this is something to think about also in terms of expansion and contraction
of the structural steel. If it is to close to the back of the stone , or
imbeded into it, there can be alot of stress. this would be telegraphed at
the weakest point ie thinest stones.
-----Original Message-----
From: Ken Follett <[log in to unmask]>
To: [log in to unmask]
<[log in to unmask]>
Date: Friday, November 12, 1999 9:13 AM
Subject: Re: stone Restoration
>Michael,
>
>Keep in mind thermal stress on the masonry as the sun goes past each day.
On
>a tower structure there is a twisting movement from sun heat.
>
>][<en
>