This is when you shouldn t get a variable speed air conditioner.
Attic above garage gets too hot with air conditioner.
The temperature in the garage has reached 110 degrees at times this summer.
Thus hot attic air is moving through this space heating the floor of the room and rendering the insulation useless.
There s some attic space above the front half of the garage and two bedrooms over the rear half of the garage both of which get very warm during the summer.
Updating your garage door.
One of the cheapest garage cooling solutions you can use that s still effective is a simple oscillating household fan.
Your attic is on the other side of the bedroom wall.
My idea is to vent the build up of hot air that has risen to the ceiling in the hotspot rooms into the attic so that air from cooler parts of the house can move in.
Depending on the angle of the sun and how well insulated your garage is opening the door will provide a big breath of fresh air.
Low cfm similar to a bathroom vent 300cfm and only in the hot spots basically by adding an inline ducting fan to the return ducts for the hotspot rooms.
Install electric ventilators and attic fans which remove hot air from an attic.
I have large attic with ridge vents and screened vents at either end of the attic to maintain air flow.
The garage attached to my townhome gets the full afternoon sun.
The fan will draw hot air upward and send it out through the vent instead of just moving the hot air around.
It s always too cold or too hot.
If your garage door is on the north side of the building you ll be letting in air that s been shaded all day so it s likely to be cooler than the stuffy air in the garage especially if your garage isn t insulated and acts like a hot box.
Like the rest of your home your garage gets a lot of extra heat from the attic above it.
And in homes with attic knee walls i e.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
Using air conditioning in the garage might also be too cost prohibitive for your liking.
Modern garage doors come in many different materials and colors.
Pedestal fans box fans or even better a higher powered shop fan will get the air in your garage moving.
Attic fans and vents.
I have a shop in my attic for some of my hobbies and it get s very hot in the summer.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
You ll stay cooler and your garage air conditioner unit won t have to work as hard.
Add some rolled insulation to the floor of the attic or to the ceiling of the garage if the attic is finished.
Another highly efficient means of keeping the garage cool is the installation of a permanent vent with an attic fan.
Builders rarely insulate the floor above a garage.
