Should the floor be aired when the floor chipboard is primed?

[Cattis Steffensen]

Hello! I am building an Atterfallshus/Ceramics workshop on a post foundation with insulated joists and floor chipboard without building plastic. On the floor, it will be primed/cast and tiles will be laid. The walls have building plastic, and I wonder how I should finish with the tape down towards the floor. Does the floor need to be ventilated since it will be sealed by primer? So, tape the wall building plastic separately and allow air to pass at the edge of the floor chipboard? Grateful for advice

 

[Rickard.lj]

No, apply undiluted primer on the floor, then you'll need reinforcement, tape on the floor and up the wall, unless you have very large gaps and can use silicone or acrylic.

 

[Cattis Steffensen]

Ok, and thank you for the response!
Then the pillar foundation will be sealed upwards even though it is not recommended... Hopefully, the ventilation is good enough. The pillar foundation is partially buried on a sloping plot with a 50cm free gravel path around the entire house.

Should I tape before or after primer? Planning to pour the self-leveling compound all the way out to the 120-rule.
Tape first, then primer for adhesion?
Then attach the lower 45-rule above the concrete floor and tiles.
Is that correct?

 

[Rickard.lj]

Tape after the primer has dried so nothing is damp

 

[Albans doktor]

Ok, and thanks for the answer!
Then the foundation will be sealed upwards even though it's not recommended... Hope the ventilation is good enough. The foundation is partially buried on a sloping plot with a 50cm free gravel path around the entire house.

Should I tape before or after primer? Planning to pour the self-leveling compound all the way out to the 120-rule.
Tape first, then primer as adhesion?
Then attach the lower 45-rule above the concrete floor and tiles.
Is that correct?

We usually finish the wall's plastic/vapor barrier about 5cm out onto the floor and tape it to the floor. Then it's an advantage to run the installation layer before you level the floor, because then you get more insulation in the floor angle which is preferable since stone conducts cold well. You want to avoid cold floors as much as possible. This somewhat assumes that you're planning to use drywall or something similar on the walls.

Hold the lower 45-rule up from the floor board, preferably 45mm so you can use a piece of scrap from the same stick as a spacer, then you get a good strip of insulation there. Then on with plywood and drywall if that's what you have planned. Then seal the floor angle with painter's caulk so the leveling compound doesn’t leak out anywhere. Primer, by the way, is not completely sealed, but works more as adhesion for the leveling compound.

 

[Cattis Steffensen]

Thank you for the very detailed answer! I'll put obs on the walls and plaster in the oven room.
Now I know exactly how it should be done