Solar attic fan cost calculator
Tell us about your home and see how many solar attic fans it needs and what they cost, installed on your existing roof or with a new one.
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How many solar attic fans you need
We size one Attic Breeze Gen 3, 35 watt fan, rated up to 1,775 cubic feet per minute in full sun, for every 1,700 square feet of attic floor. Each fan is $2,271 installed.
| Attic floor (square feet) | Fans | Installed price, one-story home |
|---|---|---|
| up to 1,700 | 1 | $2,271 |
| 1,701 to 3,400 | 2 | $4,541 |
| 3,401 to 5,100 | 3 | $6,812 |
| 5,101 to 6,800 | 4 | $9,082 |
| 6,801 to 8,500 | 5 | $11,353 |
Your attic floor is about the footprint of your top story: a one-story 2,000 square foot home has about 2,000 square feet of attic, and a two-story 3,000 square foot home has about 1,500. Roofs with several separate sections, little sun or too few intake vents can change the count, which we check at your visit.
Common questions
How many solar attic fans does my house need?
We size one Attic Breeze Gen 3, 35 watt fan for every 1,700 square feet of attic floor. The attic floor is about the footprint of your top story, so a two-story home has roughly half the attic of a one-story home with the same living area. Attic Breeze says most homes take one fan per 1,200 to 1,800 square feet of attic floor.
What does a solar attic fan cost installed?
$2,271 per fan, installed. Your written price is confirmed at a visit, after we check your attic, your intake vents and where the fan will get the most sun.
Do I need a new roof to add a solar fan?
No. We install solar attic fans on existing roofs. If you are replacing your roof, adding fans at the same time is the easiest way to do it. There is no extra labor charge for fans installed with a new roof, so they cost less than fans added on their own.
Will a solar fan work if my attic has no soffit vents?
An exhaust fan needs fresh air coming in at the eaves to replace the air it pulls out. If your attic is short on intake vents, we will tell you and price that at your visit.
Pick a time for your visit
You already have your estimate. Choose a morning (9 to 12) or afternoon (1 to 5), and we will call to confirm and come out to measure for your written estimate.
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Financing available, with approved credit
$0 down, 0% financing for 12 months, or payments of about $176 a month on $15,000 at 12.99% APR for 240 months. Soft credit check, approval in as little as 60 seconds.
Financing is with approved credit. Promotional rates and terms are not guaranteed and can change at any time. Payment example: $15,000 financed with $0 down at 12.99% APR for 240 months is 240 monthly payments of $175.63. 0% financing for 12 months is a promotional offer from the lender; the terms that apply after the promotional period are set by the lender. We work with more than one lending partner, and the rates and terms you are offered are set by the lender you are approved with, not by Patriot Roofing and Restoration. All rates and terms are presented to you in writing before you sign anything.