Right. Here goes, hope someone understands!
I have read many posts here on byggahus and the instructions for Platon Golv on Isola's website, but I still can't get it 100% right how to handle my basement - future home theater room.
We have a family room in the basement. Concrete slab on ground, concrete walls, Isodrän insulation and new drainage on the outside. The room is a concrete shell right now.
We want parquet flooring, and therefore will use Platon blue with their insulation boards so the floor doesn't get too cold. On the outer wall, I plan to use metal studs + osb + drywall (with distance from floor/ceiling for osb & drywall so they have no contact with concrete).
This is as far as I've gotten. Now comes the confusion (and need for your knowledgeable help
):
I understand that ventilation is very important to get as odor-free a basement as possible. If I use metal studs with a track on the floor and ceiling, it feels like the air is then trapped behind the wall. I had thought the best solution would be if air could be ventilated from the floor/behind the metal wall and out through an air gap in the ceiling and a ventilated baseboard.
If this is a good solution, how should one achieve it? Should one place Platon all the way out to the outer wall and set the track on top of Platon, or ventilate the track in some way??
One crazy thought was to attach the metal studs directly to the wall (like PL400) and then the wall is completely open and ventilated at the ceiling/floor.
It feels like this should be a fairly common application for Platon, but I can't find a clear answer on how to do it - grateful for any help/comments!
Hope you understand my Englishman's Swedish
I have read many posts here on byggahus and the instructions for Platon Golv on Isola's website, but I still can't get it 100% right how to handle my basement - future home theater room.
We have a family room in the basement. Concrete slab on ground, concrete walls, Isodrän insulation and new drainage on the outside. The room is a concrete shell right now.
We want parquet flooring, and therefore will use Platon blue with their insulation boards so the floor doesn't get too cold. On the outer wall, I plan to use metal studs + osb + drywall (with distance from floor/ceiling for osb & drywall so they have no contact with concrete).
This is as far as I've gotten. Now comes the confusion (and need for your knowledgeable help
):I understand that ventilation is very important to get as odor-free a basement as possible. If I use metal studs with a track on the floor and ceiling, it feels like the air is then trapped behind the wall. I had thought the best solution would be if air could be ventilated from the floor/behind the metal wall and out through an air gap in the ceiling and a ventilated baseboard.
If this is a good solution, how should one achieve it? Should one place Platon all the way out to the outer wall and set the track on top of Platon, or ventilate the track in some way??
One crazy thought was to attach the metal studs directly to the wall (like PL400) and then the wall is completely open and ventilated at the ceiling/floor.
It feels like this should be a fairly common application for Platon, but I can't find a clear answer on how to do it - grateful for any help/comments!
Hope you understand my Englishman's Swedish
Hi!
No one who can help? I have called Isola about Platon, and they said that you should fix the wall first and then lay Platon/flooring. If there wasn't a major moisture problem, then it shouldn't be a problem to "seal in" the air behind the stud wall (as it seems when you set track/studs).
I also passed by the building center in Mölndal, where they say that Platon has nothing to do with ventilation, it only works as a moisture barrier.
I don't get it :S
I have read the pinned topic about gypsum and basement walls several times, and there are many who suggest Platon, then one who just tore up Platon... I would prefer not to plaster the walls as I want to hide cables.
So here's what I'm thinking of doing:
Isodrän on the outside (already fixed)
Concrete basement wall
Steel studs
OSB (no building plastic, no insulation)
Gypsum
Blue Platon on the floor + upturn
Comfort boards
14mm parquet flooring
Ventilated at the base
BUT, should you also try to ventilate behind the stud wall, for example with ventilation grilles at the top and bottom of the wall??
Hopefully, someone has the time/knowledge to answer d^_^b
No one who can help? I have called Isola about Platon, and they said that you should fix the wall first and then lay Platon/flooring. If there wasn't a major moisture problem, then it shouldn't be a problem to "seal in" the air behind the stud wall (as it seems when you set track/studs).
I also passed by the building center in Mölndal, where they say that Platon has nothing to do with ventilation, it only works as a moisture barrier.
I don't get it :S
I have read the pinned topic about gypsum and basement walls several times, and there are many who suggest Platon, then one who just tore up Platon... I would prefer not to plaster the walls as I want to hide cables.
