Ask a questionQuestion?

ᐅ Mold caused by a thermal bridge (corner) in a recessed area

Created on: 11 Dec 2022 19:14
H
henning181
Original post
Good evening,

Every winter, one corner of my renovated old building develops mold. The exterior wall is uninsulated, and not enough warm air from the heating system reaches the niche, even though a radiator is installed directly in front of it.

Is it possible to insulate the corner from the inside? If so, how?

I have attached pictures and would appreciate any advice.

Thank you very much
Narrow corner under the roof, wooden floor, mold on the wall and baseboard, bright light from the right.


Corner with wooden floor, white wall, brown moisture and mold stains; beam of light.


Tight attic corner with sloping ceiling, wooden floor, and mold stains on the wall.


Bright radiator on the left, passage to a dark storage room with boxes and toys.
S
Steffi3312 Dec 2022 17:53
#7
As an initial measure (until the cause is identified and resolved), I would install a small fan (one without a heating function) to blow air in. It might help to remove the stagnant moist air from the corner.