You may want to contact the National Park Service's Heritage
Preservation Services branch.  They have produced several Preservation
Briefs and Tech Notes on replacing windows in historic buildings
(http://www2.cr.nps.gov/tps/index.htm).  I'm sure someone there can
provide you with the name of vendors.  They may also be able to assist
you with the museum-related issues since their office is located on the
same floor at NPS' Museum Management Program.

Laura Mahoney
Formerly of NPS, now at IMLS


-----Original Message-----
From: Museum discussion list [mailto:[log in to unmask]] On
Behalf Of lmoreton
Sent: Tuesday, August 03, 2004 2:23 PM
To: [log in to unmask]
Subject: light and glass for new buildings


Hello List,

We are investigating new windows for a building just about to undergo
rennovation. It is a historic structure. The building preservation side
of the issue want to re-create the building exactly as it would have
looked when in use. This includes a long wall of very tall windows on
one side. The building is going to be used as a museum. We are
investigating the various types of glass available and what each kind of
glass can do in terms of light and heat reduction. One question posed by
the glass people is, what is the "damage function number" we as museum
people need to meet? Can anyone advise me on this?

Also, can anyone recommend vendors if you have already tackled this
problem?

Thank you in advance. Lydia Moreton



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