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Humidity levels


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I'm starting my collection and finishing off the basement. My section of the basement will have my collection in it. WWI & WWII guns, hats, manuals, books, cloths, gear etc.

 

Being that it's in a basement, where it usually has a higher RH (Relative Humidity) levels does anyone know what the RH should be for a collection of stuff? I can control it with a dehumidifier, but I hate to make it to dry.

 

Any ideas on the matter would be great.

Always looking for info and items on the 503rd PIR, 503d PRCT and the 462nd PFABn


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I'm starting my collection and finishing off the basement. My section of the basement will have my collection in it. WWI & WWII guns, hats, manuals, books, cloths, gear etc.

 

Being that it's in a basement, where it usually has a higher RH (Relative Humidity) levels does anyone know what the RH should be for a collection of stuff? I can control it with a dehumidifier, but I hate to make it to dry.

 

Any ideas on the matter would be great.

This is a great little site!! http://www.collectioncare.org/cci/ccier.html

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I keep mine in the basement, and have the humidity set at about 50%. I had problems before getting it, but none since.

 

I had my humidity set at about 55% for years and have had no noticable damage to any of my cloth or leather items, Ray

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I had my humidity set at about 55% for years and have had no noticable damage to any of my cloth or leather items, Ray

 

55% is what the Smithsonian keeps relative humidity at. It works for me also. If the cement in your basement is not out of portland cement which is water impermiable you will keep your dehumidifier running all the time.

Steve

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  • 2 weeks later...

What is the acceptable low % for humidity?

 

My basement stays naturally in the high 30% range. I have a cement floor with high gloss enamel floor paint and the walls have all been "Thorough-sealed". Am I too low? I keep most of my firearms in the basement, wiping them down good once or twice a year. I have never had any problems. I have very little leather and limited cloth.

 

Greg

My collection is strictly what my dad brought back from the ETO.

Sgt. Mahlon E. Sebring, 82nd Airborne, 319th Glider Field Artillery, A Battery - Normandy, Holland, The Bulge, and Germany... finishing with occupation duty in Berlin

http://ww2-airborne....ts/319/319.html

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What is the acceptable low % for humidity?

 

My basement stays naturally in the high 30% range. I have a cement floor with high gloss enamel floor paint and the walls have all been "Thorough-sealed". Am I too low? I keep most of my firearms in the basement, wiping them down good once or twice a year. I have never had any problems. I have very little leather and limited cloth.

 

Greg

 

 

For cloth and metal, the lower humidity is acceptable. However it can negatively affect any wood products (i.e. gun stocks).

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" We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm. "

View my website honoring the men and women of Indiana: http://indianavets.wix.com/indiana-at-war and follow my updates on Facebook! https://www.facebook.com/IndianaModernAgeofWar/
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One thing to remember, too, is that constant and/or extreme variation is more detrimental than even a consistent non-ideal temprature and RH. So for example, 40% all the time is better than switching between 50% and 40% every other day.

 

As stated above, that website can be helpful. Know you know why museums are so darned comfortable in the summertime! ;)

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