Sitting and brainstorming about the dilemma with the bathroom on the lower floor/Basement (75% below ground) and considering how crooked the walls are, my plan was to frame the walls with 70 mm studs to conceal electrical and plumbing.
There's always the risk of moisture seeping from the walls, and the concern that it might mold behind is a factor.
If I frame with a 70mm metal stud CC45 to align the walls and finish with a Farmacell fiber gypsum board, which is approved for wet rooms in a single layer—should that ease my worries? Any other sensible solutions?
K-Plyfa and drywall? Maybe wet room drywall in Wet Zone 1.
Double drywall?
Formplyfa and drywall?
One neighbor chose to re-plaster the walls, another had LUX elements installed on the walls before the surface layer.
The conditions:
- Drained Isodrän 200mm outside (2013)
- Wall construction: Plaster/Concrete block/Träulit/Plaster.
- Floor construction: 200mm Polystyrene/Slab with reinforcement and hydronic underfloor heating (Upcoming)
The rules for bathrooms in basements say that you should only have a waterproof barrier in wet zone 1 and around the drain, and that's my plan.
Looking at the rest of the house, there are some special solutions. The recreation room was framed with 45 timber directly against the outer wall, followed by insulation and drywall, and has been in place for over 20 years—with demolition showing no signs of infestation. Even before drainage.
The basement storeroom is paneled with 22 tongue-and-groove followed by chipboard, and I’ve cut up a square near the floor to check the condition and see no signs of attack on either the tongue-and-groove or the chipboard, looks as new.
The bathroom is currently framed about 60mm against the outer wall and insulated likewise, followed by drywall. I have only demolished smaller areas there for accessibility and changes, nothing directly adjacent to the current shower, and have seen no signs of attack on timber, insulation, or boards.
How the heck should I build the bathroom without plastering all the walls straight for tiling?
That the bathroom decreases in size with studs is a non-issue since it's quite large at about 13 square meters, and it's already out of square today so it would just be a couple of centimeters smaller.
There's always the risk of moisture seeping from the walls, and the concern that it might mold behind is a factor.
If I frame with a 70mm metal stud CC45 to align the walls and finish with a Farmacell fiber gypsum board, which is approved for wet rooms in a single layer—should that ease my worries? Any other sensible solutions?
K-Plyfa and drywall? Maybe wet room drywall in Wet Zone 1.
Double drywall?
Formplyfa and drywall?
One neighbor chose to re-plaster the walls, another had LUX elements installed on the walls before the surface layer.
The conditions:
- Drained Isodrän 200mm outside (2013)
- Wall construction: Plaster/Concrete block/Träulit/Plaster.
- Floor construction: 200mm Polystyrene/Slab with reinforcement and hydronic underfloor heating (Upcoming)
The rules for bathrooms in basements say that you should only have a waterproof barrier in wet zone 1 and around the drain, and that's my plan.
Looking at the rest of the house, there are some special solutions. The recreation room was framed with 45 timber directly against the outer wall, followed by insulation and drywall, and has been in place for over 20 years—with demolition showing no signs of infestation. Even before drainage.
The basement storeroom is paneled with 22 tongue-and-groove followed by chipboard, and I’ve cut up a square near the floor to check the condition and see no signs of attack on either the tongue-and-groove or the chipboard, looks as new.
The bathroom is currently framed about 60mm against the outer wall and insulated likewise, followed by drywall. I have only demolished smaller areas there for accessibility and changes, nothing directly adjacent to the current shower, and have seen no signs of attack on timber, insulation, or boards.
How the heck should I build the bathroom without plastering all the walls straight for tiling?
That the bathroom decreases in size with studs is a non-issue since it's quite large at about 13 square meters, and it's already out of square today so it would just be a couple of centimeters smaller.