So here's what I'm thinking of doing:
Isodrän on the outside (already fixed)
Concrete basement wall
Steel studs
OSB (no building plastic, no insulation)
Gypsum
Blue Platon on the floor + upturn
Comfort boards
14mm parquet flooring
Ventilated at the base
BUT, should you also try to ventilate behind the stud wall, for example with ventilation grilles at the top and bottom of the wall??
Hopefully, someone has the time/knowledge to answer d^_^b
Exactly this question I also asked recently here in the forum, but suddenly I found your old thread. Sorry to revive a more than year-old thread again, but is there anyone who has ventilated gaps between the interior wall and the exterior wall in the basement? And as markr writes above, how did you do it?
markr - how did you solve it?
markr - how did you solve it?
Hi,
My basement has been finished for just over a year now. Here is how I did it (right or wrong, I do not know, as there are so many different opinions on what is right!):
1. Platon mat, Platon's own insulation, and then parquet flooring
2. Concrete walls with steel studs:
- Between the steel track and the ceiling/floor, I placed plastic spacers to not trap air under the floor and to help ventilate the concrete wall.
- OSB/gypsum on steel studs.
- NO insulation.
- Gap between OSB/gypsum at the bottom/top near the floor and ceiling, again to avoid trapping air.
- The baseboard is also mounted with a small gap to the floor.
- I will not install crown molding, possibly some edge to tidy up the top of the gypsum, but I have left about a 5mm gap.
No smell or moisture yet. We'll see how long it holds! d^_^b
My basement has been finished for just over a year now. Here is how I did it (right or wrong, I do not know, as there are so many different opinions on what is right!):
1. Platon mat, Platon's own insulation, and then parquet flooring
2. Concrete walls with steel studs:
- Between the steel track and the ceiling/floor, I placed plastic spacers to not trap air under the floor and to help ventilate the concrete wall.
- OSB/gypsum on steel studs.
- NO insulation.
- Gap between OSB/gypsum at the bottom/top near the floor and ceiling, again to avoid trapping air.
- The baseboard is also mounted with a small gap to the floor.
- I will not install crown molding, possibly some edge to tidy up the top of the gypsum, but I have left about a 5mm gap.
No smell or moisture yet. We'll see how long it holds! d^_^b
Big thanks markr! It feels great to get an answer to my thoughts. May I ask a few follow-up questions?
1. The Platon mat, is it ventilated, or did you skip that?
2. Did you lay the mat first, all the way out to the outer wall, and then build the inner wall on top, or did you first build the inner wall and then lay the Platon with ventilated strips?
3. The gaps between the wall and floor/ceiling, have you placed any kind of net or dust filter there? Isn't there a risk that dust accumulates behind otherwise? I thought humidity + dust = potential mold?
Again, thank you for taking the time. The thoughts are just spinning here
1. The Platon mat, is it ventilated, or did you skip that?
2. Did you lay the mat first, all the way out to the outer wall, and then build the inner wall on top, or did you first build the inner wall and then lay the Platon with ventilated strips?
3. The gaps between the wall and floor/ceiling, have you placed any kind of net or dust filter there? Isn't there a risk that dust accumulates behind otherwise? I thought humidity + dust = potential mold?
Again, thank you for taking the time. The thoughts are just spinning here
1. The platon mat is not ventilated (if I assume you mean with a fan)
2. Wall first, then platon mat (with platon folded up all around)
3. Well, no filter. I think dust will accumulate no matter what, so I don't think it will be a problem...
Check this link:
http://www.isola.se/assets/Sweden/Data%20sheet/Platon%20Golv_ritning.pdf
I have something like in the F40 drawings (I have a gap instead of a ventilated floor strip)
Hope that helps! But as I said, whether it's right or wrong, I dare not answer ;-)
2. Wall first, then platon mat (with platon folded up all around)
3. Well, no filter. I think dust will accumulate no matter what, so I don't think it will be a problem...
Check this link:
http://www.isola.se/assets/Sweden/Data%20sheet/Platon%20Golv_ritning.pdf
I have something like in the F40 drawings (I have a gap instead of a ventilated floor strip)
Hope that helps! But as I said, whether it's right or wrong, I dare not answer ;-)
