Builders rarely insulate the floor above a garage.
Hot attic over garage.
If not you may want to consider adding blown in insulation.
Since your home s heating and cooling system usually does not extend into the garage insulating this area does little to change the cost of running the system.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
The biggest problem with these types of spaces is load capacity.
Will the garage heat rise to the attic.
It s double trouble for temperature control.
Hopefully the ceiling cavity between the garage and the finished spaces was insulted.
Install electric ventilators and attic fans which remove hot air from an attic.
If the trusses of your garage roof cannot support an attic you will find that holes will develop in the ceiling of the garage.
Your attic is on the other side of the bedroom wall inadequate thermal treatment and air leaks can wreak serious havoc on comfort.
If you have a garage then you might want to create a little bit of attic storage above it.
A lot of bedrooms over garages have both of these problems.
And in homes with attic knee walls i e.