BS5385 6.1.2.6 Sheets and boards
The use of sheets or boards that are subject to movement from
changes in moisture content should be avoided if at all possible. If
such boards (plywood board, chipboard, some fibre building boards)
have to be used, they should be restricted to small areas and installed
in such a way that they provide a dimensionally stable and rigid
background. The backs and edges of such boards should be treated
against the ingress of atmospheric moisture that would result in
movement and warping. Tiles should not bridge joints between
boards.
The PTB stands for Pourable Thick Bed. Good for floors, less so for walls unless you're Paul Daniels! I wouldnt use plywood either, I'd use plasterboard, Hardie or Marmox.
The PTB stands for Pourable Thick Bed. Good for floors, less so for walls unless you're Paul Daniels! I wouldnt use plywood either, I'd use plasterboard, Hardie or Marmox.
The PTB stands for Pourable Thick Bed. Good for floors, less so for walls unless you're Paul Daniels! I wouldnt use plywood either, I'd use plasterboard, Hardie or Marmox.