Heavy condensation on bedroom windows

SheroP

Hi there
Possibly covered somewhere before but I’ll ask anyway
I have very bed condensation on bedroom windows daily there is a unblocked vent in the room , normal double size , windows are double glazed , house approx 20 yrs old , in a row of detached houses , some seem to have same problem , radiator under window , on for an hour most nights , no laundry bring dried , windows opened during the day , can anyone please advise why this is happening, thank you in advance

Del2005

Humans produce a lot of moisture. Can you leave the bedroom door open to get some airflow?

Cleaning the windows will reduce the amount of condensation on the window.

50HX

Air is not circulating correctly

Have you vents in the windows, window open during the day is a help but obviously closed at night

Is it only one room

SheroP

Thanks for prompt replies
Yes in four upstairs bedrooms, one person in each one
Standard Munster over so no vents
Don’t know really what to do next !

Sagats_knee

Dehumidifier on 24/7 in the colder months. Windows open all the time in the warmer months.

50HX

Have an issue here with mildew build up on the ceiling corners, same issue as you with the windows

Leave bedroom doors open and plug in a dehumidifier on the landing upstairs

You'll be surprised the amount of water it extracts from the air

This only a short term fix tho

50HX

You could look at installing a ductless mhrv

mjmc4004

This will solve your problem if you're house is under 1800 square feet , if not you'll need 2
https://drimasterexpress.ie/shop/nuaire-drimaster-eco-heat/

SheroP

Thanks to all for time and advise
I think I will investigate the cause of problem further before making any investments