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lot of condensation in victorian house draughty windows

(13 Posts)
cestlavielife Tue 04-Nov-14 15:32:00

autumn comes and dripping windows now in the mornings - there is plenty of air flowing thru the large gaps single glaze sash windows but large amounts of condensation - what can I do? I want to seal the gaps for winter for warmth but wont this make condensation worse?

Sallyingforth Tue 04-Nov-14 16:33:20

Something unusual happening here. Normally condensation is associated with lack of ventilation and you'd be advised to increase the airflow.
Where is the damp coming from? Are you in a basement with rising damp? Do you have lots of baths or showers in a room without ventilation? What sort of heating do you have?

May09Bump Tue 04-Nov-14 16:43:33

Same here - our causes are ventilation in shower room is awful and we started to dry clothing on radiators.

We are now just using a condenser dryer and opening the windows in the bathroom after shower even in the winter. It's better, but not resolved - might invest in a dehumidifier.

We are renting an Edwardian house with similar windows to yours, we did it to decide if we wanted to buy period. Our conclusion is that we would but would need a sizeable cash amount to replace windows and install good ventilation. Or buy a newer build!

Billingsgatedoxy Tue 04-Nov-14 16:44:48

Cold air outside, warm air inside = condensation on single glazed windows. I also have this.

Best thing to do is reduce the humidity inside as then less moisture to condense. Buy a de-humidifier and don't dry clothes on radiators etc - also warm air holds more moisture so if you keep your heating on 24 hours you will get less condensation.

Alternatively, you can get some cling film type stuff from DIY shops which act as double glazing and vastly reduce condensation as you don't have the warm/cold air on same glass problem. The only thing to be wary of is that it looks ugly, can prevent you opening the window and if your paintwork is bad/old, it can peel off with the tape when you remove it in spring.

Bambi75 Tue 04-Nov-14 17:09:04

Exactly the same problem - bought 2 humidifiers off amazon this morning in the hope they will do the trick

theposterformallyknownas Tue 04-Nov-14 17:21:33

We open all windows and doors for about an hour every morning, even when we are freezing.
Then close them and the house warms up with heating really quickly.
We rotate rooms with a dehumidifier.
So daytime a room upstairs and night time a room downstairs until all rooms are done. Then we begin again next week or week after depending on how bad it gets.
It was worse when we let them put free cavity wall insulation in the house, they shouldn't do it on old houses as air needs to circulate. It made all our walls damp and we had to have plaster removed again
Still prefer old houses with character though grin

bracken101 Tue 04-Nov-14 17:54:35

Karcher window vac is amazing!

whats4teamum Tue 04-Nov-14 20:56:51

How often do you use the window vac? Does it reduce condensation over time?

cestlavielife Tue 04-Nov-14 23:06:41

Windowless interior bathroom probably doesn't help. But not much can do an bout that it has a fan but that just circulates the moisture ?
Is high ceilinged Basement.
Trying dehumidifier....

Sallyingforth Tue 04-Nov-14 23:14:48

Your "windowless interior bathroom" must have a suitable extractor fan venting to the outside. If it doesn't then it won't conform to the building regulations. A recirculating fan is no good at all.

Do you own the property or rent it? The landlord or HA must ensure that it meets the regulations.

cestlavielife Wed 05-Nov-14 10:35:02

rent - will check the bathroom fan again for evidence of any ducts to outside...is that a retrofitting regulation?

Sallyingforth Wed 05-Nov-14 11:51:18

If the room was originally a bathroom without a fan then it is not compulsory to fit one (but still very good sense to do it).
If it was converted into a bathroom then an extractor should have been fitted when the work was done. The regulation is here (check Q4)
www.planningportal.gov.uk/buildingregulations/approveddocuments/partf/faqs

bracken101 Fri 07-Nov-14 20:12:49

The window vac doesn't reduce the condensation, it's just a quick and easy way of getting rid of it. Our last cottage was a really old cottage with stone million windows that didn't all open, and the condensation could he so bad it wouldn't disappear at all and would collect on the windowsills. I used to spend ages with towels trying to soak it up every day. The vac saved me so much time and got rid of more of the condensation iyswim.

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