In existing homes the question is important.
Attic of the house which is the best temperature.
Installing attic vents if you don t already have them is another way to assist in the movement of hot and cold air out of your attic.
This won t work as i also had attic fans installed as part of the rebuild and they don t even kick on until 140f to cool the attic so obviously way above 140f is needed.
Again i m assuming that you re not considering a sealed attic lowering the temperature of an attic that contains ducts can reduce your air conditioning costs.
In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house.
Take its temperature.
High temperatures inside your attic shorten the life span of shingles.
If you don t worrying about how best to keep the attic cool is a bandaid on a self inflicted wound.
Indoor air conditioning unit.
Excessive heat deteriorates items you store in the attic and can cause moisture problems in your house.
From research it seems a temperature sensor is the best way to go but all the ones i ve found for smartthings cap out at 122f.
Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.
Hot summer weather poses the opposite problem for maintaining recommended attic temperatures.
Therefore whole house fans are best suited for open well vented attics.
January 8 2010 5 15pm text size.
All of the other tips listed below are good for cooling down an attic so that the rest of your house doesn t get too hot.
An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents.
If you re serious about finding the best way to keep an attic cool this guide has the answers you need.
What should the attic temperature be relative to the outside and house temperatures assuming a new supposedly well insulated house.
Dropping the temperature from 120 150 degrees to roughly the same as the outside temperature will save you enough on your power bill to offset the purchase and installation charge.