Do Attic Fan Covers Work

Good insulation reduces fan effectiveness.

Do attic fan covers work. The good news is that there is a great way to prevent this wastage of energy all you have to do is use a good attic fan cover. Attic fans exhaust hot air from your attic to the outside. This will help to avoid premature damage to the shingles or. The safety and effectiveness of an attic fan is a subject that is hotly debated but line powered products usually cost more to operate than they can produce in savings during the summer.

Using an attic cover will properly insulate your attic fan and prevent sir leakage but getting a good attic cover can prove confusing as there are lots of attic fan covers on the market. Intake vents located at the lowest part of the roof under the eaves allow cool. 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. These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home.

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. If the air being forced out by the fan is coming entirely from the outside then yes powered attic fans can be extremely effective. Many homes do not have air tight barriers between the attic and the living space. They also create zones of negative pressure that could pull the ac cooled air into the attic.

If your roof has a slope then it should have a ridge vent at the peak of the roof to naturally allow hot air to flow out of the attic. I also tested the ceiling fan and the recessed lights didn t have covers and not sealed and there was a 1 4in gap around the lights and still no pull of smoke. How does an attic fan work. How an attic fan works.

An attic fan s ability to cool a portion of the house that the a c can t equate to a home that is cooler usual. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents. When that is the case a homeowner is much less likely to use their a c as their home is not reheating like it normally does.

However the utility of attic ventilation fans is actually quite a controversial topic. 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. With the attic fan on i tested the outlets and light switches in two rooms below the attic fan and the smoke puffer didn t get pulled.