Today I finished tearing down the bathroom ceiling.. so now the fun begins
But as you can see in the picture
there are joists with cc60 between the floors. But the other "planks" that the drywall ceiling was attached to look like regular planks..
I'm going to install those S-ceiling tiles. These are quite heavy! Do I need to replace these planks with something stronger? Like 45x70mm that I brace between the joists?