I'm still not sure what exactly the structural problems actually are. They
are all talking about errors being made but nobody seems to have said
exactly what the issue was.
Bricks falling out of outside walls could be due to poor maintenance after
This newsgroup posting comes to you directly from...
Something seems to be sticking out of the insulation, at regular
intervals. It could be that there were simply not enough ties to resist
the pull of the low pressure zone that can be created by a strong wind
blowing around a corner.
I was surprised to learn that stainless wall ties can also
corrode if the correct grade is not used in a salty environment.
Apparently lime mortars produce less corrosion on galvanised wa;; ties,
so there is something to be said for the traditional sand/lime/cement
Even if you use marine grade, stainless steel can rust if it doesn't get
enough oxygen to the surface to form its protective coating. Back in the
1970s, there was a spate of yacht keels falling off when their stainless
steel bolts rusted in a salty, oxygen poor environment.
Edinburgh doesn't have aprticularly salty air, except very near the sea
when there can be spray duing storms. I can remember a major power failure
in my youth when the spray shorted out the swichgear at Portobello Power
"Nightjar <cpb" <"insert my surname here>.me.uk"> writes:
No one has yet suggested it in this case, but 10-20 years ago,
there was also a trend to economise on the amount of cement in
the mortar in some housing estates, and that has a similar effect
in that the wall ties even if present don't grip sand very well.
[email address is not usable -- followup in the newsgroup]
Woolworths in Worthing could have gone that way. Three story
building just off the sea front, with an exposed cavity, brick
clad wall facing west. The mortar could be dug out by a child,
which of course they did, until the entire skin was removed and
rebuilt. I'm Surprised the 1987 and 1989 storms didn't rip it off but
it was facing the prevailing wind.
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