Property ventilation

Ybe

Do all properties including modern ones with mechanical ventilation require window opening and wiping off condensation from windows in the mornings? 

DE_612183

Mine has gone a little vent in the uPVC frame - it's a 2018 built property.

EssexHebridean

We get a tiny line of condensation along the bottom of the bedroom windows, and the same in the bathroom (No trickle vents in our windows). The bathroom window gets 10 minutes open after we shower, and the extractor run during the shower and for 20 minutes or so afterwards, and I throw the other upstairs windows open for a while any time the weather allows for it (ie it's dry and not freezing cold!). No other rooms are affected at all though so in our house it does seem to simply be the moisture produced by breathing overnight, as you might expect. 

user1977

Ideally they shouldn't of course, but will vary a lot depending on how much water vapour you're producing, outside temperature, rate of ventilation, etc.

Ybe

user1977 said:

Ideally they shouldn't of course, but will vary a lot depending on how much water vapour you're producing, outside temperature, rate of ventilation, etc.

So newer properties generally get Less condensation? 

FreeBear

Ybe said:

Do all properties including modern ones with mechanical ventilation require window opening and wiping off condensation from windows in the mornings? 

No.

Late 1920s semi here. No mechanical ventilation apart from an extractor over the hob in the kitchen. Windows rarely opened, even in the bathroom (no trickle vents either). The only time I see condensation on the windows is on particularly cold & frosty mornings, and even then, it is just a little bit at the bottom of the glass.

I might get the kitchen windows steaming up a little when doing the dishes, but it clears fairly quickly.

Albermarle

FreeBear said:

Ybe said:

Do all properties including modern ones with mechanical ventilation require window opening and wiping off condensation from windows in the mornings? 

No.

Late 1920s semi here. No mechanical ventilation apart from an extractor over the hob in the kitchen. Windows rarely opened, even in the bathroom (no trickle vents either). The only time I see condensation on the windows is on particularly cold & frosty mornings, and even then, it is just a little bit at the bottom of the glass.

I might get the kitchen windows steaming up a little when doing the dishes, but it clears fairly quickly.

Similar to above. Late 20's semi. Only real issue is in a small bathroom in the loft conversion after a shower at this time of year. The window needs a wipe and left open for a while.
Otherwise only some very mild 'steaming up' in main bathroom, and occasionally in the kitchen. 

Older houses tend to be a bit more draughty, taller ceilings , maybe an open fire etc  which cuts condensation , if not your heating bills !

RelievedSheff

We don't tend to get much if any condensation on our windows in our 2019 house. On the very coldest of nights we might get a tiny line along the bottom of the ensuite window but that is it. None on the bedroom windows even.

All of the windows are fitted with trickle vents and we use the kitchen extractor fan when cooking and the bathroom extractor fans during and after showering.

We tend to open the windows to air the house through at least once a week for 15-20 minutes whatever the weather.