New DG windows and condensation INSIDE

Alias_Omega

We have this bad. The main bedroom window can be dripping in the morning which can be caused by

Drying clothes on radiators
Showering and leaving the door open when they have finished
Having a bath and leaving the door open when finished
Just breathing

Downstairs in the study, we get mould on the walls at skirting board level when people use the sofabed, and put there stuff down the sides. This stops the movement of air, and mould forms...we tell them...

It's just part of the house, were the same as you. We keep the windows closed as it's cold outside...when it's really bad, we pop the heating on for a bit, turn it off, then open all windows for the day..

elsien

paddy's_mum wrote: »

I have a Karcher window vac and every morning when I open my thick curtains and look at what the weather is doing (in the same breath as it were) I check if there is any/much condensation on the inside of the window.

If there is, I vac it up. Problem solved.

Are they effective for that? I've been contemplating getting one but wasn't sure how good they were in practice.

elsien

Loanranger wrote: »

Do you sleep with your windows open? If not, you need to do this. If you have at least a 7 tog duvet you will be warm enough in bed. I speak from experience.

I have a 13.5 tog and still freeze if the windows are open when it's minus outside. Think 7 tog is a bit optimistic for a lot of people.

thebaldwindowfitter

from what i am reading you have your heating throughout the day then in this room at least at night you turn the heating off and sleep in the room where as mentioned above we create vapour while asleep .may i suggest that you keep your heating on constant but turn it down rather than having it on timed for a few hours .You also state you have the vents open in a room which during the night is allowing more cold air into a room which isnt heated and people sleeping in it

Aylesbury_Duck

elsien wrote: »

Are they effective for that? I've been contemplating getting one but wasn't sure how good they were in practice.

Yes, very good. I got one a year ago to keep our shower enclosure clear of mould, hard water streaks, etc. It's brilliant. I haven't had to clean the grout or sealant since I started using it.

Loanranger

elsien wrote: »

I have a 13.5 tog and still freeze if the windows are open when it's minus outside. Think 7 tog is a bit optimistic for a lot of people.

I sleep with my window open and under a 7 tog duvet. It is warm enough. I have had a 13.5 tog duvet but discarded it.
If forecast is for temp to fall much below zero then I have a fleece type cover to pop on top.
If you suffer with condensation you need to sleep with your window open. It really isn't difficult.
I wonder why people ask for advice then don't like the answer!

paddy's_mum

elsien wrote: »

Are they effective for that? I've been contemplating getting one but wasn't sure how good they were in practice.

Yes, very. I recently lent mine to one of my daughters and in the expectation that I wasn't going to get it back any time soon, I bought a cheaper Vax replacement.

It wasn't anywhere near as good, as I found the rubber squeegee blade much more pliable than the Karcher one and it kept slipping off the UPVC window frame. I ended up mopping a percentage of the water by hand so nothing gained.

I returned it and got another Karcher.

PS for clarification - Vax as a brand name, vac as a process ie sucking it up!

We are a savvy family so if I tell you that I have one, Mum has one, two sisters have one, two daughters have one...:T

Could you perhaps borrow one from a friend and try it out in your own time before making the decision to invest in one?

elsien

Loanranger wrote: »

I sleep with my window open and under a 7 tog duvet. It is warm enough. I have had a 13.5 tog duvet but discarded it.
If forecast is for temp to fall much below zero then I have a fleece type cover to pop on top.
If you suffer with condensation you need to sleep with your window open. It really isn't difficult.
I wonder why people ask for advice then don't like the answer!

I find that even when sleeping with the window open I still get condensation. So if I'm going to get it anyway I might as well be warm.

TheCyclingProgrammer

Modern spec double glazing should be a lot more resistant to condensation issues due to their higher thermal performance compared to older glazing but if the window gets cold enough and the humidity in your home is high enough then you can still get condensation.

For example, we get quite a lot of condensation on our bedroom window in winter. Humidity isn’t excessively high, but obviously we breath out a lot of water during the night. The glazing unit is probably 15 years old so not up to modern standards. We also have plantation shutters which has the effect of insulating the glass from the heat in the room. On the plus side this helps keep some heat in but on the downside it means the glass gets very cold, hence the condensation.

We mitigate this but keeping the shutters louvres slightly open to allow some heat from the radiator below to reach the glass (like a chimney effect) and use a dehumidifier if humidity gets too high and it keeps condensation to a minimum.

On the flip side, our relatively new front and back doors have modern higher spec glass in them, as does our conservatory and we get little to no condensation on them (in fact modern glazing should usually have condensation on the outside as they should be much colder due to the reduced heat escaping from the house).

So, if you’re getting excess condensation on modern glazing that strongly suggests you have high humidity indoors. Do you have a humidity monitor? You can get one from Amazon fairly cheap. Do you have good ventilation in bathrooms? Do you dry clothes indoors? Could you use a dehumidifier?

Andrea15

thebaldwindowfitter wrote: »

from what i am reading you have your heating throughout the day then in this room at least at night you turn the heating off and sleep in the room where as mentioned above we create vapour while asleep .may i suggest that you keep your heating on constant but turn it down rather than having it on timed for a few hours .You also state you have the vents open in a room which during the night is allowing more cold air into a room which isnt heated and people sleeping in it

Well, actually in the bedroom the heating is hardly ever on (can't stand a warm bedroom). Interestingly, in my kids' bedroom they have ZERO condensation. They have a different window and three velux. The room is very warm and the heating there is virtually off. The room is in the newer part of the house whith better insulation throughutm, though.

TheCyclingProgrammer wrote: »

So, if you’re getting excess condensation on modern glazing that strongly suggests you have high humidity indoors. Do you have a humidity monitor? You can get one from Amazon fairly cheap. Do you have good ventilation in bathrooms? Do you dry clothes indoors? Could you use a dehumidifier?

Don't have a humidity monitor. I suppose we could investigate the matter and see if we get anyhwere,

Also, interesting about that Karcher thing. Never knoew such a thing existed...