Do you have an unfinished attic space? If your roof is sloped and your ceiling is flat and level, it follows that there must be a space up there. That space, during the summer, can become an inferno of trapped, super heated air. This extreme heat backs up into your rooms making you uncomfortable and your air conditioner work overtime. Unless you've spent time in your attic during the heat of the day you may not realize just how hot it gets up there. The fact is that attic temperatures approach 150 degrees during hot summer days. Ever wonder why it's hard to get the upstairs cool or why your air-conditioning electric bills are so high? Your air conditioner has to work up to 50% more if you do not have an attic fan.

You should have an attic fan installed.  According to studies by the Home Ventilation Institute homeowners may experience up to a 30% savings on air conditioning costs with a powered attic fan. ComEd indicates that air conditioners don't have to run as often when it isn't fighting a hot attic.

An Attic fan will force hot air right out of your attic. It is a proven and reliable way to remove hot or damp air from your attic. It only runs when attic conditions require it. The Attic fan only requires a minimum of intake ventilation in the form of eave vents, roof vents, ridge vents or louvered attic wall vents. It does not rely on magical arrays of intake and exhaust venting that may not even work when conditions are perfect. When an attic fan comes on, hot, humid air is exhausted and physically forced out causing intake by drawing in cooler, dryer air from outside through whatever vents you already have. There is just no comparing the air flow difference with passive static vent systems.