Well I have outgrown my shop and am considering moving the finish room into the attached garage. it is concrete block construction with a reinforced concrete roof that acts as a patio for the floor above. It leaks a bit. I was considering putting a rubber membrane roof on the patio and building a really big pallet to serve as the patio floor. I am not fully committed to making this a finish room as there will be a need to add heat to it in the winter but it would be very simple to add the ventilation needed for spray on lacquer in that area ie open the garage door a bit.
Thoughts anyone?