35Watt & 65Watt Premium Solar
Attic Ventilation Fan w/ Thermostat


Developed, designed and engineered in the USA!

The Solar Royal solar attic ventilation fan was designed to address all the missing features and limitations within the current marketplace offerings. Whether you’re trying to ventilate your attic, shed, multi-family dwelling, garage, barn, or commercial space, You have found the smartest solution for your solar attic ventilation needs (download our solar attic ventilation fan brochure). Please give us a call to speak with a representative about your specific solar attic ventilation needs. You can contact us via our LiveChat, Phone or our Support eTicketing System.

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  • A solar attic ventilation fan is a great solution for many indoor maintenance problems
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Benefits of a Quality Solar Attic Ventilation Fan


TAS100a-95 Miami-Dade Performance Report windstorm certified solar attic fan

No other solar attic ventilation fan on the market offers the innovations, features, ease-of-use, versatility in applications and value. This also includes certifications; no other solar attic fan offers both ASTM E330/14 & TAS100a-95 certifications. Give Solar Royal a call today with your comparison questions so we can assist you in reviewing your options.

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Curb Mount Base

Modular Curb Mount Bases (3″) are available for solar attic ventilation fan installation requiring curbs.

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6″ Riser Module

Our 6″ Modular Riser is another product designed to enhance attic application requirements in sod, tile, snow and other utility applications.

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Adjustable Solar Panel

Embedded angle bracket system included with seven locking stages. Low-profile with all the features.

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ABS & Aluminum

Engineered with features and performance unmatched in the industry.


Fully Adjustable Temperature and Humidity Sensor.

The SolaSensePRO™ is the only fully adjustable temperature (60-130 °F) & humidity (20-90 %rh) sensor on the market designed for the ultra-lower power DC (5V-36V) applications that can be set via onboard pin-switch to accommodate the environmental application the solar ventilation fan is installed for. The patent-pending SolaSensePRO™ is designed as an available accessory for the latest Solar Royal’s solar attic fans (SR1800). [For more Info Click-Here]

“If I had to develop an ideal fan, the SolarRoyal SR1800 is exactly the fan I would spec. Brushless motor and the two-piece design are absolutely key. The only fan that does not leak. Every other suppliers’ products leak without a skirt.”

“Two-piece design separates it completely from all the others and decreases installation time considerably. In my opinion, the best-featured and constructed solar attic fan on the market.” Never had a failure, and product support is great.”

“Great product and customer support. Not had a single failure working with the SolarRoyal SR1800 for years. Quick access to products and working with Roy is a joy.”

“Over 400 units and counting without one failure. Easy installation because of the two-piece design saves me a ton of time. Cost and product value with features beat any other solar fan we have installed. Customer service is top-notch and Vicky is always on it.”

“Our contractors love the two-piece design, which cuts installation time in half. Brushless motor and other great features wrapped into a solid package. Working with Roy is great and he really knows the industry.”


The Solar Royal (SR1800 Series) is robust, durable and still operates under minimal light conditions. Having received ‘kudos’ from numerous customers, builders and contractors stating they have never worked with a solar ventilation product that was able to operate continuously (longer) during such low light levels as the Solar Royal ventilation series. All also loving the ease of installation and full feature set. <see video>

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SR1800 Series
3D Demo Overview

Click to see why the SR1800 is the best quality & highest featured product on the market.  One look and you’ll see how!

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SR1800 3D Demo Installation Overview

Click to see why the SR1800 Series is redefining ease of installation and maintenance . No other fan is this easy to install and access.

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SR1800 3D Demo Hood Removal

Click to see how the patent-pending two piece design make the SR1800 Series so easy to install and also maintain & accessed as needed.

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SR1800 3D Demo 6″ Riser Overview

Click here to see another patent-pending feature which allows the SR1800 Series to be so modular in addition to why this is easily the most versatile product on the market.

Monocrystaline Panel

The highest quality solar panel technology available. Not Multicrystaline nor Polycrystaline but Monocrystaline, – period.

Monocrystaline Panel

What this means is that SolarRoyal cares about providing our customers with the best and another reason to encourage our customers to compare (dare-to-compare) against other products.

Brushless DC Motor

High-quality brushless DC motor is at the heart of every Solar Royal ventilation solution. Stay away from brushed DC motor solutions.

Why Brushless DC Motor?

