ᐅ Experiences with LED Recessed Ceiling Spots in Thin-Slab Ceilings
Created on: 9 May 2014 18:56
K
KäferHello!
For our build, we want to install flush-mounted boxes for LED downlights with wiring in the concrete ceilings. The option to have the boxes cast in at the factory seems too risky to me. I’m worried that the spots won’t line up properly when several ceiling elements are assembled.
What are your experiences?
Alternatively, the electrician suggested making 68mm (2.7 inches) core drill holes on-site in the yet-to-be-poured precast concrete slab, fixing the flush-mounted boxes on the ceiling surface, and then casting around them. This way, the flush-mounted box would sit on the ceiling, but not be inserted into the hole.
What do you think about this approach?
For our build, we want to install flush-mounted boxes for LED downlights with wiring in the concrete ceilings. The option to have the boxes cast in at the factory seems too risky to me. I’m worried that the spots won’t line up properly when several ceiling elements are assembled.
What are your experiences?
Alternatively, the electrician suggested making 68mm (2.7 inches) core drill holes on-site in the yet-to-be-poured precast concrete slab, fixing the flush-mounted boxes on the ceiling surface, and then casting around them. This way, the flush-mounted box would sit on the ceiling, but not be inserted into the hole.
What do you think about this approach?
aytex schrieb:
We had Halox profiles installed. All are exactly where they should be. We have had positive experiences with them.
Which Halox boxes?
Factory cast-in or installed on-site with core drilling? Diameter of the core drill hole?
I would have standard precast ceiling panels delivered and then place the (self-made) electrical boxes on them before installing the reinforcement. Ideally, you can also lay the cables at this stage. How to do this can be found by searching online or in this building forum using the search function. However, if you prefer to spend more money, you can use HaloX-P or a similar product. It works the same way.
Regarding the position (whether self-built or purchased): the exact position of the recessed lights within the electrical box is determined by drilling from inside the room. It’s hard to go wrong as long as you pay a bit of attention. The box just needs to be placed on top of the drill hole from above. I would only perform a core drill when the lights are going to be installed.
Regarding the position (whether self-built or purchased): the exact position of the recessed lights within the electrical box is determined by drilling from inside the room. It’s hard to go wrong as long as you pay a bit of attention. The box just needs to be placed on top of the drill hole from above. I would only perform a core drill when the lights are going to be installed.
So, I will deliver the boxes to the concrete plant. As soon as the slab with the boxes is placed, I will wire them.
I will install 230V spotlights with GU10 sockets for LED spots.
From my experience, the Halox-P 1291-22 should be sufficient. Or would it be safer to install the version with the transformer tunnel?
I will install 230V spotlights with GU10 sockets for LED spots.
From my experience, the Halox-P 1291-22 should be sufficient. Or would it be safer to install the version with the transformer tunnel?
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