Hopefully a simple one for those of you in the know.
I have a few small raised beds in the garden made of thermalite aerated breeze blocks (max of 2 high). I am hoping to render them. My question is how eg type of mix - presuming 1 cement to 6 sharp sand with PVA or rendamix in it. Will apply PVA to block 1st too. Presuming I don't need lime as some suggest. Number of coats is another question. It seems easier if I could just skim over the blocks to fill in holes / roughness. Would this be okay or would it just fall off. Otherwise presume 2 coats needed ????
If it matters all walls are curved and to be painted after drying.
Many many thanks, D
I have a few small raised beds in the garden made of thermalite aerated breeze blocks (max of 2 high). I am hoping to render them. My question is how eg type of mix - presuming 1 cement to 6 sharp sand with PVA or rendamix in it. Will apply PVA to block 1st too. Presuming I don't need lime as some suggest. Number of coats is another question. It seems easier if I could just skim over the blocks to fill in holes / roughness. Would this be okay or would it just fall off. Otherwise presume 2 coats needed ????
If it matters all walls are curved and to be painted after drying.
Many many thanks, D