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11 replies
9k views
11 replies
Platon mat for passive ventilated floor - which one should I use?
Hi,
wondering if anyone can help me; I've decided to put a platon mat under the foam plastic in the basement. On top of the foam plastic, there will be a tile floor. But what type of platon mat should I use? and where do I buy it? I've seen that Platon has a product called "Yellowline," is it the right one? and where can I find it? Very grateful if someone knows, there's a lot online but hard to find the right one....
Buggaren
wondering if anyone can help me; I've decided to put a platon mat under the foam plastic in the basement. On top of the foam plastic, there will be a tile floor. But what type of platon mat should I use? and where do I buy it? I've seen that Platon has a product called "Yellowline," is it the right one? and where can I find it? Very grateful if someone knows, there's a lot online but hard to find the right one....
Buggaren
...and so much easier. But if I am now investing so much work and money to get the basement okay, I want to be sure that I'm doing it in the absolute best way... IF it is the case that the platonmat under the cell plastic doesn't benefit at all, I don't want to lay it down... but I've gotten the idea that it could help keep the concrete dry? It would be great if someone has experience or tips on the subject.
Buggaren
Buggaren
the concrete needs to breathe, isn't foam quite dense? If you put Platon underneath, you get a small air gap. Yellowline that you mentioned, I remember I saw something about them on fuktsparren.sesepani said:..and so much easier. But if I now invest so much work and money to get the basement ok, I want to be sure that I'm doing it in the best possible way....IF it doesn't do any good with the Platon mat under the foam, I don't want to use it...but I've got the impression that it could help keep the concrete dry? It would be great if someone has experience or tips on the topic.
Buggaren
Yes... that's what I was thinking... although it seems difficult. My basement has a part (about 45 m2) with a "lower" foundation slab than the rest of the basement (about 10 cm), and here the concrete is very uneven. But maybe it doesn't matter, perhaps it's still okay to lay Delta Yellowline even if the surface is uneven? The rest of the basement, I have discovered now during the renovation, has 40 mm of Styrofoam embedded in the concrete, i.e., there is a sole underneath, then 40 mm of Styrofoam, and thereafter about 50 mm of concrete on top... and here the concrete floor is completely even and you can probably lay Yellowline easily. Anyone who has experience with a construction with embedded Styrofoam? The house is a Myresjö from 1974. All tips welcome. Anyone who either knows, has done this, or has a good tip on where to turn...
Buggaren
Buggaren
If they are very uneven, it might be difficult; you might have to even them out first. Otherwise, there are leveling floors that should work if they are a bit uneven, but I have heard they are expensive. In my basement from 1970, they have filled with lecakulor on the base, then a bit of Styrofoam and a plastic sheet, and then cast a new slab on top, like a sandwich model, and there is an air gap along the walls. It seems to help, no moisture upwards anyway. You seem to have something similar but with cellplast in between. The question is if you need platon or yellowline on that floor, it should work to put a plastic sheet on the concrete, then the floor. Is there any air gap?
No, no air gap anywhere in the basement. The floor with the styrofoam has it completely "encapsulated" in the concrete. However, where the styrofoam is embedded, I can quite easily lay Yellowline and in that case, I'll run the air gap along the walls and ventilated baseboards. But on the other "recessed" part, it might be a bit tricky because the surface is uneven. I'm quite tempted to lay some form of Platon under the styrofoam anyway... even where it's "uneven". I don't think I'll level the floor, it feels like too much work...
I have decided to place the cell foam directly on the concrete floor WITHOUT any type of Platon mat underneath. Most people seem to think that this works. I am installing a new type of floor heating where the hydronic floor heating is "cast" into the cell foam. I haven't seen the solution myself and can't quite see how it works, but I think it sounds good.
Buggaren
Buggaren
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