twinson
2019-05-03 11:27:43
- #1
Hello,
I have been a silent reader for a long time and would now like to address a very important question for me to you.
I want to fill a cavity, which is located above the stairs (marked in red) on the neighbor’s side of the semi-detached house and not along the entire roof. The cavity amplifies the acoustics of noises, and therefore I want to fill it with glass wool. However, this cavity is (viewed from the inside) located beneath the vapor barrier foil, and I am not sure to what extent filling it with glass wool is safe.
The cavity has an area of about 2m² and ends on one side towards the neighbor with a plastered KS wall and also on our side. It has a low height of about 60 cm at the peak. Downwards, so to speak towards the stairs, the cavity is closed off with drywall (+ painting fleece/painted). I want to fill this completely (with Isover partition board acoustic TP1). The vapor barrier foil is from Knauf, presumably the insulation variant.
The attic is heated continuously in winter, but since it is empty, the room temperature is about 20/21 degrees.
Thank you very much for your advice.
I have been a silent reader for a long time and would now like to address a very important question for me to you.
I want to fill a cavity, which is located above the stairs (marked in red) on the neighbor’s side of the semi-detached house and not along the entire roof. The cavity amplifies the acoustics of noises, and therefore I want to fill it with glass wool. However, this cavity is (viewed from the inside) located beneath the vapor barrier foil, and I am not sure to what extent filling it with glass wool is safe.
The cavity has an area of about 2m² and ends on one side towards the neighbor with a plastered KS wall and also on our side. It has a low height of about 60 cm at the peak. Downwards, so to speak towards the stairs, the cavity is closed off with drywall (+ painting fleece/painted). I want to fill this completely (with Isover partition board acoustic TP1). The vapor barrier foil is from Knauf, presumably the insulation variant.
The attic is heated continuously in winter, but since it is empty, the room temperature is about 20/21 degrees.
Thank you very much for your advice.