I am never home. I have to many thinks to do, hobbies, work, family, a small business we run. we all know it as life. I have the oldest A/C system in the universe. It cost to much to run and it dosent cool the house. I can leave it on all day and I will come home and find it is 84 degrees inside 73 degrees outside. So the A/C is not worth it. We pulled out the fans out of the closet. 2 in each bedroom one in the sliding glass door one in the front door (pushing in or pulling out of the window) and 4 just moving air in the condo. just attempting to bring the cool night air in to our for lack of better words Sweat Lodge. It was time for a change after having to get up in the middle of the night to shower with cool water just to fall back asleep.
Step 1: Attic Fan
We have great isolation in our attic. R40 is no joke (yes, the access pannel is insolated with R40 as well). Yet as I pushed the access to the attic up I was met with a slap in the face of 100+ degree air. This was just insult to injury. It was only 80 somthing outside and I would have thought the new roof and 6 extra turtle vents would have helped but it didn't. We will get to that in part B of this solution.
Step 2: Measure Attic Access Opening
This is important to select the proper materials for this project. My measurements where 24" x 30". The side to side is the most important. I need at least 3 inches on each side for the fan assembly to rest.
Step 3: Choosing Proper Fan For Square Footage
The math is actually quite simple. its your square footage x ceiling height. My dimentions where 800sqft x 8 foot celings. A 800 square foot house with an 8 foot high ceilings has 6,400 cubic feet of space (800 sq/ft area * 8 ft = 6,400 cubic feet). A good rule of thumb is 3 to 4 times an hour.