SOLAR ATTIC VENTILATION
Attic Depot's solar attic fans offer a natural, cost-effective solution for enhancing home comfort and efficiency. These fans promote a well-ventilated attic, maintaining a more temperate and dry environment.
This reduces the need for extensive use of heating and cooling systems, leading to lower energy bills.
By harnessing solar power, these fans operate at no additional cost, making them an eco-friendly choice for homeowners.
Each fan comes with a lifetime warranty, ensuring long-term reliability and satisfaction. Overall, installing a solar attic fan from Attic Depot is an intelligent investment for any homeowner seeking to improve their home's comfort and efficiency.
25-WATT SOLAR FANS
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25-Watt Solar Panel
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Whisper Quiet Poly Vinyl Blades
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Variable Speed 24V Brushless Motor
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Corrosion Resistant Powder Coated Finish
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Protective Animal Screen
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Hail and Wind Resistant Design
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Smart Technology: 85° on, 70° off
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Low Profile: 18"x18"x8"
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Lifetime Warranty
30-WATT GABLE MOUNT SOLAR FANS
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30-Watt Solar Panel
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Whisper Quiet Poly Vinyl Blades
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Variable Speed 24V Brushless Motor
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Corrosion Resistant Powder Coated Finish
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Protective Animal Screen
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Hail and Wind Resistant Design
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Smart Technology: 85° on, 70° off
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Humidity Sensory: 75% on, 60% off
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Lifetime Warranty
30-WATT SOLAR FANS
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30-Watt Adjustable Solar Panel
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Whisper Quiet Poly Vinyl Blades
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Variable Speed 24V Brushless Motor
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Corrosion Resistant Powder Coated Finish
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Protective Animal Screen
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Hail and Wind Resistant Design
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Smart Technology: 85° on, 70° off
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Humidity Sensory: 75% on, 60% off
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Low Profile: 19"x19"x9"
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Lifetime Warranty
70-WATT SOLAR FANS
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70-Watt Adjustable Solar Panel
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Whisper Quiet Poly Vinyl Blades
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Variable Speed 24V Brushless Motor
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Corrosion Resistant Powder Coated Finish
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Protective Animal Screen
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Hail and Wind Resistant Design
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Smart Technology: 85° on, 70° off
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Humidity Sensory: 75% on, 60% off
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27.5"x29"x12.5"
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Lifetime Warranty
How Many Fans Do I Need?
That's a great question! Use the chart below to decide how many fans your project needs
Solar attic fans present a range of benefits, transforming passive ventilation into an active system that enhances the overall health and efficiency of your home:
1. Extended Roof and AC System Lifespan: By reducing extreme temperatures in the attic, these fans minimize the thermal stress on roofing materials and the air conditioning system, thereby extending their lifespan.
2. Moisture and Mold Reduction: Solar attic fans effectively reduce moisture buildup, a key factor in preventing mold and mildew growth, ensuring a healthier home environment.
3. Increased Air Exchanges: These fans facilitate more frequent air exchanges per hour, keeping the air fresh and moving, which is crucial for maintaining a comfortable indoor environment.
4. Cost-Efficiency: Operating solely on solar power, these fans incur no additional energy costs, making them an economical ventilation solution for any home owner.
5. Federal Tax Credit Eligibility: Solar fans qualify for a 30% federal tax credit program, offering significant savings and making them an attractive investment.
6. Durable Construction: Built with aluminum components and stainless steel fasteners, these fans are designed to withstand extreme conditions, ensuring long-lasting performance.
7. Temperature Regulation: In summer, solar fans help lower attic temperatures, reducing the workload on HVAC systems and making living areas more comfortable. In winter, they prevent condensation on roof beams and rafters, which can lead to mildew, wood rot, and rusting of metal components.
8. Protection of Attic Contents: By regulating attic temperatures, these fans help protect stored items and structural elements like shingles, roof boards, siding, and insulation from heat-induced deterioration.
Attic Depot offers a 30W solar fan in both roof mount and gable mount options, providing a simple yet effective solution for hot, under-ventilated attics. This product not only enhances home comfort but also contributes to a healthier, more efficient living space.
Contractors, request pricing information here.
Benefits of a Solar Attic Fan
Solar Ventilation Intake Guidelines
A solar attic fan can only do its job if the attic has enough intake ventilation. Think of it this way: the fan pulls hot, moist air out of the attic, but fresh air has to come in from somewhere to replace it. That’s where soffit vents (or other forms of intake) come in. Without the right balance, your fan ends up working against itself, creating negative pressure and reducing efficiency.
Proper intake ventilation keeps air moving freely through the attic space, ensuring that the solar fan can push out heat, moisture, and stale air the way it’s designed to. This not only protects the life of your roof but also helps lower energy bills and keeps the home more comfortable year-round.
How Many Soffit Vents Do You Need?
The U.S. Federal Housing Administration (FHA) ventilation standard recommends a 1/150 ratio of attic floor space to ventilation. To simplify this for solar attic fans, we use the 1/150 standard, which means you’ll need 480 square inches of net free airspace (NFA) for every solar attic fan installed.
This intake ventilation is critical. Without it, your solar attic fan cannot move air efficiently, and you won’t get the full cooling, moisture reduction, or energy savings the fan is designed to provide.
To make it easy, we’ve broken down the most common soffit vent sizes and how many you’ll need to reach the required 480 square inches of NFA per fan:
Type of Intake | Net Free Airspace | Unit Type | Units Needed |
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Vinyl Perf | 5" | Per Linear Foot | 96' |
Edge Vent | 9" | Per Linear Foot | 53' |
Hardie Perf | 6.25" | Each | 77' |
3" Continuous Soffit | 8.5" | Each | 56' |
8x16 Soffit | 56" | Each | 8 |
4x16 Soffit | 26" | Each | 18 |