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I am planning to add extra insulation to a living room internally. I am currently considering what type of board/boards to use. Should I use drywall? If so, it should probably be double layers with plywood, OSB, or chipboard underneath to create a stable base for screwing into the finished wall.

But my real question is whether it makes sense to skip the drywall and only use a board made of some wooden material. Then I would have a good base to screw into and maybe avoid unnecessary costs. Which board material is best in that case? Should I choose OSB or chipboard? What are the differences?

The wall, when finished, will be framed with timber, so I am not using metal studs.

Bye
 
Plaster or not really depends on what kind of surface you want afterwards. Particle board can be somewhat suitable for wallpapering, but I believe there is a risk of cracking at the joints. OSB is unsuitable for any form of surface treatment, unless you specifically want the uneven surface that OSB has.

But if we consider today's common wall construction with a wood-based board covered with drywall, you can choose whichever wood board you prefer. Particle board is the cheapest, but not very nice to screw into; construction-grade boards tend to be considerably harder than boards in, for example, IKEA furniture. Plywood is best, pleasant to screw into, and provides good stability to the wall. But unnecessarily expensive. OSB is a good compromise, usually costing half as much as plywood.

In some constructions, plywood is used as a temporary floor (for which neither OSB nor particle board is suitable) and then becomes walls.
 
In a simpler storage room, I have tested weaving directly on OSB. It turns out really ugly.

I have also tested weaving on chipboard, and it turns out totally fine.

Otherwise, drywall on OSB is a nice solution.
 
andersmc said:
I have also tried weaving on chipboard, and it turns out quite okay.

Otherwise, plaster on OSB is a nice solution.
I have the entire downstairs with chipboard, and it mostly looks like crap, so I'm putting plaster in all the rooms I renovate.
I realized there's a plasterboard with a foam core on the back, so the insulation is already done. Check how much it costs.
 
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Thanks for the help. I have spoken with my father who also has very bad experiences with wallpapering directly on particle board. It feels somewhat unnecessary to prepare the room thoroughly and then risk having to live with ugly cracks. It's leaning towards gypsum on particle board.

/Bye
 
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Joak
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Apply plasterboard on OSB, and you'll get a good wall and an easy-to-work surface.
 
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