In my search to cool my EXTREMELY hot/humid 2-car attached garage (in South Carolina), the GF-14 Garage Fan (http://www.coolmygarage.com/attic-fans.php
) seems to stand out as a good solution.
However, my concern is whether this is truly safe & up to code. According to the specs, it is fire-rated, so dampers close & motor shuts off in event of fire...so I feel good about this aspect. But, I wonder about sending gases from the garage into attic - can this lead to additional gases making their way into the home & will this comply with building codes?
Since most air in the home moves from bottom to top, I would think not...but then again this would put a positive pressure in the attic space. I would also think it would be less than the leakage already occurring from the garage into the living space. But, I'm also not an expert on this.
FYI, I have a single story ranch with attic space over the attached garage, which is finished with drywall.