does anyone know if when wall ties go you can get horizontal cracking on the
inside and not on the outside wall as one would expect or is this something
entirely different and likely to be expensive
Wall ties fail through rusting. When steel rusts, the rust is
larger than the original steel from which it is formed, which
is why it flakes off. Inside a wall, the swelling due to rust
is sometimes claimed to cause walls to crack and given as the
excuse for all the old wall ties having to be removed. However,
I have no personal experience of this. You could use a metal/
pipe detector to see if there's any metal aligned with the
crack. I would think this more likely in the outer skin though.
The other possibility is that the wall is bowing due to failed
wall ties. Look along the wall for a bulge across the crack.
However, again I would think this more likely in the outer skin.
What size cracks are we talking of here?
[email address is not usable -- followup in the newsgroup]
the crack is on gable end of a semi.on that side of the house is the small
bedroom bathroom then the stairwell
in the sm bedroom the crack runs from the left to right the crack is only
about 2 -5 mm cannot see if it continues in the bathroom its been tiled but
no cracking of grout or tiles...in the stairwell the crack continues at the
same height as bedroom crack is over 10 mm in places it has been repaired at
some point and filled. I have noticed that there is hairline cracking
starting again ..could this be due to work being carried out on that wall
ie:banging and drilling.
the wall itself above the crack is tilting backwards slightly there is appro
3 courses above it to the ceiling.
i was under the impression that the wall ties had been replaced although now
I am not so sure.but as u said the cracking is generally on the outside of
the house I have never seen it on the inside..any ideas as to what it may be
On Thu, 26 Jul 2007 10:22:08 +0100, a particular chimpanzee, "liz
I would have thought a single crack wouldn't be indicative of wall tie
failure; with the bowing, it sounds more like a lack of lateral
restraint. A gable wall with a stair against it traditionally has a
poor level of restraint unless it's tied in at ceiling height.
Is your roof hipped or does the gable continue upwards? If the
former, you may want to also consider some form of roof spread.
"If no-one on the internet wants a piece of this,
what do u mean by hipped..the roof if u look at it from the that side is
triangle leaning back to go to the top of the roof.the crack follows the
upper lintel line which is not visible from the outside as it under the roof
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