Pressure treated wood is one way to deter fungi from your pole barn posts.
Treated post in concrete.
The concrete at the top should be sloped away from the post to grade level to avoid water pooling around the base.
Concrete tends to absorb moisture and wood expands when it gets wet.
Caulk around the fence post base.
The photo on the left shows a post set in a bracket that has been mounted to the top of a footer.
Preventing rot is the best way to ensure a long life for your pole barn.
Set the post into the form and temporarily stand straight.
The concrete creates a collar around the post and because different materials expand and contract with mosture and temperature at different rates inevitably a little space develops around the post.
You can use concrete if desired but the moisture in the concrete can sometimes cause wooden posts to rot more quickly while the gravel allows water to drain quickly away from the fence post and.
This will seal the gap between the concrete and post that s caused by freeze thaw cycles.
Product costs availability and item numbers may vary online or by market.
Place the form tube into the hole.
Apply high quality exterior acrylic latex caulk or silicone specifically designed to adhere to concrete at the base of the post.
The wood won t be in contact with the ground but moisture is absorbed by the concrete and pulled up into the wood.
Make sure that the treated side of the post is facing downward.
Over time rotting will occur.
Position the post in the exact center of the hole so it will be surrounded by an even layer of cement on all sides.
When concrete is poured around a deck post in this way the post will rot due to moisture buildup by the soil.
Make sure the post is plumb before allowing the concrete to set.
If you have a friend or family member nearby ask them to help you with this step.
Diy pole barns offers post rot protection.