Hello

I am going to extend an old brick and plaster interior wall in the basement's recreational room. My idea was to frame up the new wall, i.e., the extension, and clad it with OSB and plasterboard. The new wall should therefore align with the plastered wall when everything is finished. I want to maintain the plastered wall's structure until the new, extended wall, which will be wallpapered.

I suspect that the easiest way is to cover the joint with a strip, but I do not want a strip between the plastered wall and the new wall if it can be avoided, without the wallpaper covering the joint by letting the wallpaper extend a few centimeters over the plastered wall.

How do I ensure it doesn't crack between the plastered wall and the framed wall extension?

I suspect there is more to consider than just only paper tape and putty would suffice?
 
If you wallpaper over the joint, it will crack sooner or later. The wallpaper must end with the sheet material of the stud wall. One option is to create a slip layer between the wall and the stud frame, for example using a masonite strip placed between the end side of the wall and the first wooden stud. Fiber cement should also work well for this.
 
If you mask the line between the walls and only apply adhesive on one side, allowing the wallpaper to overlap the unglued area 4-5mm over the seam, it will likely not crack visibly....
Of course, no adhesive on the back of the wallpaper in that case...
 
Thank you for your answers and tips. I suspected it wasn't as simple as using a paper strip. Therefore, something is needed that can absorb a relatively large movement, significantly more than what just a paper strip can handle.

Would the problems decrease if I use steel studs instead of wooden studs and renovation wallpaper under the regular wallpaper as extra reinforcement?
 
With steel and plaster, the problems become smaller. One should not exaggerate the concerns.
 
Click here to reply
Vi vill skicka notiser för ämnen du bevakar och händelser som berör dig.