[MassHistPres] question on metal fire escapes

[knrmcguire at aol.com]

Hi,
 
Are there any strong opinions one way or the other in using metal for the material
of choice for a fire escape on an historic building. The cost is significantly greater, but
the ongoing maintenance is significantly less than other options such as wood.
 
What are your thoughts on this?
 
Roberta McGuire
Westford Historical Commission
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