ᐅ Are exterior roller shutters typically completely waterproof?
Created on: 26 Jun 2025 11:49
T
TorstenKandt
Hello,
In my condominium, new windows have been installed, and one of the windows also has an external roller shutter. When it rains, water runs down the inside of the roller shutters, both when they are fully closed and when they are partially closed (see photos).
The company that installed the roller shutters says this is normal. Is that true? I find it a bit odd and am concerned that when the shutters are raised, the moisture might get into the roller shutter box, potentially damaging the shutters relatively quickly.
Best regards,
Torsten
In my condominium, new windows have been installed, and one of the windows also has an external roller shutter. When it rains, water runs down the inside of the roller shutters, both when they are fully closed and when they are partially closed (see photos).
The company that installed the roller shutters says this is normal. Is that true? I find it a bit odd and am concerned that when the shutters are raised, the moisture might get into the roller shutter box, potentially damaging the shutters relatively quickly.
Best regards,
Torsten
T
TorstenKandt27 Jun 2025 09:58Okay, I’ll post more pictures later.
TorstenKandt schrieb:
annt11 also stated that this is a defect.anntElef – in which oZo have you encountered this animal before?https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
W
wiltshire27 Jun 2025 18:1011ant schrieb:
anntElef - in which zoo have you already encountered this animal?In the zoos of felderK and furtknarFT
TorstenKandt11 Jul 2025 09:36Here are photos of the roller shutters.
TorstenKandt schrieb:
When it rains, water runs down the inside of the roller shutters, both when they are fully closed and when they are partially closed (see photo). And when they are not closed at all, they are not affected because they are concealed within the housing.
TorstenKandt schrieb:
Here are photos of the roller shutters. Apparently, the rainwater is running through between the facade and the unit. A complete novice measured this. The units should have been installed flush within the reveal. It seems someone clever wanted to avoid the fact that this naturally reduces the clear height. This type of installation is also possible, but with different connection details and possibly a different sequence for plastering / installation. What is the architect’s profession?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Retrofit external roller shutters mounted on the plaster surface are quite common.
The following options exist:
There are likely reasons why the external roller shutter was not installed on the frame within the reveal... without a photo showing the window and reveal, a reliable assessment cannot be made.
The following options exist:
- The roller shutter box is installed with sufficient distance in front of the facade = water inside the roller shutter is not considered a defect. Water can/should run down between the wall and the roller shutter. Advantage: no "trapped water" on the facade around the box and much less dirt accumulation on the box. Disadvantage: roller shutter is not "lightproof"...
- The roller shutter box is tightly attached to or embedded in the facade plaster... the roller shutter box must be properly connected and sealed horizontally at the top. Water inside the roller shutter = defect.
- Improper combination of 1 and 2 without a proper seal... water inside the roller shutter = defect.
There are likely reasons why the external roller shutter was not installed on the frame within the reveal... without a photo showing the window and reveal, a reliable assessment cannot be made.
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