Sealing of floor-to-ceiling windows from the outside

  • Erstellt am 2020-01-07 12:13:05

Bookstar

2020-01-07 14:23:29
  • #1
Definitely not. The installation for the window manufacturer only has to be airtight. Sealing on the outside is not within their scope of service.
 

Golfi90

2020-01-07 14:27:45
  • #2
Here is a response from my construction contractor:

QUOTE:
An inventory from TÜV Nord for one of our construction projects with TÜV supervision.

Quote:
During the inspection, it was pointed out that according to DIN18195, Supplement 1, the flush-mounted windows must be sealed watertight to the exterior wall base waterproofing.
Since the base waterproofing of the exterior walls was led inward in the window reveals, an internal sealing routing is possible and is to be executed according to on-site agreements.
The bonding must be watertight done. For this, any contamination in the overlapping area of the waterproofing must be removed.
End of quote


For data protection reasons, I can only provide the original report to you in person for reading.
I see it, as do you, with mixed feelings. But in my opinion, this is a very good solution.
This solution has been applied by us for about 15 years.
The article "Der vergessene Anschluß" is well known here.
More in a personal conversation.
 

Dr Hix

2020-01-07 14:34:58
  • #3


That is not generally correct. Of course, the FB must also fundamentally take care of the external sealing. In this special case, however, this is only not possible if the necessary conditions are not provided to him. Creating these conditions afterwards is, on the other hand, of course not the task of the window manufacturer.
 

Domski

2020-01-07 15:19:06
  • #4
That means the contractor has had a bad feeling about the solution for 15! years and does not improve it despite knowing better? ops:
 

Bookstar

2020-01-07 18:25:07
  • #5
Why should the window manufacturer do that, where is that stated? In practice, the window manufacturer does not do this. Either the landscaper or the tinsmith does.
 

Dr Hix

2020-01-07 23:03:54
  • #6
Please do not confuse the "external sealing" of the windows with the base sealing. The latter may be done by the landscape gardener or tinsmith (in our case more likely the roofer). The external sealing of the windows primarily refers to the protection against driving rain and that is the responsibility of the FB. This is clearly not given here with the open foam insulation.
In my opinion, the threshold should also include the connection to the (appropriately prepared) base sealing. After all, the tiler does not omit the last few centimeters above the shower tray because the sealing tape from the plumber starts there.
Furthermore, the craftsman is liable for defects and a missing connection is undoubtedly one. If a planner is involved, he can possibly be brought in as a co-responsible party, but the craftsman cannot simply use this as an excuse to escape liability. Also: if the window fitter cannot execute the connection because other trades have botched or omitted it, he must report this before execution and have the client commission the necessary rework, or at least have the faulty execution “released.”
I am not entirely sure at this point, but I would claim that such a “release” can also be in the form of a contractual agreement that essentially states something like “lower sealing is explicitly not commissioned as this is done by the Spengler GmbH company.”
However, this probably would not exist with an “all-in-one general contractor.”
If everything had gone right in this case, the base sealing would have had overlapping EPDM sheets, to which the FB could simply have connected with his sealing tape, and everything would have been fine. Now it gets interesting.
 

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