Hello there,
Since the posts here, I have been trying to get any supplier of shower trays to describe to me how a recessed such should be installed in the floor (cement floor in the basement, on top of leveling layer in gravel, 20cm Isodrän, and underfloor heating in my case), connected to the drain, and how the waterproofing should be applied and with which system for it to be considered approved.
So far, the response has been "No, it's up to the installer to decide that. We don't have anything."...
I have found some incomplete instructions in Germany, but nothing more.
Has anyone here had different experiences, i.e., received installation instructions, etc., or suggestions on how I should proceed?
Håkan
Since the posts here, I have been trying to get any supplier of shower trays to describe to me how a recessed such should be installed in the floor (cement floor in the basement, on top of leveling layer in gravel, 20cm Isodrän, and underfloor heating in my case), connected to the drain, and how the waterproofing should be applied and with which system for it to be considered approved.
So far, the response has been "No, it's up to the installer to decide that. We don't have anything."...
I have found some incomplete instructions in Germany, but nothing more.
Has anyone here had different experiences, i.e., received installation instructions, etc., or suggestions on how I should proceed?
Håkan
I have something similar in my basement, having poured a new floor with water-based underfloor heating, but I haven't started the actual construction yet. I don't plan to have a waterproof layer on the floor, but I'm unsure what to do in the shower area. I think I'll probably keep the underfloor heating on year-round to push moisture away from the slab.
I was advised to use primer-fix primer-fix - tile against the outer wall. The tiler suggested that it stops a lot and advised against completely moisture-proofing. It sounds reasonable to me, and I plan to do that.
A shower tray recessed into the floor seems fun, but I can't have that since I have groundwater that's dangerously close to the slab.
Otherwise, I believe you can go far with good ventilation/dehumidifiers and common sense.
For my part, it will probably end up with a massive sump pit in half the space. Or I'll have to start growing rice.
I was advised to use primer-fix primer-fix - tile against the outer wall. The tiler suggested that it stops a lot and advised against completely moisture-proofing. It sounds reasonable to me, and I plan to do that.
A shower tray recessed into the floor seems fun, but I can't have that since I have groundwater that's dangerously close to the slab.
Otherwise, I believe you can go far with good ventilation/dehumidifiers and common sense.
For my part, it will probably end up with a massive sump pit in half the space. Or I'll have to start growing rice.
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One should probably try to avoid organic materials in a basement as much as possible. They collect moisture, and mold and moisture like each other. Regular gypsum boards are a no-go because they are coated with paper, which is organic.
Is the basement properly drained so that moisture can travel through the wall? Of course, there is moisture in the ground outside that should not come in, but a lot should also go OUT. If it is drained, it should be possible to have a waterproof layer since the moisture in the ground (which wants to get in) is stopped from the outside with a Platon mat or equivalent, and the moisture from the shower is stopped by the waterproof layer. That's my little theory... Just make sure to ventilate the air from the shower. It should be under pressure!
Is the basement properly drained so that moisture can travel through the wall? Of course, there is moisture in the ground outside that should not come in, but a lot should also go OUT. If it is drained, it should be possible to have a waterproof layer since the moisture in the ground (which wants to get in) is stopped from the outside with a Platon mat or equivalent, and the moisture from the shower is stopped by the waterproof layer. That's my little theory... Just make sure to ventilate the air from the shower. It should be under pressure!