Attic Temperature Differential

A good sign is when you open your attic in the winter and you don t see any frost on the nails poking through.

Attic temperature differential.

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. Attic temperature 0 f outdoors calculated difference. Warner is right that the attic should be close to the outside temp. The layer of continuous insulation in the 2 4 wall shields the highly conductive steel stud from exposure to near outdoor temperature.

The white roof lowered the attic temperature by about 20 f. In an ideal world the attic temperature would be the same as the outside temperature. The frost is frozen condensation from the warm air meeting the cold air and not ventilating if that. Freezing and excessively hot outdoor temperatures rain and high.

Attic temperature depends on the amount of solar radiation construction details and the rate of ventilation. Providing half air change per. Ideal attic temperature and humidity settings. In reality however variables get in the way.

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. Ideal attic temperatures and humidity settings aren t always easy to maintain. Your insulating and heating cooling the house not the attic. Calculations indicate that on a july day in texas a ventilation rate of one air change per minute for a typical attic using 95 degree f air will lower the peak attic temperature to about 101 degrees f.