To ensure that the attic fan is working properly you need to make sure that your attic is sealed up tight where it touches the ceiling of the top floor.
Openjng attic door for heat.
As you know cold air settles and hot air rises.
Your attic acts as an insulation between the terrace and the living room.
If your hatch rests directly on the moldings add 2 1 2 inch wide stops around the opening.
While it does help to reduce the heat in your attic putting these fans in your attic costs more because of the loss of conditioned air.
The stops provide a wider surface for attaching the weatherstrip and a space to mount hook and eye fasteners.
Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.
I think you should do the reverse one.
But while downstairs is just right.
But by adding powered attic fans you will draw more air into the attic.
One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.
Opening your automatic garage door will let cool air and a draft in.
Sealing the attic hatch or door.
Finish up by sealing the access hatch with self sticking weather stripping.
Be sure that the access door is well fitted and doesn t let air escape around the edges.
This insulation is penetrated if you open u.
In late winter early spring we can go weeks and weeks without using either the a c or heater by opening windows at night to cool the house then closing them in the morning to keep the house cool.
This insulation resists the heat from the terrace to pass it directly to the living room.
Then prop open the garage s attic access ladder by about 12 inches or enough to let a sizable draft enter your attic.