Are you exhibiting just documents?  If so, can reproductions be made for exhibit?  That way, you won't have to restrict the light at all, and historic material will be 100% preserved.

If there are other artefacts in the exhibits, or if you must use original documents, remember visible light is also harmful, not just UV.  Try to position the artefact so no direct sunlight will fall on them (are these in cases?  If so, then avoiding direct sunlight will also help keep the cases from heating up too much--another thing you want to avoid).  

For UV filtration, Carr McLean carries Windowgrip film http://www.carrmclean.ca/CategoryGroupBrowser.aspx?CategoryID=208&GroupNo=2111  One roll should do you.



------------------------------------------------------------
Tim McShane, Assistant--Cultural History
Esplanade Museum
401 First Street SE
Medicine Hat, AB   T1A 8W2
Tel: (403) 502-8587
[log in to unmask]


>>> Mary Beth Corrigan <[log in to unmask]> 5/3/2007 9:04 AM >>>
Hello all,

I am working on a project wherein we are re-furbishing an existing exhibit
in a bank.  We are trying to bring the exhibit up to museum standards (or as
close as possible). There are five windows with french panes, approximately
40" X 60."  Currently, venetian blinds offer the only barrier between the
sun and the artifacts.  At this point several documents are clearly damaged
and we will need to find substitutes and develop a rotation schedule.  I am
wondering if folks out there have any advice regarding the types of barriers
available.  Some have recommended using films that are applied directly to
the glass and plexi that can block the penetration of UV rays.  The designer
(in addition to folks at the bank) would like some of the natural light to
penetrate the space.  I have seen a black mesh shade used in combination
with a plexi UV filter.  This allows a diffuse light penetrate and is
favored by my designer. I would especially appreciate recommendations for
vendors.   Any help would be appreciated.

Thank you.

Mary Beth Corrigan

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