More information from our Senior Conservation Scientist...

 

All paintings and painted surfaces whether oil, alkyd or acrylic are at
extreme risk if exposed to freezing. See the attachment.

 

Please also see Determining the Acceptable Ranges of Relative Humidity
And Temperature in Museums and Galleries. Part 2, Structural Response to
Temperature

at http://www.si.edu/mci/downloads/reports/Mecklenburg-Part2-Temp.pdf 

 

Best wishes,

Ann N'Gadi

Technical Information Specialist

MCI

 

-----Original Message-----

From: Museum discussion list [mailto:[log in to unmask]] On
Behalf Of George Harris

Sent: Wednesday, December 19, 2007 8:39 AM

To: [log in to unmask]

Subject: [MUSEUM-L] Building Freeze

 

Hello,

The collections manager at my museum thought that when we have our
furnace

replaced early next year that it might be a good time to let the
building

freeze to try and kill any pests that are in the collections.  I think
it

is not now going to happen, but some responses she got from a posting on
a

different listserv said that it wouldn't hurt the collections to have
them

be frozen.  This is completely wrong for some types of collections, of

course.  Are there any resources that anyone can suggest that show how

tempreature changes alone and tempreature in cunjunction with its

relationship with relative humidity can damage collections?

 

Thank you.

 

Beau

 

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The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes).

If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).