Hi,
I need some advice. In our house (3 years old, solid construction, 36.5cm (14 inches) Poroton blocks), there is mold forming in one room at the corner where two walls (both exterior walls) and the ceiling (upper floor under the flat roof) meet. There is no mold anywhere else in the house, and we ventilate the room daily.
I had the roofer check the site, and they removed the roof down to the concrete layer, but everything is dry there.
Now we’re really stuck... Everyone is puzzled. What could be causing this problem?
Thank you and best regards
I need some advice. In our house (3 years old, solid construction, 36.5cm (14 inches) Poroton blocks), there is mold forming in one room at the corner where two walls (both exterior walls) and the ceiling (upper floor under the flat roof) meet. There is no mold anywhere else in the house, and we ventilate the room daily.
I had the roofer check the site, and they removed the roof down to the concrete layer, but everything is dry there.
Now we’re really stuck... Everyone is puzzled. What could be causing this problem?
Thank you and best regards
There is already a possibility of a construction defect.
If the shell builder did not install the Styrofoam insulation cleanly at the ceiling edges in the corner.
Our energy consultant was very thorough about this. For example, we had a minor defect in one corner because the shell builder did not install Styrofoam between the parapet construction of the garage and the house. We were lucky because our bathtub is located exactly in that corner, so we applied thermal insulation from the inside there.
If the shell builder did not install the Styrofoam insulation cleanly at the ceiling edges in the corner.
Our energy consultant was very thorough about this. For example, we had a minor defect in one corner because the shell builder did not install Styrofoam between the parapet construction of the garage and the house. We were lucky because our bathtub is located exactly in that corner, so we applied thermal insulation from the inside there.
Baufie schrieb:
There is indeed a possibility of a construction defect.
If the rough builder did not properly install the Styrodur insulation at the edges of the ceiling corners.
Our energy consultant was closely monitoring this. Many construction defects can actually arise from this. I’m seeing the same issue now in our shell construction. We have a Poroton-DRS Neo edge shell at the ceiling. These are generally good, but they don’t always lie completely flat. In addition, the bedding layer for the Poroton bricks is also a potential thermal bridge.
Similar topics