Hi guys
Quick question, would Celotex type board be OK to use under a concrete pad outside? Reason I ask to raise the level up 75mm will cost a lot less and use less concrete as I need to raise nearly 200mm.
If so do I need a DPM underneath and on top of it? The final finish is a porcelain tile.
Cheers
Mike
Quick question, would Celotex type board be OK to use under a concrete pad outside? Reason I ask to raise the level up 75mm will cost a lot less and use less concrete as I need to raise nearly 200mm.
If so do I need a DPM underneath and on top of it? The final finish is a porcelain tile.
Cheers
Mike