Hello, would appreciate your thoughts.
My house is 1920s with a roughcast render. At some point bay windows were taken out on the front elevation and the render is a patchwork of finishes. I'd like to get the lot re-done so have spoken to a couple of renderers. One said silicone render 'all day long'. the other said sand/cement render 'all day long'.
I do like the idea of not having to paint a silicone render, but when I look at all the new builds I wonder if it's right for an old house, especially as the other elevations will stay sand/cement. Is silicone really invincible or could it bring its own problems and still discolour? It'd be white.
The silicone guy said if I wanted sand/cement render the existing render would have to come off, whereas they can go over the existing render with silicone. The sand/cement guy said that if the existing render is sound they start by putting a fibreglass mesh over the existing render.
Also is knocking off render likely to cause cracks in the plaster inside (it's cavity walls)?
Thanks
My house is 1920s with a roughcast render. At some point bay windows were taken out on the front elevation and the render is a patchwork of finishes. I'd like to get the lot re-done so have spoken to a couple of renderers. One said silicone render 'all day long'. the other said sand/cement render 'all day long'.
I do like the idea of not having to paint a silicone render, but when I look at all the new builds I wonder if it's right for an old house, especially as the other elevations will stay sand/cement. Is silicone really invincible or could it bring its own problems and still discolour? It'd be white.
The silicone guy said if I wanted sand/cement render the existing render would have to come off, whereas they can go over the existing render with silicone. The sand/cement guy said that if the existing render is sound they start by putting a fibreglass mesh over the existing render.
Also is knocking off render likely to cause cracks in the plaster inside (it's cavity walls)?
Thanks
