Facing two choices. I will be installing underfloor heating on the ground floor. In the kitchen, parts of the hall, and living room, I'll be using grooved chipboards. They will be glued and screwed onto an existing 22 mm chipboard, creating a double layer. The house has 60 cm center-to-center floor joists.
In the hall, 60x60 tiles will be laid. Either I skip the extra chipboard there and use reinforcement and leveling compound to 22 mm, or I use the same grooved boards and have 14 mm minus the tiles to work with. Is there a good alternative to using leveling compound? I'm wondering if it’s possible to use some sort of gypsum board and then glue the tiles with something?
The previous owner had tiles on top of gypsum, and it held up for at least ten years until we removed it.
In the hall, 60x60 tiles will be laid. Either I skip the extra chipboard there and use reinforcement and leveling compound to 22 mm, or I use the same grooved boards and have 14 mm minus the tiles to work with. Is there a good alternative to using leveling compound? I'm wondering if it’s possible to use some sort of gypsum board and then glue the tiles with something?
The previous owner had tiles on top of gypsum, and it held up for at least ten years until we removed it.
Renovator
· Kalmar
· 3 054 posts
There will be a level difference; the best option is probably to filler (floating+mesh) which gives around 26mm building height. The next alternative is gypsum which gives the same height. If it is to be connected to 14mm parquet, there will be a 12mm difference.
26 mm would mean just under ten mm over the hose, which is 16 plus reinforcement.
Would have liked to get down to a total of 37-38 mm.
However, it's probably not entirely ok to pour on chipboard that are only joists cc60 either.
Would have liked to get down to a total of 37-38 mm.
However, it's probably not entirely ok to pour on chipboard that are only joists cc60 either.
Renovator
· Kalmar
· 3 054 posts
Okay, let's go over it one more time. There should be approximately 13 mm of filler over the pipe, so with the tile, the construction height will be 26 mm, putting you 12 mm above the parquet. The reason for pouring this thick is to stiffen the floor when there is a wooden joist system.
Yes, I know what you wrote, so you don't need to go over that again. I also know that none of the other options are optimal.Andreas_kalmar said:
13 mm over the hose will probably depend a bit on which brand of leveling compound is used.
Renovator
· Kalmar
· 3 054 posts
Yes, it probably depends on the supplier, but I don't think there will be any significant difference in construction height.
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