Make your home energy-efficient and save money at the same time. This unique roof ventilator operates by solar power from sunrise to sunset at no extra cost to you. The Fan-Attic™ uses free energy from the sun to provide years of worry-free, no-cost cooling and air circulation. By installing this product it will help remove heat buildup in your attic before it reaches the interior of your home. It’s possible to reduce the workload on cooling and air conditioning equipment by as much as 50%. In the summertime a conventional electric attic fan can add $10 per month to your electric bill. Furthermore, conventional fans must be wired into your home by a licensed electrician which means electrical permits, inspections, etc.
During the hottest part of the day the solar panel’s power output increases the speed and efficiency of the fan to move up to 800 cubic feet per minute (CFMs) of air. The Fan-Attic™ works best in full sunlight. Southern exposure on the roof is ideal. Avoid installing under overhanging trees or other structures that create shade.
The unit comes ready to install. It’s one piece circular flashing/collar design virtually eliminates potential roof leakage.
WARNING: Do not install this product alone. When working on your roof take extra caution with power tools and footing.
Tools & Materials: Reciprocating saw and 12” blade (6” might be needed), drill and 3/4” bit, caulk gun, tin snips, flat pry bar, tape measure, builder’s crayon, three 1 1/2” self-tapping stainless steel or galvanized screws, one 4” screw, two tubes of Henry 208 wet patch roof cement. Power tools can be rented at your local rental yard.
|Skill Level One hammer: Novice
Five hammers: Experienced
|Step 1: Locate about 20” below the roof ridge, centered between two rafters and drill a screw through the roof from the inside using a 4” screw.||Step 2: Use a tape measure to create a 13” circle outline with a builder’s crayon.||Step 3: Drill a pilot hole with a 3/4” bit. This is where you’ll start your cut.|
|Step 4: Using a reciprocating (sawzall) saw with a 12” blade (if your attic is finished use a 6” blade.) You will need the 12” blade for step 7. Cut out the hole.||Step 5: Using a pry bar loosen the roof tiles around the hole all the way to the top of the circle.||Step 6: Using tin snips cut the felt paper 5” on each side away from the opening.|
|Step 7: Using the reciprocating saw with the 12″ blade cut the roofing nails around the hole from 9 to 3 o’clock, using all of the blade. Make sure not to miss any nails.||Step 8: Install the unit by sliding the fan’s flashing below the felt paper and roofing tiles until the unit touches the tile on the top of the opening. This step may require a little movement from right to left to seat the fan.||Step 9: Apply a liberal amount of Henry 208 to the bottom row of roofing tiles under the flashing in the dark area of the roof tiles and press down firmly to spread the cement. This step will seal the bottom of the unit to the roof tiles.|
|Step 10: Secure the unit to the roof using three stainless steel self-tapping screws. Place one in each corner and one in the middle.||Step 11: Apply Henry 208 on each side of the unit. Lift the next course of roofing and seal the 5” cut in the felt paper. Press down firmly to to spread the roof cement.||Step 12: Apply Henry 208 to the top of the unit. Fill the area between the cut tiles and the fan and spread out evenly with one of the cut pieces of tile. Make sure there are no gaps between the top of unit and the roofing.|
|Step 13: Apply a dab of Henry 208 to the top of each stainless steel screw to seal from water runoff. You’re now finished with this how-to installation.|