After searching a lot but not finding the right answers to my questions, I'm trying another "lowering the ceiling" thread.
The existing construction today consists of roof beams/rafters that rest in the middle on a glue-laminated beam, and I want to build a flat ceiling with space for plenty of insulation. Below is an overview of the construction principle.
My idea is to attach steel studs along the outer walls and the glue-laminated beam and then place steel studs in these. But since the span is a little over 4m, I thought of reinforcing these with perforated band/steel studs from the existing roof beams/rafters.
Below these, there will be plastic foil and then hat profiles.
My questions are really about which different studs should I use?
Is it enough to place steel angles, like this, in the walls and the glue-laminated beam in the middle: https://www.bauhaus.se/norgips-vinkelprofil-lp-50-50
I have reviewed the Gyproc installation manual now and unfortunately, I can't find the information I need.
It's probably because I am going to use plastic/vapor barrier between the primary frame and the furring channel, in order to clamp the plastic against the wall using the innermost furring channel.
I want to be able to set up a load-bearing framework, then apply the plastic before I then install the furring channels.
Yes, it certainly looks smooth. However, I don't understand how to get the plastic against the wall. It's in a pool house, so I'm making sure it's as airtight as possible. I will also use hat profiles instead of regular wooden battens due to the risk of moisture.
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