Delamination of plaster on masonry wall due to hammer drill
Delamination of plaster on masonry wall due to hammer drill
(OP)
I got asked recently to look at a historic house(circa 1850) where the internal plaster has delaminated in a corner allegedly as a result of a service pipe drilled through an adjacent wall.
The wall is a an external wall intersection. Imagine a capital T in plane with the two left hand side surfaces rendered with a crack in the corner and the other surfaces exposed brick. The drill was through the right hand side of the T.
I am having problems coming to a conclusion on this as I find it hard that a drill would cause enough vibration for this but I have not found anything to support a decision either way.
Has anyone heard of this type of thing happening and are there any references available. I have access to UK codes but have not found them particularly helpful.
The wall is a an external wall intersection. Imagine a capital T in plane with the two left hand side surfaces rendered with a crack in the corner and the other surfaces exposed brick. The drill was through the right hand side of the T.
I am having problems coming to a conclusion on this as I find it hard that a drill would cause enough vibration for this but I have not found anything to support a decision either way.
Has anyone heard of this type of thing happening and are there any references available. I have access to UK codes but have not found them particularly helpful.






RE: Delamination of plaster on masonry wall due to hammer drill
Mike McCann
MMC Engineering
RE: Delamination of plaster on masonry wall due to hammer drill
Did it to my self!!
RE: Delamination of plaster on masonry wall due to hammer drill
RE: Delamination of plaster on masonry wall due to hammer drill
Not much for a builder but these are utilities guys that do this for lots of jobs and one claim could open the floodgates. If it their fault then they will fix it but I really want to have some evidence to help me recommend one way or the other.
RE: Delamination of plaster on masonry wall due to hammer drill
RE: Delamination of plaster on masonry wall due to hammer drill
Kieran
RE: Delamination of plaster on masonry wall due to hammer drill
RE: Delamination of plaster on masonry wall due to hammer drill
Yes that was the type of scenario that I was thinking most likely. There are signs of some moisture issues there though nothing major. Very hard to prove without destructive investigation though.
RE: Delamination of plaster on masonry wall due to hammer drill
"There appears to be some indication of minor damp problems in the exterior of this building and this may have caused the initial weakness in the system that made it more vulnerable to vibration.
Without resorting to intrusive investigations it is very hard to draw a definitive conclusion on these cracks."
And left it at that, thanks everyone for the comments/queries.