This home cooling method is referred to as stack or convective ventilation.
Open attic door to cool house.
These fans are commonly mounted in an upstairs stairwell or hallway ceiling where there s at least 3 ft.
It works together with the attic insulation which will ensure hot air does not enter the attic from outside.
I don t claim this is scientific but i found the door closed temperature differential was 6 5 degrees.
A powerful fan draws cooler early morning and evening air through open doors and windows and forces it up through the attic and out the roof vents.
When it comes to the best way to cool attic with or without an air conditioner you need to ensure that any cracks gaps or holes are taken care of.
They have thermostats that turn the fan.
This sends hot air up and out cooling your house and your attic.
With door open 5 2 degrees.
This is an example of fine tuning your home s cooling.
And they d still want to have the ceiling air sealed and fully insulated to minimize heat transfer from the attic to the house.
Alternatively install passive vents such as gable soffit and ridge vents which.
Install electric ventilators and attic fans which remove hot air from an attic.
Therefore i conclude that i get a slightly cooler garage and i assume inside the house leaving the attic door uncovered.
To head off these problems consider these options for bringing your attic s temperature down.
Open a basement window in the farthest opposite or north corner of your home to cool the entire house.
As you can imagine leaving any open areas will allow warm air to seep into your attic during the summer.
Sometimes people say they want to install a pav to cool the house because they don t have ac.
In that case what they really need is a whole house fan not a powered attic ventilator.