How Much Temperature Difference Does Proper Attic Vents Make

Attic ventilation is an intake and exhaust system that creates airflow designed to decrease the difference in temperature between the outdoor air and the air inside the attic.

How much temperature difference does proper attic vents make.

In of vent opening per 150 sq. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Effective ventilation provides year round benefits creating a cooler attic in the summer and a drier attic in the winter. A 30 x 40 ft.

Attic for example has an area of 1 200 sq. How many vents do you need. Soffit vent ridge vents do not alleviate that much heat from inside the structure because that is not what they primarily do. While these powered vents do effectively draw out the.

Now if the ridge vent is only partial or if the attic air temperature is excessive 20 degrees higher than the outside air fans may prove beneficial. Things have been ok low energy bills house very comfortable. Noticed one of the attic vents was not working. Then aim for about 1 sq.

The cooling load for a home air conditioner depends on the difference in temperature between the inside and outside air and reduction of attic temperatures from 155 degrees to 105 degrees f will result in a significant reduction in cooling load. First determine your attic area by multiplying the length by the width. Help purchased home 8 years ago with 2 power attic vents. Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.

Soffit vents and ridge vents are for getting moist air out of the house through the attic via a chimney effect where the soffit vents provide the intake and ridge vents provide the exhaust. Ideal attic temperatures shouldn t be more than 10 to 20 degrees hotter than outside temperatures.