I had the rear face of my property re-pebbledashed about 20 years ago. It has always sounded hollow when tapped and the float coat appeared to be live.
Recently, when fitting new windows, a large area of the top coat was disturbed and just fell from the wall. The exposed scratch coat was very weak, almost just sand, and when rubbed just came off of the wall in a cloud.
I have since removed all of the top coat, which came away from the scratch coat with considerable ease, by easing it off with a wide bladed knife.
My problem is how do I now remove the scratch coat? It is too soft to remove with a hammer and chisel as it just breaks down to dust when I hit it. It is also too firm to just scrape off.
Would an air operated needle gun be the answer or would that take the surface off of the bricks as well.
I would appreciate any suggestions that may help me resolve this problem.
Thanks for any replies.
Recently, when fitting new windows, a large area of the top coat was disturbed and just fell from the wall. The exposed scratch coat was very weak, almost just sand, and when rubbed just came off of the wall in a cloud.
I have since removed all of the top coat, which came away from the scratch coat with considerable ease, by easing it off with a wide bladed knife.
My problem is how do I now remove the scratch coat? It is too soft to remove with a hammer and chisel as it just breaks down to dust when I hit it. It is also too firm to just scrape off.
Would an air operated needle gun be the answer or would that take the surface off of the bricks as well.
I would appreciate any suggestions that may help me resolve this problem.
Thanks for any replies.
