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nafex - [NAFEX] Vapor barrier of plastic bags

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Chronological Thread  
  • From: "Ed Forest" <edforest55@hotmail.com>
  • To: nafex@lists.ibiblio.org
  • Subject: [NAFEX] Vapor barrier of plastic bags
  • Date: Tue, 27 Jan 2004 13:56:34 +0000

Plant Prop Princ and Pract states that

"Polyethylene plastic . . . allows the passage of oxygen and carbon dioxide, which are exchaned during the respiration process of the stored woodk but retards the passge of water vapor. Therfore, if this type of wrapping is sealed, no moist packing material is needed; the natrual moisture in the wood is sufficient since little wil be lost. Polyethylene bags are useful ofr storing small quantities of scioinwood."
This is the 1990 edition
I am not so brave as to try this since my system of wrapping them with slightly moist newspaper sealed inside of ziplock bags, which I change every month, has done very well for me and allowed me to store wood all winter. The paper does get moldy after a couple months, or sooner if you don't keep it at or around 32 degrees.
I think I will try some of this polyethylene plastic with some scionwood I don't need, but I don't really know how to tell what type of bag this is. It seems to me that Ziplock bags would be too impermeable to both air and moisture but that thin bread bags would allow too much passage of moisture.
I am surprised taht someone mentioned taht the permeability of the plastic actually increased the moisture in the bag rather than to dry it out, unless they were storing it in other than a fridge, such as buried or in a root cellar.
Kevin B
Kevin Bradley

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