Damp and mold coming into the baby bedroom?

Hi, normally condensation builds up in the air due to lack of air circulation, so it wont just be your window if theres no air vents I'd suggest having 1 fitted near to the window. That should really help with the condensation issues. Thanks

Velux windows come with a vent fitted . The obvious question is does it drip when or just after raining? I would change the velux for a new one and fit an insulation collar this would stop the cold bridging to the glass.

I could appear to be the room not having enough ventilation. You can fit vents into the room which is one solution. Your room need heat but also ventilation otherwise this causes condensation. What also can help is having up to date windows with vents built in. Also try leaving your window open as much as you can when you've got the heating on. Hope this helps.

Hi, normally condensation builds up in the air due to lack of air circulation, so it wont just be your window if theres no air vents I'd suggest having 1 fitted near to the window. That should really help with the condensation issues and also allow as much air as you can during the day to allow less condensation hope this helps thanks

It is true the condensation /dripping windows is caused by high humidity but that is coming from the whole house, not least as warm (moist) air rises. Putting in trickle vents, for instance near the unit will have some but may be a limited limited effect on the humidity in the room as there is little reason for significant air change to help drop the humidity. Improving the u-value (less heat loss) of the window glass may have a similar limited effect. Be aware the modern window glazing may have a better u-value but the frame may have poorer insulation values than the wood so you may get condensation on the frames. Increasing the heating in the room is likely to be similarly helpful but may not be enough. Leaving windows open during the day may help but could cause mould issues if the walls get cold as a consequence. The main aim is therefore to get down the humidity in the whole house as this is the root cause.