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Hi,
Your joists should be fine for natural stone as long as they are in good shape and no one drill large holes or notched them. Installing blocking between the joists would be a good idea since the planks are not t&g.
I would have used 5/8" instead of 1/2", but still should be OK. What type and grade of ply did you use? You are not supposed to screw the underlayment into the joists, just to the subfloor. In your case you should have used screws that are 1 1/4 - 1 1/2" long.
Jaz
Your joists should be fine for natural stone as long as they are in good shape and no one drill large holes or notched them. Installing blocking between the joists would be a good idea since the planks are not t&g.
I would have used 5/8" instead of 1/2", but still should be OK. What type and grade of ply did you use? You are not supposed to screw the underlayment into the joists, just to the subfloor. In your case you should have used screws that are 1 1/4 - 1 1/2" long.
I vote for Ditra. :thumbsup:Planning on using Ditra or 1/4" cement board.
The difference depends on what you'll be paying for Ditra. Generally I would say Ditra is worth 2x more.Can anyone ball-park the cost difference
Jaz