arner
2017-09-23 13:52:36
- #1
Dear forum members,
We had our fairly large house insulated with 18cm mineral wool for about 50,000. A rail (telescopic mesh strip) was glued onto the connection elements, such as windows and doors. This rail actually has the ability to compensate for slight expansions (up to 2.8mm).
However, in our case, the rail has detached from almost all windows and doors, so there is now a gap of about 2mm between the windows and the rail. You can push a Japanese spatula or paper about 2-3cm behind it. Excessive expansion as a cause is excluded; you can see that the intended expansion range in the rail has not opened at all. In one door, the cause was that the rail was glued onto adhesive tape, but not in the windows. There, the rail was also glued a few days before the insulation work began.
The company that carried out the insulation work now wants to solve this problem by cutting the sealing tape on which the rail is glued (Sk-PE sealing tape) at an angle to create a small joint and then spraying this joint with silicone.
My question now is: Is this an appropriate solution to the problem? The silicone joint is a maintenance joint that has to be regularly checked and maintained. The rail in a functioning form would be the better solution, which we also paid for. How would you deal with the situation?
Thank you for your opinions,
Arne

We had our fairly large house insulated with 18cm mineral wool for about 50,000. A rail (telescopic mesh strip) was glued onto the connection elements, such as windows and doors. This rail actually has the ability to compensate for slight expansions (up to 2.8mm).
However, in our case, the rail has detached from almost all windows and doors, so there is now a gap of about 2mm between the windows and the rail. You can push a Japanese spatula or paper about 2-3cm behind it. Excessive expansion as a cause is excluded; you can see that the intended expansion range in the rail has not opened at all. In one door, the cause was that the rail was glued onto adhesive tape, but not in the windows. There, the rail was also glued a few days before the insulation work began.
The company that carried out the insulation work now wants to solve this problem by cutting the sealing tape on which the rail is glued (Sk-PE sealing tape) at an angle to create a small joint and then spraying this joint with silicone.
My question now is: Is this an appropriate solution to the problem? The silicone joint is a maintenance joint that has to be regularly checked and maintained. The rail in a functioning form would be the better solution, which we also paid for. How would you deal with the situation?
Thank you for your opinions,
Arne