitted new double glazing, the amount of water vapour formed will condensate somewhere, if it does it on the walls you are in worse trouble, at least on the windows it can be collected.

Couple of points;

I'd suggest you ensure the windows are left on the vent position when ever the house isn't heated ie all day.

Ensure you remove all the condensation collected it will simply evaporate and reform later if you don't.

Have you got solid walls or cavity, penetrating damp from the outside wall could be the issue as this will evaporate to the inside then reform as condensation on the windows.

I strongly recommend the Karcher device I mentioned earlier, really effective for clean up but of course not a cure.

becciboop

cyclonebri1 wrote: »

The problem is even if you fitted new double glazing, the amount of water vapour formed will condensate somewhere, if it does it on the walls you are in worse trouble, at least on the windows it can be collected.

Couple of points;

I'd suggest you ensure the windows are left on the vent position when ever the house isn't heated ie all day.

Ensure you remove all the condensation collected it will simply evaporate and reform later if you don't.

Have you got solid walls or cavity, penetrating damp from the outside wall could be the issue as this will evaporate to the inside then reform as condensation on the windows.

I strongly recommend the Karcher device I mentioned earlier, really effective for clean up but of course not a cure.

I wipe it down with a towel at the moment, so I will need to get the device you are talking about.
We leave the window on the vent all day most days but my partner hates doing it as its so cold in there when we get home. We have solid walls I think, we checked the outside of the property and all looks ok, no signs of damp coming through. It only happens in the morning when we get up, then at night around 7pm a bit of condensation collects on the bottom of the window but not on the wall, its not much and doesnt bother me, just when we get up of a morning its covered in water! Awful...

cyclonebri1

Too much moisture going in

Too little ventilation

Too little heating


Sorry but it comes down to 1 or more of them, I don't thing anything further can be added by internet advice.

leveller2911

How old is the double glazing and what thickness are the units?

Are the windows Upvc or timber.If they are timber I would look into getting a carpenter in and see if its possible to router out the sashes to allow for thicker double glazed sealed units(4-10-4).

Low E glass has a coating on the inside pane which does help with condensation.The coating allows the heat fron the sun in but less heat loss at night.

You may still get a small amount of condensation on top of the bottom rail but it is minimal. You are doing the right thing by airing the room daily but you shouldn't need to leave the windows open all day. It may be an idea to hire a moisture meter and check the wall around the window.If it is damp then you can ignore the window as being the main problem.

cyclonebri1

leveller2911 wrote: »

How old is the double glazing and what thickness are the units?

Are the windows Upvc or timber.If they are timber I would look into getting a carpenter in and see if its possible to router out the sashes to allow for thicker double glazed sealed units(4-10-4).

Low E glass has a coating on the inside pane which does help with condensation.The coating allows the heat fron the sun in but less heat loss at night.

You may still get a small amount of condensation on top of the bottom rail but it is minimal. You are doing the right thing by airing the room daily but you shouldn't need to leave the windows open all day. It may be an idea to hire a moisture meter and check the wall around the window.If it is damp then you can ignore the window as being the main problem.

I think this is the area that most folks get wrong, the window is simply the collector of condensation, and regardless of level if insulation, ie, thickness of glass and glass type, is almost always likely to be the coldest spot in any room.

I think there is a penetrating damp issue here, quick check with a damp meter when the room is warmed up wouldn't go amiss;)