Decoration of upper floor

[DW79]

Hello,

I had a company do the insulation in my upper floor.
The result is shown in the picture below.

My thought now is to try to do a bit myself, my idea is to buy a lot of Plywood and put it up over all the studs/walls on the short sides.
In between, there will also be insulation boards that I have lying around.

Then I thought of placing new studs on the plywood and attaching drywall to them, and running electricity/water between the plywood and the drywall. Am I completely off track? Am I missing something? Some advice from the pros would be good, I feel

 

[Semiproffset]

Pipes and cables for electricity, antenna, and network are being installed behind the framework. It also looks like you have a well-insulated attic space that is perfect for piping. Just be careful when walking over the glass so you don't puncture the fabric. If you do, make sure to tape it with good tape and ensure it's sealed. A wise man once said that when planning the electricity in the house, think as if it's around Christmas. That means adding extra light sockets by the windows and such, preferably connected via switches so you don't have to lean over sofas and other furniture to turn off Christmas stars, etc.

Then you screw 12mm OSB or plywood onto the framework and plaster directly onto it. This creates a solid wall, and you can screw anything onto it without mollies, anchors, and other hassle. Remember to use boxes for double plasterboard and make sure to have all wires installed before you plaster the wall. It makes it much easier if you need to remove a board, so you don't encounter a wire not reaching, a pipe coming loose, etc.

As for the water, a question arises: Is the bathroom upstairs far from the pipe stack on the ground floor? Otherwise, I would run this as much as possible through the attic space, far away from potential screws for shelves or other installations... I assume the drainage is planned and reaches where it should.

 

[DW79]

You run pipes and hoses for electricity, antenna, and network now, behind the battens. It also looks like you have a well-insulated attic space that is ideally suited for piping. Just be careful when walking over the glass not to puncture the membrane. If you do, make sure to tape with good tape and that it is sealed tightly. A wise man once said that when planning the electricity in the house, you should think as if it’s around Christmas. So put extra lamp outlets by the windows and such. Preferably connected via switches so you don't have to reach over sofas and other things to turn off advent stars, etc.

Then you screw 12mm OSB or plywood onto the glass and drywall directly on that. A good solid wall and you can screw up whatever you want without molly, plugs, and other fuss. Remember to use boxes for double drywall... make sure to have all wires pulled before you fill the joints of the drywall. It simplifies greatly if you need to remove a panel because the wire doesn’t come through, or a pipe comes loose, etc.

Regarding the water, a question arises: Is the bathroom upstairs far from the stack from the ground floor? Otherwise, I would have routed this to the greatest extent possible in the attic, far from a possible screw for some shelf or other... I assume the drainage is planned and comes up where it should.

Thanks for the answer. The water comes up next to where the bathroom is planned (right above it on the ground floor, so drainage, etc. is in place). Okay, then you run pipes for electricity/water/network and then insulation board + wood + drywall on that. OSB boards are just as good as plywood then? There was quite a price difference there, so if you can use OSB instead, that's good.

 

[Semiproffset]

Water is easily drawn up in the wall where it should be. The same goes for drains to the sink. You want to avoid as many floor penetrations as possible (in the bathroom).

Yes, you can definitely use OSB instead of plywood.

If you need extra space for pipes and other things, you can add an extra layer of vertical battens on the walls, but the plasterboard should definitely be installed directly against the OSB board.

Good luck