Our house is only 3 years old, and we found standing water in our column cap (see pics). Although a piece of cement board was place on top of the porch column by our builder, water is still getting in.

What is the best way to keep water out of these columns? I've been searching the internet and haven't found anything yet. Do you drill holes in the caps to let the water drain (probably would leave drip lines on your columns - yuck)? Do you have to seal the cement board on a regular basis? Do you have to angle the cement board to let the water runoff? Should we use a different material than cement board on the top of these columns?

Any advice would be greatly appreciated.

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