[MassHistPres] replacing windows question

[Marcia Starkey]

Hello,

The Town of Greenfield is planning to replace its Town Hall 1950s windows of wood with fiberglass sash and frames and  insulating polyethlyene closed cell glazing under a state-funded energy grant. 

The National Register building is 1870s and 1950s brick probably over Isaac Damon's 1848 frame 2nd Franklin County Courthouse.  The specs say only that a high quality sealant will be used at the edges.

Can anyone tell me if there are special challenges with a masonry building for such a project? 

Thank you,

Marcia Starkey, chair
Greenfield Historical Commission  
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