New answers tagged plastic
I have been a fence contractor for 25 years. It is important to keep the soil away from the base of the post. Wood rot starts there because of moisture, microbes and fungus. Post rot does not start underground because there is no oxygen there or fuel. It is important to crown or slope the concrete above the grade to keep soil away and so water runs off ...
The main reason to wrap the in ground portion of a wooden post in plastic is not to prevent water getting in but to provide a slippery surface so that the post can not be pushed up by frost in the ground. Gravel at the bottom of the posthole is a must for drainage.
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