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Variability of Cypress Rot Resistance
Question
Forum Responses
I have finally developed the attitude that when I use cypress, I prime, seal and paint with the best products I can, then I encourage my customers to repaint on a regular schedule and hopefully never really test the rot resistance of the wood. I believe that swamp cypress grows out faster due to the higher availability of water, and that due to this, the wood is not as good. By the time we consider availability, cost and workability, plus whatever rot resistance there is, we like using cypress on most outdoor projects over most other woods.
From Gene Wengert, forum technical advisor: I have not heard of variations due to growing site. However, old growth has much more decay resistance versus new grown trees and this is documented. From contributor U: Gene, is it possible that there is a difference in the actual types of cypress that are found growing in the two different locations? When I say location, I mean a wetland environment versus a drier woodland area. I have been working around and with cypress in my business for 20 plus years, but I confess I am no expert and stay somewhat confused by the terminology used from one place to the next, to describe the types of cypress. Most of my suppliers just list their wood as cypress, should I be specifying a certain type when ordering the common newer growth cypress that is being sold today? I am in the southeast and a lot of the local wood that is cut and sold here comes from the Appalachicola river basin and adjoining areas.
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