Attic Fans And Ventilation

Do not use mechanical means electric attic fans.

Attic fans and ventilation.

A powered attic ventilator or attic fan is a ventilation fan which regulates the heat level of a building s attic by exhausting hot air. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool. How attic ventilation works.

Best ventilation is open soffit venting to a open vented ridge vent. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic. The result is a cooler attic space with plenty of air exchange. Iliving 16 wall mounted exhaust fan automatic shutter variable speed vent fan for home attic shed or garage ventilation 1200 cfm 1800 sqf coverage area 4 6 out of 5 stars 521 109 77 109.

Quietcool attic fans work almost everywhere almost anytime. However the utility of attic ventilation fans is actually quite a controversial topic. This cap features both a back draft damper and bird screen preventing outside air from entering the home and birds and small pests from entering duct work. 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.

The downside of attic ventilation fans. Good insulation reduces fan effectiveness. See the benefits of attic ventilation a new roof is more than just shingles. An attic fan can be gable mounted or roof mounted.

During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly. Which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home depot. One of the leading causes for fires. Attic fan ventilation 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.

A thermostat is used to automatically turn the fan off and on while sometimes a manual switch is used. Ridge vent must me installed per the manufactures instructions. More than 50 of the attic fans i see do not work and have current still live to the motor. Additional vents are required to draw in fresh air as the hot air is exhausted.