Do Attic Fans Cool 2nd Floor

Powered attic ventilators are the worst way to try to keep your attic cool.

Do attic fans cool 2nd floor.

The temperature in your attic typically far exceeds the temperature outdoors and this creates a blanket of hot heat that just sits on top of your second floor. That blanket of hot air is resting right on your second floor all day long. Whole house fans can be found inside a home usually in a second floor ceiling. It kept the second floor a tad cooler.

Your attic insulation has a big impact on your second floor. Attic fans push out the hot air and pull in the cool air from the vents installed on your roof. They ve been well discussed here and other places but briefly they re not cost effective don t deal with the problem where it starts are using convection to solve a radiant heat problem and can even be dangerous by backdrafting combustion appliances and. This created a completely cool attic dramatically reduced power bills and easy to maintain temperatures in the second floor rooms.

Install an attic fan. If you need to understand why venture up to your attic on a 90 degree day. Although their plan cost a bit more this solution delivered a totally cool and comfortable second floor. I will publish more details on this option later.

Compared to the rest of the house the second floor rooms were extremely hot and impossible to live in during the afternoon and evening. To ensure that the attic fan is working properly you need to make sure that your attic is sealed up tight where it touches the ceiling of the top floor. Adding an attic fan can improve the airflow in your attic to keep it cool. We have no ac heater is in attic in old renovated 81 house.

Therefore you can create a barrier between your attic and second floor with insulation. It is also a very good idea just for safety an attic fire would destroy your house. We had a lot of new insulation blown into the attic and it no longer feels like the ceiling of the 2nd floor is part of an oven. An attic fan can do wonders to cool your house in the summer all the hot air stored up there just raises the temp of your house.

The reason fans don t work to cool your attic. If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit. Solar attic fans actively remove hot air and humidity from you attic. Stack effect causes a house to pull air from the attic.

A whole house fan is designed to pull air in through open windows and doors and exhaust this air through an attic. Exhausting moderate amounts of attic air as solar. Use an attic fan and whole house fan. The one area of your home where insulation has the most impact on your second floor comfort is your attic.