Help me resolve this basement condensation nightmare.... (2023 Update)

Hi everyone,

Thank you for a great forum.

I'm having to deal with an ongoing issue in the basement. This is a semi-detached property built around 1935.

Basically we have 2 air bricks and 1 old vent within a window in the basement approx 1.8mtrs from floor. I know this might sound obvious, but they are all above outside ground level.

If you take a look at the images I've attached, you'll see that the air bricks have water dripping around the borders of the bricks. The air vent in the window also has dripping water.

The humidity in the cellar is 90-100% and it is very cold. The walls are only slightly damp at around 1 foot from floor, but this I believe this is due to the outside ground level being higher, which I guess has to be expected. The rest of the cellar walls seem pretty dry.

However, I'm wondering if there's plenty of air circulation, then why am I getting this issue of condensation?

Can you please suggest anything to help reduce or resolve this?

I look forward to your replies.

Condensation occurs when warm, moisture-laden air comes into contact with a cold surface and cools, causing the water vapor in the air to condense into liquid form. In a cellar with high humidity levels and poor air circulation, condensation on cold surfaces such as windows and air vents is likely to occur.

To reduce or resolve this issue, you can try several things:

Increase ventilation: Make sure that your cellar has adequate ventilation to allow for the removal of moisture-laden air. This can be achieved by installing vents in the walls or floor, or by opening windows or doors to allow fresh air to circulate.

Dehumidify the air: Using a dehumidifier can help remove excess moisture from the air, which can reduce condensation on surfaces.

Insulate the walls and floor: Insulating the walls and floor of your cellar can help keep it warmer and reduce the temperature difference between the surfaces in your cellar and the outside air, thereby reducing condensation.

Seal off any cracks and gaps: Seal off any cracks and gaps in the walls and floor, as these can let in damp, cold air from outside and exacerbate the condensation problem.

Keep the temperature stable: try to keep the temperature stable, so that the temperature difference between inside and outside do not change rapidly which will prevent from condensation build up.

It's important to note that these steps may not completely eliminate condensation, but they can help to reduce it significantly. Also, it's important to keep monitoring the humidity level and take the necessary steps accordingly.