Our solar attic fans utilize a high-efficiency solar panel to power a DC motor, drawing hot air and moisture out of your attic. This reduces your home's cooling load, lowers energy bills, and prevents mold growth and roof damage caused by trapped moisture.

Solar-only fans run purely on free solar energy during the day. AC/hybrid solutions include an adapter that automatically switches to home grid power (AC) when the sun goes down or on heavily overcast days, ensuring continuous 24/7 ventilation if needed.

Standard solar models require sunlight to operate and will automatically slow down or stop when it's dark or heavily overcast. If you need night-time operation, we highly recommend choosing our AC/hybrid models or adding our optional backup power kit.

Yes, LANGY attic fans come equipped with an intelligent thermostat control system. The fan will automatically turn on when attic temperatures cross your preset threshold, conserving energy when ventilation isn't required.

A:Roof-mounted fans are installed directly onto the roof slope, requiring a hole to be cut in the roof. They are perfect for homes without existing vents. Gable fans are mounted inside the attic behind an existing gable vent/louver. They don’t require roof cutting, making installation quicker and keeping the solar panel separately mounted on the roof for optimal sun exposure.

A: If you have basic hand tools and are comfortable working on a roof/ladder, our fans are designed for straightforward DIY installation. However, for roof-mounted models where proper sealing is critical to prevent leaks, hiring a licensed contractor or roofer is recommended.

A: You can download complete PDF manuals directly from our "installation" page. We also provide step-by-step installation walkthrough videos on our official YouTube channel to guide you through the process.

A: Our roof fans feature a heavy-duty, weather-resistant flashing unit. During installation, always slide the top half of the flashing under the shingles above it, and apply a generous amount of high-grade waterproof roofing sealant around all edges and screws.

We offer a robust warranty to give you peace of mind: a 10-year warranty on the solar panels and housing, and a 5-year warranty on the brushless DC motor. If any part fails due to a manufacturing defect within this window, we will replace it free of charge.

We offer a 30-day money-back guarantee. If you are not satisfied with your purchase, you can return the product within 30 days of delivery. The item must be unused, in its original packaging, and in resalable condition.

Our roof fans feature a heavy-duty, weather-resistant flashing unit. During installation, always slide the top half of the flashing under the shingles above it, and apply a generous amount of high-grade waterproof roofing sealant around all edges and screws.