Update
Took up a small board at the front of the room near the bay window and there were water droplets and the joists are pretty wet.
Cleared all airbricks fully and chopped out some brickwork to create airflow. I am replacing a couple of the airbricks with some 9" ones at the back as well.
At the front on the bay I am going to clean out bricks and repoint as well to make sure there is no ingress that way as it is only single brick on the bay wall.
Water board are checking the pipework on Monday as well so hopefully starting to get somewhere with the problem.
Pipework under floor is all getting lagged this weekend as well so hopefully all these little steps will help remedy the problem.
Took up a small board at the front of the room near the bay window and there were water droplets and the joists are pretty wet.
Cleared all airbricks fully and chopped out some brickwork to create airflow. I am replacing a couple of the airbricks with some 9" ones at the back as well.
At the front on the bay I am going to clean out bricks and repoint as well to make sure there is no ingress that way as it is only single brick on the bay wall.
Water board are checking the pipework on Monday as well so hopefully starting to get somewhere with the problem.
Pipework under floor is all getting lagged this weekend as well so hopefully all these little steps will help remedy the problem.