Fan Blowing In Attic

An attic floor that is thoroughly air sealed.

Fan blowing in attic. Attic ventilation fans could be effective if your home has. Using a fan to blow hot air out of the attic doesn t address the radiant heat flow from the roof to the attic floor. Hvac equipment in the attic that is well insulated and sealed. Trying to solve the heat gain problem in your attic by using a fan is like lying out at the beach with a fan blowing over you and thinking you re not going to get a sunburn.

Open your windows before you turn on the fan. Attic insulation that is less than r 19. Bountiful eave soffit ventilation space. Much of that heat then conducts downward and finds its way into the house.

Cooler outdoor air enters through open windows lowering the indoor temperature. It s a big fan and basically the idea is that when it starts to get a little sticky you turn the fan on and it just you open up a few windows around the house and it pulls a nice breeze throughout the house. 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 whole house fan is usually installed on the attic floor near the center of your house.

If possible i d peek into the attic to make sure the vents are clear and working before cutting the hole and installing the vent. That air gets pulled up into the attic. 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. Condensation is caused when warm moist air reaches its dew point.