If your shopping for a solar ventilation solutions, be sure YOU ONLY CONSIDER UNITS with BRUSHLESS DC motors.  WHY? Because anything else, regardless of warranty offered will not last as long as you think. <READ MORE ABOUT SOLAR FAN MOTORS>

Integrated Adjustable Panel

Not considered an extra feature. Therefore, our adjustable angled bracket is included and integrated into the SR1800 series solution at no extra cost.

Integrated Adjustable Panel

Embedded within the low profile design, not just screwed on top. Embedded angle bracket and at no extra charge. Others are charging +$40 extra or just offering an unattractive solution.

Easy Installation

Our patent-pending two piece design makes the SR1800 series the easiest solar powered ventilation to install on the market. This also makes it the easiest to maintain and access.

Easy Installation

Something no one thinks about but use a competitors product and then have to service it, GOOD LUCK!  It will require a complete dismantle of the product and worse your flashing has to be compromised.

Thermal Switch Included

Biometallic thermal weather switch that monitors the temperature and activates the unit when the temperature goes above ~ 75°F.

Thermal Switch Included

Something so simple should be included with all similar products but did you know that some competitors charge $20 to $39 for something that should be free.

Elegant Low Profile

Our Beautiful design and form. We truly care about how our products looks on your home or where-ever solar ventilation is needed.

Elegant Low Profile

REALLY! Look at some of the others: a round dome with a square solar panel screwed on top.  Then there are others that are so big, in our opinion, that they look like a restaurant grease-trap. Do you really want that on top of your home?
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The 65Watt (SRSF-65W10) solar attic ventilation fan offers fantastic performance and is incredibly versatile. This product utilizes our industry-leading, 35Watt, premium brushless ventilation solution as well as an additional ‘plug-n-go’ 30Watt remote solar panel. This powerful combination brings together an extremely powerful solar attic ventilation solutions. Whether you’re utilizing both panels side-by-side or placing them apart to optimize the greatest duration of sun exposure, Solar Royal’s 65 Watt solution will not disappoint, ventilating up-to 3555 sq.ft and up-to 2280 CFMs.

Product Info
  • Motor: Brushless 6-24VDC, proprietary, high-performance, direct current (DC) motor.
  • Fan Blade: 12-inch/5-blade ‘TurboProp’ styled customnylon/polymetric blade.
  • Performance:
    35 Watt: Up to2955 sq.ft and ventilation capacity up to 1825 CFMs, also with sones ≈ .5 – 3.0.
    65 Watt: Up to 3555 sq.ft and ventilation capacity up to 2280 CFMs, also with sones ≈ .5 – 3.5
  • Housing:
    Upper: automotive grade ABS, high impact composite material, and UV stabilizer with embedded fire retardant resin in addition to a wildlife guard.
    Base: System double-locks into upper housing and also has a heavy-duty solid one-piece aluminum (A6016) base for easier installation.
  • Model Info: [35Watt] Part Nr.:SRSF-35W10,
    UPC: 638142929530, [65Watt] Part Nr.:SRSF-65W10
  • Unit Dimensions: 24″ x 24″ x 7″
    Weight: 26 Lbs
    Box Size: 28″ x 28″ x 11″, Box Weight: 30 Lbs
  • Lifetime Warranty Upgrade:*Limited lifetime warranty service package also available online. (for registered residential)
  • Residential & Commercial 15 yr*Motor, solar and housing

Solar Products Warranty


Furthermore, our Solar Royal solar attic ventilation fan is first in a new line of products engineered to perform in extreme weather. It offers patent-pending innovation not previously available in the market. Furthermore, the product line is designed for use in virtually any residential, commercial and utility application. Solar Royal also has an incredible product road-map planned. In addition to risers and extenders, we offer curb bases, R9 panel bases, and metal roof bases. Also, watch our site for all the latest products in development.


Proper ventilation is a direct result of proper installation

Sizing Balance Orientation

CFM Required Net Air Ave-Pitch
Attic Size CFM Required Net Air
Intake (sq.in.)
1800 sq.ft. 1260 604 1 Fan
2100 sq.ft 1476 705 1 Fans
3500 sq.ft 2450 1176 2 Fans

Proper sizing and installation depend on a variety of factors including attic area, roof pitch, roof color and roof type which all factor into your specific ventilation requirements per the Home Ventilation Institute (HVI).