There are many similar threads, but I can't find anything that covers exactly this as far as I can see.
I have an old boiler room that is now emptied since the pellet boiler was removed and replaced with a geothermal heat pump that resides in the adjacent laundry room. The (only) good thing about the old boiler was that it kept the boiler room and most of the basement bone dry, but even three months after the change, the basement and the slab feel dry and fine. Now I want to convert the boiler room into a simple TV room, and this has been the plan so far, but I would appreciate some feedback:
1. Level out uneven areas and fill in the old floor drain with concrete (for larger uneven areas) and self-leveling compound (for smaller ones). I've already done the rough work here, it's reasonably even but far from perfect without leveling the whole room which is sloped (which doesn’t bother me too much as long as the floor isn't like a stormy sea when it's done).
2. Lay a blue Platon membrane with upturns for passive ventilation over the entire floor.
3. Cover the floor with 20mm XPS. Partly to raise the floor, which has a significant drop from two adjacent rooms (where you come down from the stairs and the laundry room which is the next room in) and for thermal insulation.
4. Lay a durable wool carpet since I don’t want a plastic carpet that releases microplastics and has a lot of chemicals in it. In both cases, you should probably choose a carpet with a breathable backing to be on the safe side.
Do I need to lay renovation flooring (12 mm beveled particle board) on the XPS before the carpet, or is the XPS durable enough not to deform when the carpet is on, like when you place a sofa with legs that press down? I want to minimize the ambition level and investment due to lack of time and many other things that need fixing in the house, but I guess you could replace XPS with renovation flooring directly? I mostly want to avoid organic materials, but maybe it's fine once you've laid the Platon membrane. I don't have high expectations that a passive-ventilated floor will be amazing, but I think it’s good enough since the basement feels dry.
Then I also wonder if I should lay some kind of fabric, either under the Platon to avoid rattling since the floor won't be perfectly even, or under/over any particle board?
I have an old boiler room that is now emptied since the pellet boiler was removed and replaced with a geothermal heat pump that resides in the adjacent laundry room. The (only) good thing about the old boiler was that it kept the boiler room and most of the basement bone dry, but even three months after the change, the basement and the slab feel dry and fine. Now I want to convert the boiler room into a simple TV room, and this has been the plan so far, but I would appreciate some feedback:
1. Level out uneven areas and fill in the old floor drain with concrete (for larger uneven areas) and self-leveling compound (for smaller ones). I've already done the rough work here, it's reasonably even but far from perfect without leveling the whole room which is sloped (which doesn’t bother me too much as long as the floor isn't like a stormy sea when it's done).
2. Lay a blue Platon membrane with upturns for passive ventilation over the entire floor.
3. Cover the floor with 20mm XPS. Partly to raise the floor, which has a significant drop from two adjacent rooms (where you come down from the stairs and the laundry room which is the next room in) and for thermal insulation.
4. Lay a durable wool carpet since I don’t want a plastic carpet that releases microplastics and has a lot of chemicals in it. In both cases, you should probably choose a carpet with a breathable backing to be on the safe side.
Do I need to lay renovation flooring (12 mm beveled particle board) on the XPS before the carpet, or is the XPS durable enough not to deform when the carpet is on, like when you place a sofa with legs that press down? I want to minimize the ambition level and investment due to lack of time and many other things that need fixing in the house, but I guess you could replace XPS with renovation flooring directly? I mostly want to avoid organic materials, but maybe it's fine once you've laid the Platon membrane. I don't have high expectations that a passive-ventilated floor will be amazing, but I think it’s good enough since the basement feels dry.
Then I also wonder if I should lay some kind of fabric, either under the Platon to avoid rattling since the floor won't be perfectly even, or under/over any particle board?
Due to the fire risk, I would be a little afraid to have XPS so exposed. I think that the ceiling height and how much you can build up can determine the construction.
Platon's Komfortskiva is XPS though, isn't XPS often used in floors and walls?AndreasLarsson89 said:
https://www.isola.se/produkter/gulv...te-produkter/tilbehor-fuktsperre/komfortplate