We run a dehumidifier full time in our garage. In the summer we empty it once a day. A couple weeks ago I thought there has to be a reason we need to dehumidify. I found out that our garage has an opening to the outside. I want to seal this off but I don't know how.
The spot that is open is just above the poured concrete walls. This was constructed in 2007. I don't understand why they would leave this open to the outside.
How can I seal this off in a way that looks professional?
This picture is where the garage is not sealed off above the concrete wall.
This picture is where the garage is sealed off above the wall.