Instead of Treetex / Masonite on the wall?

[Hus&Kärlek]

Hello! I have a question about new material on interior walls.

Today, both interior and exterior walls have either “Treetex” boards or, like in the kitchen, thin masonite as cladding (Treetex has painted wallpaper, masonite is just painted). If I want to remove Treetex and masonite, what can I use instead? The simple answer is probably drywall, also for fire protection. But are there other options? Ones that might work better with a 1940s brick house in the Scanian countryside? That might be better from a moisture management perspective?

The picture is of an interior wall (now torn down). I can add that neither the interior nor exterior walls have insulation. The exterior walls are brick from the outside, air gap, wind-proofing paper, 2.5 cm thick planks, Treetex (or masonite in the kitchen). The interior walls are 2.5 cm planks on studs and then Treetex/masonite.

 

[hscn]

I suggest 6 mm renovation plasterboard. In my opinion, it works much better than 13 mm in older houses. Especially if you do not aim for everything to be perfectly square and "pin-straight". The thinner plasterboard follows the substrate in a completely different way. I have noted that some people "hate" renovation plasterboard precisely because it is not as stable but more flexible. I think it is much better to work with, easy to handle, much lower weight, the only downside is that it is a bit more expensive. I have gradually renovated an older house over many years. I have not noticed any issues regarding moisture with just plasterboard without a moisture barrier to prevent moisture migration. If it has worked with Tretex and masonite for many years, it will surely work with plasterboard too. The only occurrence of moisture and mold in our house was in a relatively newly renovated room where the interior had been framed, insulated with Gullfiber, and used a moisture barrier. Poorly executed with air pockets that allowed air movement in the insulation layer, humid room air had condensed against the plastic resulting in mold.