Solar vent fans
are expensive for what you get. They will really only remove heat from the attic unless you actually duct the exhaust through the attic and into the garage. Normally the air that is pulled from the attic is replaced by air comming in through the soffit. The soffit is all around the perimeter overhang and is perforated to allow the attic to vent. Most homes have passive ridge and mushroom vents that work in conjunction with the soffit to help vent our attics. Cutting vents in the garage door will not allow this type of installation to pull heat from the garage unless you add a duct to exhaust the air from the garage area.
Our house has a man door at the back of the garage. Opening that door combined with leaving the garage doors slightly opened positively keeps the garage at temperatures near out side ambient less a couple of degree. An installation that is to cool the garage has to have openings for air in and air out. Ideally a powered exhaust fan in the garage wall combined with either garage door openings or some other wall intake would cool off your garage. LOcating these openings on oppisite walls as far apart as possible is best.
|