Which surface finish on OSB?

[Thea Schweizer]

Hello everyone!

We are in the process of renovating our son's room. We prefer to have the smoothest possible surface.
Currently, there are two walls (one of which is a strongly slanted wall) with OSB boards and two walls with some form of "spåntapet" on plaster.

Is renovation plasterboard the only option? Or can you, for example, use renovation wallpaper on everything? Or at least on the slanted wall to avoid too much stress on the underlying studs?
Is there a possibility to use masonite on the slanted ceiling? What would look the best?

Is there any type of "paint" that would make the structure of the OSB boards invisible? Or wide spackling?

I'm completely lost as you can see and I don't really want to make a decision 🫣

 

[Plupp 405730]

Hi everyone!

We're in the process of renovating our son's room. We would prefer to have as "smooth" a surface as possible.
Right now there are two walls (one of which is a strong sloping wall) with OSB boards and two walls with some form of "chipboard wallpaper" on gypsum.

Is it exclusively renovation gypsum that applies? Or can you, for example, use renovation wallpaper on all of it? Or at least on the sloping wall to avoid too much load on the underlying studs?
Is there otherwise an option to use masonite on the sloped ceiling? How would it look the best?

The only thing that holds is gypsum; I would install standard gypsum for a good result.

 

[useless]

Or could one, for example, use renovation wallpaper on everything? Or at least on the slanted wall to avoid too much strain on the underlying studs?

If you think the wall will collapse from a couple of drywall sheets, you should probably redo the construction.

 

[Thea Schweizer]

If you think the wall will fall down from a couple of drywall panels, you might want to redo the construction.

It is mostly because there are already OSB boards in the substructure. I thought it might be too heavy considering the slope?

 

[Thea Schweizer]

The only thing that holds is gypsum, I would have installed regular standard gypsum for a good result..

I'm curious why standard gypsum and not the thinner renovation gypsum?

 

[Plupp 405730]

Curious why standard gypsum and not the thinner renovation gypsum?

Regular gypsum is more stable, I only use renovation gypsum on previously plastered surfaces and curved surfaces for its flexibility.
What do you have against regular gypsum?

 

[nino]

Renovation plasterboard is more expensive
I often think bumps appear where the screw is driven in, would avoid renovation plasterboard as long as possible

 

[Solvskaftet]

It's mostly because there are already OSB boards in the substructure. I thought it might be too heavy considering the slope?

Do you mean you've placed OSB outside of OSB? If so, maybe you should have put gypsum directly.

 

[Thea Schweizer]

Do you mean you placed OSB outside OSB? If so, perhaps you should have placed the gypsum board directly.

No, it's floor joists and then we have set studs where we have mounted OSB panels. So it's not double OSB panels

 

[MathiasS]

Use standard plasterboard, such as 900mm sheets that you can manage to carry up the stairs. If you're worried about the weight, tear down the OSB and start over to build correctly - you can't have walls that risk collapsing under their own weight.