Dear Marshall,
Please CC your answer directly to me - I just can't bear to join another
list! My e-mail overwhelms me at times.
Please nicely
Judith.
> I am answering this in the silver off-topic list.
>
> Marshall
>
> Judith Thamm wrote:
>
> > Dear Group,
> > Just a question that is puzzlin
I am answering this in the silver off-topic list.
Marshall
Judith Thamm wrote:
> Dear Group,
> Just a question that is puzzling my husband - someone who has visited the
> WTC would know... were the steel girders etc exposed and NOT covered by
> concrete? From the ruins it appears so.
>
> The re
I don't know what the specific construction of the towers was, but
typically, small gauge steel studs covered by 1/2 inch sheet rock are used
to partition steel structures in the USA. Sheet rock is a fair fire
barrier and is used as such in residential wood buildings to prevent fire
from going b
Dear Group,
Just a question that is puzzling my husband - someone who has visited the
WTC would know... were the steel girders etc exposed and NOT covered by
concrete? From the ruins it appears so.
The reason for asking is that building regulations in Australia stipulate
that structural steel mus
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