I have a plastic grate in the ceiling of my garage that simply provides airflow between the garage and the attic. Due to the layout of my garage, my workbench is almost directly beneath this grate. During the majority of the year, the heat here in Florida makes my attic very warm and this warm air continually flows down through the grate, making even the most simple workbench work a sweaty affair. Over the summer, it literally feels like you're working under a giant hair dryer!
My question is, do I even need this grate or can I just replace it with drywall?
Please note that my garage is NOT air conditioned and we don't park our cars in there. I appreciate any feedback!