WALLE
Apr 2, 2013, 04:38 AM
I have a block retaining wall approx 1.5 metres in height and 12 metres in length. It was rendered and then painted. The paint and even some of the render is now flaking off (in some areas through to the scratchcoat) I suspect the blocks have no membrane down the back of them or a suitable pebble/stone filler before the soil. Can I spray the wall with a suitable material that saves me having to paint it again (which would only come off again with the moisture) or will I have to dig out the soil from the back of the wall down to the foundations (horrible job!) and put in the correct membrane and stone drainage system.