Your attic can get over 160 degrees in the summer and this heat comes down into your house. A solar powered attic vent fan replaces the air your in the attic without side air which cools your whole house.

Here’s a solar attic vent system. The fan runs when the sun shines on the PV modules and the temperature that you set is reached. The air escapes through the other vents already in your roof. You don’t need county permits or a professional electrician to install a solar attic vent fan.

To install a one piece attic vent system, first, figure out how your attic naturally vents the air. Go up into your attic and find the vents and openings. Next, find the best place for the fan. Put the solar powered fan where the sun hits your roof. The south or west facing sloop works well. Another logical spot for the fan is in a vent near the top with the covering around the fan. Many roofs already have passive vents. These openings are ideal for a fan but the size and accessibility may keep you from installing one here.

If so, you may need to cut a whole. The one piece solar attic vent fan has shown in these figures easy to install. The total cost for this fan is around $550.00. If you have to cut a whole, stay away from support framing. Going to the attic and find the best spot halfway between the rafters which are slopping beans. Keeping the fan between the rafters lets it rotate properly. Check the directions that come with your attic fan to verify the correct size hole to drill. You can cut your hole entirely from on the top roof. If you’d rather do part of it from the attic, drive a nail through the center of the hole and then go up on the roof. Find that nail and finish making it the correct size.

Next, while you’re in the roof, pull the shingles back and slide the unit including the flat base up under the shingles. Drop the fan into the hole. Seal the fan base with silicon or ice and water shield tape for weather proofing and you’re done.