Rendering onto concrete prefab

[Trw144]

My brother is in the process of purchasing a bungalow to renovate, of which part of the structure is prefab concrete. Can anyone suggest the best ways to insulate and render this element of the build - I believe @prodave has used wood fibre boards which may suit this requirement.

[ProDave]

Yes indeed. My timber frame is clad in 100mm thick wood fibre board and then rendered. That system can certainly be used on brick houses so I see no reason why not on a concrete build.

[Trw144]

@prodave am I correct in thinking it does nt require a ventilation gap? Also, could you give me an idea of the price of the board and render system? Is it a special render for this board?

[ProDave]

That's right, no ventilation gap. You can also do a similar external insulate and render with EPS (or is it XPS?) based systems.

 

I can't give a price for the board as that was sourced by the builder who built my frame, so I never had an itemised price for it.  It did cost about £7K for the render and labour to apply it. It's a thin coat render system, I used the one from Baumit.com. the base coat is a lime based mixed from powder, and the top coat is ready mixed in tubs available in a range of colours and textures.