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<p>[QUOTE=&quot;coleguy, post: 737983, member: 9167&quot;]I don&#039;t know about glass, but I know steel decays faster than brick. I know at work (railroad) they have to replace steel rail every three years due to decay, which consists of rusting, pitting, and crystal deterioration caused by contracting and expanding due to temperature fluctuations. Steel is like a liquid...it freezes and thaws, which makes it move and over time lose it&#039;s crystaline allignment. And I have to say, steel used in rail for tracks is a far, far superior steel than used in building construction.</p><p>Guy~[/QUOTE]</p><p><br /></p>

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