Studs for 15cm thick interior wall

[maestroz]

Hello,

I have a wall opening that I want to close up (i.e., build a wall). The existing (concrete) wall is 15cm thick. How do I best build an interior wall that should be 15cm?

I was thinking: plasterboard - OSB - stud - OSB - plasterboard (12.5mm + 15mm + 95mm + 15mm + 12.5mm). I planned to mount the studs with nail plugs 8x100mm.

Does that sound good?

Thanks in advance,

Ibbe

 

[Henkan Sundberg]

Hey,

I have a wall opening that I want to close off (i.e., build a wall). The existing (concrete) wall is 15cm thick. What is the best way to build an interior wall that will be 15cm?

I was thinking: plasterboard - OSB - stud - OSB - plasterboard (12.5mm + 15mm + 95mm + 15mm + 12.5mm). I planned to install the studs with nail anchors 8x100mm

Does that sound good?

Thanks in advance

Ibbe

Sounds like a good plan, just remember that you need to cover the seam between the concrete wall and your new wall with something, e.g., microlit otherwise it will crack.

 

[maestroz]

I think that sounds like a good plan, just remember that you need to cover the joint between the concrete wall and your new wall with something, e.g. microlit, otherwise it will crack.

Thanks for the quick response.

I was thinking of using a 50mm fiberglass tape between the concrete and the drywall. (And between all drywall boards.)

Do you think that will work? Or should I buy microlit and cut it to the right size? (Is 50mm enough?)

//Ibbe

 

[Johan456]

You need to apply microlit to a larger area, 50mm is not enough. Then there is a risk that the fabric will still change over time.

 

[maestroz]

Alright. May do that, should microliten also cover parts of the concrete wall?

 

[Henkan Sundberg]

Alright. Får göra det, ska microliten även täcka delar av betongväggen?

Yes, place the microlite so the middle of the roll is in the seam between concrete and wood. If, for example, the microlite is 50 cm wide, place 25 cm on the wooden wall and 25 cm on the concrete wall.

 

[maestroz]

Yes, place the microliten so the center of the roll is at the seam between the concrete and the wood. For example, if the microliten is 50 cm wide, place 25 cm on the wooden wall and 25 cm on the concrete wall.

I assume I attach the microliten with wallpaper paste?

Is it okay to spackle the microliten afterward? I understand the idea is to avoid having to do that.. But the other part of the wall is concrete..

 

[Henkan Sundberg]

I assume I put on the microlite with wallpaper paste?

Is it okay to fill the microlite afterwards? I understand that the idea is to avoid doing that.. But the other part of the wall is concrete..

Yes, wallpaper paste works well. You spread the filler on the edge of the microlite so that it becomes even with the concrete and the new wall. However, you don't need to fill the fabric itself; you can just paint it when you are satisfied with the filling.

 

[maestroz]

Yes, wallpaper adhesive works well. You smooth out the edge of the microlit so that it becomes even with the concrete and the new wall. However, you don't need to putty on the actual fabric; you can just paint it once you're satisfied with the puttying.

OK, Thanks!
I attach a picture of the wall.. OSB and drywall are mounted.

The next step then would be (if I understand correctly)

1. Microlit with wallpaper adhesive
2. Putty the joints between the drywall sheets and between the drywall and the concrete wall
3. Putty all concrete walls
4. Use wallpaper primer on the existing drywall I have where the wallpaper refuses to come off

?

Or should I putty the drywall joints first and lay paper tape... And then apply the microlit.?

 

[Henkan Sundberg]

OK, Thanks!
I am attaching a picture of the wall.. OSB and plasterboard are mounted.

The next step would then be (if I understand it correctly)

1. Microlit with wall fabric glue
2. Putty the joints between the plasterboards and between the plasterboard and the concrete wall
3. Putty all concrete walls
4. Use wallpaper primer on the existing plaster wall where the wallpaper refuses to come off

?

Or should I putty the plasterboard joints first and apply paper tape... Then apply the microlit.?

Hello,

I would do it like this:

1. Putty and apply tape on the joints between the gypsum according to the normal routine. You can glue the paper tapes with wall fabric glue, works like a charm.
2. Putty the joint between gypsum and concrete so it is smooth and without irregularities there.
3. Microlit with wall fabric glue over the joint between concrete and gypsum
4. Putty the joints on the microlit, since it builds a few millimeters, you need to putty them.

Unfortunately, I'm not sure how to handle the gypsum where the wallpaper won't come off, so I don't dare to give any advice on that.

I hope the answer helps, feel free to ask again if I'm unclear.

 

[maestroz]

Hello,

I would do it like this:

1. Spackle and apply strips at the joints between the drywall according to normal routine. You can glue the paper strips with fabric glue, works perfectly.
2. Spackle the joint between the drywall and concrete so it is smooth and there are no irregularities there.
3. Apply Microlit with fabric glue over the joint between concrete and drywall.
4. Spackle the joints on the Microlit, since it adds a few millimeters, you need to spackle them.

Unfortunately, I don't know how to handle the drywall where the wallpaper doesn't come off, so I don't dare to give any advice on that.

Hope the answer helps, feel free to ask again if I'm unclear.

OK. Thanks for the detailed answer. So no strip is needed between the drywall and concrete wall? It's enough to spackle and glue the Microlit then..?

 

[Henkan Sundberg]

OK. Thanks for the detailed answer. So no strip is needed between the drywall and the concrete wall? It's enough to just fill and glue the microlite then..?

Yes exactly, you don't need a strip under the microlite. The microlite replaces the strip.