Circulating Air In Attic

Larger than the vent opening.

Circulating air in attic.

You can t forget your attic when you think of your home s air circulation. A whole house ventilation system is ideal for improving your indoor air quality. 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. Fans and vents may be installed on the roof system that will draw the air out of the attic space and exhaust it to the exterior.

Solar attic fans do just that. About 90 percent of homes in the us have unreasonably high levels of moisture. To keep your attic cool your attic ventilation requires moving massive amounts of air. Mark attic roof air vent locations.

From the roof s peak. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. Fibers may also work their way into closed system air handlers or ducts landing along duct work or circulating into the air in the rest of the house.

More than natural ventilation will do. Install an attic. Attic vents and fans. But powered attic fans can draw your air conditioned air out of the house.

Center nails between rafters 18 in. In addition to the exhaust fans that improve your overall air traditional fans can ensure that the air continues to circulate. In essence all ventilation is about circulating air to keep it fresh and to reduce moisture levels. Most solar attic fans are surface mounted meaning that they are installed directly through the roof surface where they are most efficient.

These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and automatically exhausts the attic space. Attic ventilation fans or turbine roof vents will assist in moving the air. Intake vents located at the lowest part of the roof under the eaves allow cool. Lack of attic ventilation causes stagnant air to become trapped penetrating the attic floor and affecting the entire house.

Window fans are especially useful for this purpose. Cut the shingles for roof vents. Make the cutout area 1 2 in. Cut shingles with a utility knife.

Drive nails up through the sheathing and shingles to mark roof air vent locations.