LED Profile - Flush-mounted outdoors

Hello,

I have a new building here where plastering will be done soon. It is a solid wood construction with wood fiber boards as insulation.

Now I would like to have a continuous LED profile plastered in the large entrance area, which is set back about 2 meters into the house, for aesthetic reasons. The electrical work is available. There are various profiles, but unfortunately my electrician could not help me with this. However, my plasterer and I came across the problem of connecting the profile to the substrate.

The profiles are usually made of aluminum. The idea now is to mill a groove into the insulation to lay the profile in, put mesh on it, and plaster over it. This profile is over 2 meters in all directions. Aluminum expands a bit with heat and cold, which means cracks will form at the connection point of the profile to the plaster and insulation. Although the whole setup is protected from rain, I cannot imagine that this will work well over a long time with moisture, especially during heavy rain or condensation.

Since neither my electrician, plasterer, nor LED profile supplier could help me with this issue, here is the question of how something like this is handled in practice. I am not the first person to want to implement something like this. Are there special systems for this?
Do other homeowners simply accept the moisture risk?

Thanks and best regards

Looks bad on the facade anyway. In raking light, you see every unevenness. Light only when needed but not as a visual feature. Unless you have a castle…. Just put up a lamp. Cheaper, more sensible, easy maintenance and replacement, and no problems.

With my plasterer, however, we encountered the problem with connecting the profile to the substrate.

I had these installed in my garage lintel, they were properly plastered over.



I didn’t quite understand what exactly you intend: Do you want them on the walls or only on the ceiling?!

I didn’t quite understand what exactly you intend: Do you want them on the walls or only on the ceiling?!

I want to have them on the walls and the ceiling. So basically all around in the entrance area. Since it is a wooden construction with wood fiberboard insulation, it won’t be plastered like in a normal stone garage but rather filled and skimmed with a thin topcoat of plaster. That means the profile is anchored in the insulation, which I see as the weak point that allows moisture to get into the insulation.