Can You Render over Timber?
The Short Answer Is “Yes. ” It Is Usually Possible to Cement Render over Timber. .. . to Avoid This, You Must Apply Render Carrier Boards to the Plywood, but...
The short answer is “yes.” It is usually possible to cement render over timber. ... To avoid this, you must apply render carrier boards to the plywood, but these can't be applied directly to the plywood either, since there must be a gap between the two materials to allow for proper ventilation.
What board can you render onto?
The most common cement boards on the market for render are Aquapanels, Renderflex and Siniat boards.
Can you render weatherboard?
Rendering over weatherboard is pretty much a no no these days. However stripping off the old cladding and recladding with a board to render to is perfectly all right.