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Maulwurfbau21 Jun 2025 20:35Hello,
our roller shutters do not completely block out the light.
I have now noticed that although the shutter closes down to the aluminum window sill, the guides do not extend onto the window sills, leaving a gap on the side through which a significant amount of light comes in.
In another house, I saw that the guides run down onto the window sills and are therefore completely light-tight.
Attached is a photo.
Is this installation correct, or are the guides too short?
These are aluminum roller shutters, in a prefab house.
What do the experts say?


our roller shutters do not completely block out the light.
I have now noticed that although the shutter closes down to the aluminum window sill, the guides do not extend onto the window sills, leaving a gap on the side through which a significant amount of light comes in.
In another house, I saw that the guides run down onto the window sills and are therefore completely light-tight.
Attached is a photo.
Is this installation correct, or are the guides too short?
These are aluminum roller shutters, in a prefab house.
What do the experts say?
N
nordanney21 Jun 2025 22:42Getting new windows? In that case, the window sill connection profiles should have been notched out (it looks like poor workmanship).
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Maulwurfbau21 Jun 2025 22:47nordanney schrieb:
Got new windows? The window sill connection profiles should have been notched out (looks like poor installation).No, it’s a new build, currently being finished. I just noticed it while testing all the roller shutters.I recall there was a similar topic before:
ᐅ Roller shutters let in a lot of light
I would say it’s quite similar in our case, and the roller shutter guide rail rests on the side track at the window sill. In the corner, wild bees always try to build nests.
We only use the roller shutters as summer heat protection, so we never fully close them anyway. Therefore, I can’t say if they provide complete darkness.
ᐅ Roller shutters let in a lot of light
I would say it’s quite similar in our case, and the roller shutter guide rail rests on the side track at the window sill. In the corner, wild bees always try to build nests.
We only use the roller shutters as summer heat protection, so we never fully close them anyway. Therefore, I can’t say if they provide complete darkness.
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Maulwurfbau23 Jun 2025 14:46Similar topics