I am working on both a carport and an entrance roof for the house. Both the carport roof and the entrance roof are supported by glulam posts, which in turn are set in post brackets. The post brackets are galvanized tubes (about 5cm in diameter) with a U on top for attachment to the post (similar to a post shoe) and a plate with 4 holes for attachment to the foundation at the bottom edge. The tubes are hollow with a hole at the top and a hole at the bottom just above the attachment plate.
The post shoes are thus (as I understand) not intended to be cast in but to be fastened with bolts at the bottom in the foundation. Now, I still want to cast these in to get a really solid attachment, especially for the carport. The problem that arises is that it becomes like a tube going down into the concrete. Even if the glulam post is on the outside, I suspect that condensation will get into the tube (and thus the concrete) and over time it will rust.
Can I get around the problem in some way? Drainage hose from the lower hole of the post shoe out through the concrete? Is it even a problem, maybe you can cast it without any measures?
The post shoes are thus (as I understand) not intended to be cast in but to be fastened with bolts at the bottom in the foundation. Now, I still want to cast these in to get a really solid attachment, especially for the carport. The problem that arises is that it becomes like a tube going down into the concrete. Even if the glulam post is on the outside, I suspect that condensation will get into the tube (and thus the concrete) and over time it will rust.
Can I get around the problem in some way? Drainage hose from the lower hole of the post shoe out through the concrete? Is it even a problem, maybe you can cast it without any measures?
Isn't it easiest to buy new pole shoes that are made for embedding...