Hi – I’m looking to lay a limestone floor in my house – most of it will be on concrete, but the hallway is a suspended floor.
I’m getting contradicting advice about preparing the substructure for the hallway – the two pieces of advice I’m getting are:
Option 1:
To remove the existing floorboards (they are in a terrible state)
Fix 18mm WBP ply across the joists with 200mm centres and noggins on the long edges
To the WBP ply fix 6mm Hardibacker board
Lay new floor
Option 2:
To remove the existing floorboards (they are in a terrible state)
Fix 18mm WBP ply across the joists with 200mm centres and noggins on the long edges
To the 18mm WBP ply, fix at 90 degrees, 15mm WBP ply with 200mm centres
Lay new floor
I’m also being told to prime the underside and edges of the ply
Thoughts?
I’m getting contradicting advice about preparing the substructure for the hallway – the two pieces of advice I’m getting are:
Option 1:
To remove the existing floorboards (they are in a terrible state)
Fix 18mm WBP ply across the joists with 200mm centres and noggins on the long edges
To the WBP ply fix 6mm Hardibacker board
Lay new floor
Option 2:
To remove the existing floorboards (they are in a terrible state)
Fix 18mm WBP ply across the joists with 200mm centres and noggins on the long edges
To the 18mm WBP ply, fix at 90 degrees, 15mm WBP ply with 200mm centres
Lay new floor
I’m also being told to prime the underside and edges of the ply
Thoughts?
