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Thread: treated posts
05-15-2012, 08:44 PM #1
What is the rule on treated lumber being covered with metal? I can't seem to find a clear answer. Thanks.
05-16-2012, 04:36 AM #2
Re: treated posts
Short answer is that the treated lumber, if CU, has to have a barrier between the wood and the metal to prevent a reaction between dissimilar metals.
Unless the metal is stainless steel and then I have reservations about the quality of the SS.
Many companies have started using coating to the metal and I do not trust them for the long term applications.
If you read deep into the attachment manufacture's test studies and warranties you find that there will be a statement that the wood should not be subjected to water.