They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
Open attic door to cool house.
The idea behind them is simple.
This is an example of fine tuning your home s cooling.
Therefore i conclude that i get a slightly cooler garage and i assume inside the house leaving the attic door uncovered.
Whole house fans may seem old fashioned but they re enjoying renewed popularity.
Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.
Wouldn t your attic isn t as insulated as the rest of your house and your a c pulls air in to your return air vent to cool your house.
Your attic acts as an insulation between the terrace and the living room.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
I don t claim this is scientific but i found the door closed temperature differential was 6 5 degrees.
Newer attic fans have insulated doors that close in 30 seconds when the fan s not operating.
Install electric ventilators and attic fans which remove hot air from an attic.
Then prop open the garage s attic access ladder by about 12 inches or enough to let a sizable draft enter your attic.
With door open 5 2 degrees.
You just saw a roof rat in your yard.
So leaving your attic open the a c would just pull hot air from your attic warming your house and over.
Would opening my attic door on the ceiling help lower the temperature of the 2nd floor in my townhouse.
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.
Adding an attic fan can improve the airflow in your attic to keep it cool.
This insulation is penetrated if you open u.
Insulated attic fan door.
Opening your automatic garage door will let cool air and a draft in.
In the garage is an access door to the attic.
The house has roof gable and soffit vents.
This insulation resists the heat from the terrace to pass it directly to the living room.
I have a trilevel home with an attached two car garage facing east in the chicago suburbs.
Insulated garage doors can have up to an r18 rating where an uninsulated door is r 0 therefore helping keep the garage and home cooler more.
During this brutally hot summer of 2012 i ve left the garage access door open and it dropped the temperature in the attic substantially.
A powerful fan draws cooler early morning and evening air through open doors and windows and forces it up through.