I need to render the back and sides of the hearth (concrete block) containing a wood burning stove. I have been advised that plaster will crack. Help please on: PVA bonding coat Y/N Suggested mix and type of sand The final finish will be white emulsion or masonry paint or ? - What does anyone recommend as the paint - there will be 80mm gap at the rear of the stove and 200mm at the sides.
Thanks
PeterK