Attic Fan Basics

30w 55w solar attic ventilation fans.

Attic fan basics.

As the attic space warms up from the irradiation of the sun the ventilation port opens wider to allow the solar fan to move more warm stale air out of the attic area. To save time use an existing roof or gable vent to install your new attic fan. But considering attic ventilation has been required for over 70 years it continues to be one of the most misunderstood concepts in the roofing industry. Windeevent garage door ventilation.

As a result many attics are not properly ventilated. Insulated attic staircase hatchway covers. When the temperature climbs above 82ºf and you decide to use air conditioning you can shut the windows and crank up the air knowing that the attic fan will save up to 30 on cooling costs by getting rid of trapped super hot air that tends to collect in attics and cause heat to back up into the home. This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan.

Attic fans solar electric. Attic insulation removal bags contractor grade. While the type and number of vents will vary depending on the. Ventilation basics benefits.

Solar attic fan comparison matrix. Before running out to buy an attic fan take some time to check the existing attic ventilation on your house. To better understand attic ventilation it is best to start with the basics. Solar powered attic fan size calculator.

Most solar attic fans are surface mounted meaning that they are installed directly through the roof surface where they are most efficient.