Excessive condensation

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LydiaEdwardianHouse

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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
 
Trickle vents.
Air bricks.
Dehumidifiers do work but excess moisture will always be an issue in old buildings.

Keep breathing.
 
LydiaEdwardianHouse said:
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?
Click to expand...

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.
 
Harry Bloomfield said:
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.
Click to expand...
Is your house pre-war?
 
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?
 
LydiaEdwardianHouse said:
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?
Click to expand...

Maybe look for other sources of moisture then. I doubt blown glazing will make much difference to the insulation properties of the glazing.
 
LydiaEdwardianHouse said:
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
Click to expand...
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?
 
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?
 
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