Excessive condensation

Joined
2 Jan 2021
Messages
30
Reaction score
1
Country
United Kingdom
Hi all

We live in a semi detached Edwardian property with two large bay windows in the master bedroom and lounge.

In the master, no matter what we do we seem to get excessive condensation each morning. We have tried a dehumidifier (didn’t work) so am at a bit of a loss to what we could do.

We open the window in the day to allow ventilation, but realistically we can’t do that all night during winter. We also tried keeping the house the same temp all day and night last winter, again didn’t help and not something we can afford to do this year.

Today we have woken up and it’s bad but the house is 18.5 degrees.

Any advice or ideas? We do have a bit of blown glazing that needs replacing, could that cause condensation in all the windows as well as between the glass on that pane?

Downstairs bay has no issues whatsoever. None of the other windows in the house have an issue either.

Thanks
 
Sponsored Links
Joined
11 Nov 2020
Messages
2,228
Reaction score
272
Location
Middle Earth
Country
United Kingdom
Trickle vents.
Air bricks.
Dehumidifiers do work but excess moisture will always be an issue in old buildings.

Keep breathing.
 
Joined
30 Dec 2018
Messages
13,227
Reaction score
1,919
Country
United Kingdom
Today we have woken up and it’s bad but the house is 18.5 degrees.

Any advice or ideas? We do have a bit of blown glazing that needs replacing, could that cause condensation in all the windows as well as between the glass on that pane?

My house is showing exactly the same temperature this morning, 18.6C, with a recorded over night varying from 8 to 12C at the moment - but absolutely no condensation anywhere. Only if the outdoor drops to close to 0C, do I sometime see a little condensation along the lower inch of the DG. The difference is possibly ventilation....

I make a point of minimising moisture generation in the house and have installed extraction where it is unavoidable. Any moisture you generate in a house will to some extent be absorbed into the fabric, to be given out later. Bathrooms need extraction. Kitchens need extraction, and all cooking should be done with lids where ever possible. No drying of clothes in the house should be allowed, but having said that I do, using a line drying system, a fan and a plumbed in dehumidifier in a closed room.
 
Sponsored Links
Joined
11 Nov 2020
Messages
2,228
Reaction score
272
Location
Middle Earth
Country
United Kingdom
My house is showing exactly the same temperature this morning, 18.6C, with a recorded over night varying from 8 to 12C at the moment - but absolutely no condensation anywhere. Only if the outdoor drops to close to 0C, do I sometime see a little condensation along the lower inch of the DG. The difference is possibly ventilation....

I make a point of minimising moisture generation in the house and have installed extraction where it is unavoidable. Any moisture you generate in a house will to some extent be absorbed into the fabric, to be given out later. Bathrooms need extraction. Kitchens need extraction, and all cooking should be done with lids where ever possible. No drying of clothes in the house should be allowed, but having said that I do, using a line drying system, a fan and a plumbed in dehumidifier in a closed room.
Is your house pre-war?
 
Joined
2 Jan 2021
Messages
30
Reaction score
1
Country
United Kingdom
Thanks! Yes we are minimising water in house and have good extractor fans. V strange that nothing seems to help, IM hoping fixing the blown glazing might help?
 
Joined
30 Dec 2018
Messages
13,227
Reaction score
1,919
Country
United Kingdom
Thanks! Yes we are minimising water in house and have good extractor fans. V strange that nothing seems to help, IM hoping fixing the blown glazing might help?

Maybe look for other sources of moisture then. I doubt blown glazing will make much difference to the insulation properties of the glazing.
 

JohnD

T*ts like coconuts
Joined
15 Nov 2005
Messages
79,978
Reaction score
5,238
Location
South
Country
Cook Islands
Hi all

We live in a semi detached Edwardian property with two large bay windows in the master bedroom and lounge.

In the master, no matter what we do we seem to get excessive condensation each morning. We have tried a dehumidifier (didn’t work) so am at a bit of a loss to what we could do.

We open the window in the day to allow ventilation, but realistically we can’t do that all night during winter. We also tried keeping the house the same temp all day and night last winter, again didn’t help and not something we can afford to do this year.

Today we have woken up and it’s bad but the house is 18.5 degrees.

Any advice or ideas? We do have a bit of blown glazing that needs replacing, could that cause condensation in all the windows as well as between the glass on that pane?

Downstairs bay has no issues whatsoever. None of the other windows in the house have an issue either.

Thanks
Do you mean condensation on the window? Or one or more walls?

It it near to a source of water such as as bathroom or wet washing draped around? Water vapour is lighter than air so will rise through house, either up the stairwell or though ceilings with holes in them, especially downlighters.

The water might be coming from a plumbing leak such as a radiator pipe. Does your boiler have a pressure gzuge?

Does this happen worse after rainy weather?
 
Joined
14 Nov 2014
Messages
1,137
Reaction score
242
Country
United Kingdom
Blown glazing will not be effecting that amount of condensation.

Silly question , guessing two adults in the
Room, is the door kept open or shut overnight?
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Top