Why am I still getting dampness in my bedroom?

FreeBear

DeletedUser said: The humidity reading is always high, even if no one has been in there all day, it was around 70% this morning, and will be similar later when I return home from work.

At the moment, most of the rooms here are running at 60-75% RH. The bedrooms have been hovering around the 65-70% mark for much of the summer, hitting 80% some days. During the winter, this will drop to 60% or less.

breaking_free

DeletedUser said:

The room is always well ventilated, on dry days the window is always opened for at least 30 minutes.

At least 30 minutes eh? So on other days this time is reduced. 30+ minutes, which is not nearly enough for a bedroom to air out from overnight exhalations. I also have a temp and humidity gadget and unless it's raining outside, my windows are always wide open as I'm working from home (currently 16 degrees out and indoor humidity is 56). That said, this flat is mid-terrace and much warmer than my previous home, which was end of terrace - I used to get very high humidity readings, 70 to 80+, in the morning after a night's snooze with the windows closed. It always took several hours for the humidty to go much below 70 in cool weather. So, I'm suggesting that it's your breathing that's the culprit. The solution is to keep running that dehumidifier when you can't keep windows open.

[Deleted User]

FreeBear said:

DeletedUser said: The humidity reading is always high, even if no one has been in there all day, it was around 70% this morning, and will be similar later when I return home from work.

At the moment, most of the rooms here are running at 60-75% RH. The bedrooms have been hovering around the 65-70% mark for much of the summer, hitting 80% some days. During the winter, this will drop to 60% or less.

I don't understand why it is just my bedroom that is like this, but the lounge/kitchen area, there are no issues, and the humidity is in the normal range. Both rooms have exterior facing walls, and the Lounge has a stud wall instead of a solid brick.

[Deleted User]

breaking_free said:

DeletedUser said:

The room is always well ventilated, on dry days the window is always opened for at least 30 minutes.

At least 30 minutes eh? So on other days this time is reduced. 30+ minutes, which is not nearly enough for a bedroom to air out from overnight exhalations. I also have a temp and humidity gadget and unless it's raining outside, my windows are always wide open as I'm working from home (currently 16 degrees out and indoor humidity is 56). That said, this flat is mid-terrace and much warmer than my previous home, which was end of terrace - I used to get very high humidity readings, 70 to 80+, in the morning after a night's snooze with the windows closed. It always took several hours for the humidty to go much below 70 in cool weather. So, I'm suggesting that it's your breathing that's the culprit. The solution is to keep running that dehumidifier when you can't keep windows open.

It may well indeed be breathing, I'll wait and see what the surveyors say 

plumb1_2

I went to a flat the other day, tenants complaining of damp/ mould especially in the bedroom. Internal walls. 

 They said it was urgent because they suffered from Asthma.
Arrived every upvc window locked shut, condensation inside the windows. Umm open the windows bone head then your walls will dry out and maybe your asthma will go away.

Phil4432

DeletedUser said:

Thanks for your help/advice so far. 

The room is always well ventilated, on dry days the window is always opened for at least 30 minutes.
The humidity reading is always high, even if no one has been in there all day, it was around 70% this morning, and will be similar later when I return home from work.
I have a dehumidifier, but it's not very economical to run, as its an old model! 

The bedroom door is always fully open, which leads into the Lounge/Kitchen area, which doesn't have a humidity problem.

Unfortunately due to sizes, my bed cannot be moved to the opposite end of the room 

I've had good results with Ebac dehumidifiers, though they are prone to issues.

coffeehound

DeletedUser said:

FreeBear said:

DeletedUser said: The humidity reading is always high, even if no one has been in there all day, it was around 70% this morning, and will be similar later when I return home from work.

At the moment, most of the rooms here are running at 60-75% RH. The bedrooms have been hovering around the 65-70% mark for much of the summer, hitting 80% some days. During the winter, this will drop to 60% or less.

I don't understand why it is just my bedroom that is like this, but the lounge/kitchen area, there are no issues, and the humidity is in the normal range. Both rooms have exterior facing walls, and the Lounge has a stud wall instead of a solid brick.

Humid air is slightly lighter than dry so will tend to rise. Have you got good extractors in the kitchen and bathroom?