In summer, a properly installed attic fan can eliminate excessive heat buildup and provide cooling to the attic space. This helps reduce pressure on your insulation systems, preventing unwanted heat transfer to your living space. Yes, in most cases you could benefit from an attic fan. attic fans draw warm air out of the attic and ultimately lower the indoor temperature.
Typical penthouses will reach 120-150 degrees during the summer. An attic fan can help lower that temperature by up to 50 degrees, which translates to a temperature up to 5 degrees lower inside your home. Not only will you feel cooler inside, but your air conditioner will last longer since you won't need to cycle as much. In addition, attic fans have been proven to help extend the life of the roof as well.
Attic fans work with your HVAC system by venting moisture, making warm air feel even more stifling, outside your attic. The benefit is more than removing warm air from the attic. It also circulates air conditioning throughout the house for a more even temperature in all rooms. Cold air is heavier than warm air, so the first floor may be cold, while the upstairs rooms are too warm for your comfort.
An attic fan moves cool air up and through the house while blowing out warm air. Attic fans can work even better when you have good attic insulation. A primary benefit of attic fans is that they help maintain the integrity of asphalt roofing shingles to decrease deterioration and prevent deformation. Many people do not know that a poorly ventilated attic accelerates the aging of tiles and deforms the wooden lining of the roof.
They won't make your roof last forever, but attic fans can reduce wear and tear, improving the years of use you get from your roof and delaying costly replacement costs. Attic ventilation fans help cool attic air by blowing suffocating hot air inside the attic and bringing in cool air from outside. This prevents warm air from leaking into your home and raising the temperature in the living space, reducing the load on the air conditioner. When an attic fan is running during the hottest summer days, the temperature in the attic can drop as low as 50 degrees.
This makes your whole house cooler and could allow you to raise your air conditioner thermostat up to 10 degrees, while maintaining your comfort. Attic fans are very useful pieces of equipment. Depending on the season, they have different benefits. By drawing damp, stagnant air out of the attic, attic fans help prevent moisture from building up and ultimately help create less inviting conditions for mold.
Fortunately, however, an attic fan will prevent this moisture before it has a chance to negatively impact the roof. Another disadvantage is that homes that do not have air-sealed attics may lose some amount of their air conditioner from the suction of the attic ventilation fan, depending on how much ceiling ventilation space is available. Attic fans are something to consider if you're looking for more efficient ways to keep your home cool in the summer and warm in the winter. If you have appliances that use natural gas or propane, an electric attic fan can cause exposure to carbon monoxide.
The air of makeup isn't something that a lot of people think about on a regular basis, but it's important when talking about attic fans. As the name implies, attic fans promote air circulation within the highest space of the house. I think the best solution may be a combination of radiant barrier to prevent heat from the sun from heating the attic structure, to begin with, along with proper ventilation, attic exhaust (s), insulation and air sealing. Running the attic fan will draw this cool air up and into your living spaces, which could cause the temperature to drop significantly.
If your only goal is to save money on your electricity bill, then an attic fan probably isn't the best solution. For example, if the attic is at 150 degrees and you circulate air through it that enters 110 degrees from the outside, then you can expect the cooling effect to lower the temperature of the attic to about 125-130 degrees. . .