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Wall big gap - wall stitching failure

Hi, I was removing the wall paper of an old building when a whole section of the plaster came down and exposed a bi crack. Following it, it seems that starts vertically and then goes diagonally to the roof.
There's a gap of about 1.5/2cms between this internal wall and the external wall, and I'm seeing a broken brick between them, so it's almost certain that the wall stitching didn't went well for this property (which is more than 100 years old, and a 3rd floor tenement flat).
How can I check this wall to be sure is not dangerous to have it this way and what possible remedial solution I might have?


2 Answers from MyBuilder Bricklayers

Best Answer

The way to remedy this situation is to have heli bar and resin system installed to the effected area. Normally two heli bars will be enough to stitch the brick work up, but will depend on how far the crack has travelled; the effected area can then be patched up in readiness for finishing. This is a very effective system to use even on very old properties.


Answered 5th Jan 2018

It might be worth checking no movement in roof also, if crack is running all way up , as a lot of weight and stress on brickwork from roof, check movement on any tiles, also if accessible check in loft, may need some support to timbers.


Answered 8th Jan 2018

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