Hello
I have a small dilemma where I want to reduce movements for a wooden joist structure against a concrete slab.
I had an extension with a basement, I removed the extension, leaving the basement. Then I cast a raised slab on the ground around the basement. Yes, on two sides at least. The dilemma is that when I lay tiles over the concrete and then over this basement, I don't want any movements that will cause cracking. On the basement, there is now a wooden joist structure.
Should I lay joist sheet with GV and/or a Minerit board and then reinforcement with leveling compound in this wooden joist structure, or flow in GV directly on a Minerit board?
If I want to save on height, maybe I should use joist sheet, then a Minerit board of 8 mm, then flow with 25 mm fiber compound, then also have 10 mm over the concrete?...then I have 10 mm left for tiles and grout...
The joist is 30 cc.
