Laundry Internal Render - To Remove or Not

Most likely the render is reasonably sound, tap it and any hollow sound is a worry, solid is fine. You should be ok to patch the lower render and tile. You should try and remove some paint usually scratching the surface so the tile glue has something other than paint to grip to. Try to avoid tiling against naked brick, they are often a bit uneven and any mortar line cracks are likely to also crack your tiles.

Doesn’t matter if the mortar has an odd hollow spot and yes an SDS will easily remove the render, preferably something like an 18v model is ample.

Hi John

Thanks very much for you reply.

It's good to know that I won't have to strip it all off. I knew I would need to do something about the paint. When you say scratch, do you mean something like a wire brush on a drill? Does all the paint have to come off or just enough to give the tile glue a good bonding surface?

Cheers

Originally Posted by ankr

Hi John

Thanks very much for you reply.

It's good to know that I won't have to strip it all off. I knew I would need to do something about the paint. When you say scratch, do you mean something like a wire brush on a drill? Does all the paint have to come off or just enough to give the tile glue a good bonding surface?

Cheers

more a gouge in a cross patten. Think Stanley knife or Jack the Ripper, a quick slash.

Originally Posted by johnc

more a gouge in a cross patten. Think Stanley knife or Jack the Ripper, a quick slash.

Thanks, John!