Solar Gadgets Information

Solar Attic Fan Installation Guide

Keeping attic temperatures low is an easy job for a solar attic fan. If you live in an area where you have typically face high temperatures all year round, you have air condition to keep you and your home cool.

Don't Forget to Visit our Solar Attic Fan Store.

However, even if you have a vent in your attic, hot air will still rise and keep your attic very hot. A solar attic fan efficiently removes hot air from the attic and brings fresh air in instead.

Installing a solar attic fan is easy and can be done in about 30 minutes. Furthermore, you do not need professional help since it does not require any kind of electrical wiring to install and operate. You will simply need a few basic tools that you very likely already have in your home or can easily rent from a local hardware store.

Parts of Solar Powered Attic Fan

Solar Attic fan parts

A. Self-Tapping Screws

B. Solar Panel

C. Connecting Wire from panel to motor

D. Adjustable Solar Panel

E. Aluminum Shroud

F. DC Motor

G. Motor Isolation Bracket

H. Blade

I. Stainless Steel Wire Mesh

J. Shroud Support Bracket

K. Stainless Steel Head Screws

L. Aluminum Flashing

Installing Tips

  • Before installing the attic fan, check for any shade on the roof created by trees or a chimney. Make sure it will not block the sunlight needed for solar panel to operate.

  • Before you begin, gently clean any oil residue from the flashing.

  • The attic fan should be centered on your roof, as hot air will rise and accumulate at the center of the attic.

  • The attic fan center should be placed about 2 feet away from the roof ridge.

Necessary Tools for Installation

  • Jig saw
  • Screw driver
  • Ladder
  • Measure tape
  • Spike
  • Razor knife

Installation Directions

You should always follow the installation guide that comes with your solar-powered attic fan. This is simply an overview of how to install a typical model.

Step 1

Choose a spot on the south side of the roof for optimal placement of the solar attic fan unit. If selection of the south side is not possible, then the fan can be installed on an alternate spot for optimal sun light. An adjustable solar panel will also help to capture the maximum amount of available sun light.

Step 2

Hammer a nail from the inside of the attic between two roof rafters. Push the nail through the roof shingles. Measure the length of the flashing and divide it by half. (If it is 19" in length, then half would be 9.5".) Next, cut a length of string or twine equal in measure to half of the flashing diameter (9.5" in this example).

Step 3Solar attic fan installation step

Ascend to the roof via the ladder, but remember that whenever you are working on the roof, the most important thing is safety. To prevent accidents, use a safety harness. Tie the length of string from step two to the nail from step one and attach a marking pen to the other end. Use the pen to draw a circle on the shingles of your roof.

Step 4

With the knife cut the shingles in a previously circle.

Step 5

Solar attic fan installation step 5 Remove the nail. Then it's time to remove the shingles within the circle from the previous step. Using your knife, carefully cut up to 4" through the shingles at the 3 and 9 o'clock positions. This will allow room for the flashing footprint to be inserted under the shingles.

Step 6

Solar attic fan installation step 6 Insert the saw blade sideways at the 3 o'clock position and begin cutting the roofing spikes up and around to the 9 o'clock position. This process will remove nails that will prevent the flashing footprint from properly sliding underneath the shingles.

Step 7

Measure the diameter of the inner side of the attic fan. Use this measurement to create a ventilation hole in the roof sheathing. Be sure to only remove roof sheathing.

Step 8

Use the saw to cut a hole in roof. Generally roof rafters have either 16" or 24" of distance between them. If 16", the roof rafter will run through the previously cut hole. If 24", the attic fan will be centered between the rafters.

Step 9

Solar attic fan installation step 9 Remove the shingles from around the vent opening. Apply tri-polymer roofing cement or caulk around the edge of the hole.

Step 10

Solar attic fan installation step 10 Slide the flashing underneath the tar paper and shingles. Take care not to transfer the roofing cement onto the exposed shingles. Force the flashing up until the shingles come into contact with the raised portion of the flashing. The bottom side of the flashing will be on top of the shingles.

Step 11

Position the four screws around the flashing. Two screws go on either side, and the remaining two go on the top and bottom. The side screws should go underneath the shingles. The top and bottom screws should go on top of the shingles.

Step 12

Solar attic fan installation step 13 Since the screw heads located at the top and bottom will come in direct contact with weather and the elements, protect them with a layer of caulk. Use the remaining caulk to seal slits made around the area where the shingles touch the raised area of flashing.

Step 13

Solar attic fan installation step 10 Position the solar panel so that it will absorb most sun light.

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