Outdoor ceiling fans can be a great way to keep your patio, porch, or outdoor living space comfortable. However, they can also be vulnerable to damage from wind and weather. Protecting your outdoor ceiling fan from wind is important to help it last. Here are some tips on how to protect outdoor ceiling fan from wind damage.
Choose the Right Fan for the Location
When selecting an outdoor ceiling fan, opt for one that is designed specifically for outdoor use. Look for fans marketed as wet, damp, or outdoor rated. These fans will have features to withstand moisture, humidity, and weather exposure. Some key things to look for include:
- Rust-resistant blades: Outdoor fan blades are made from materials that resist rust and corrosion such as coated metal, composite wood, or ABS plastic. This prevents moisture damage over time.
- Water-resistant motor housing: The motor should have a sealed casing to prevent water intrusion. Some models also include lubricated motors to reduce wear.
- Durable finish: Outdoor fans have powder-coated, galvanized or stainless steel finishes to prevent peeling, cracking, or corrosion.
- Wind resistant: Many outdoor ceiling fans include reinforced mounting brackets and wind-resistant blades designed to withstand higher wind speeds.
Opt for an Energy Star rated outdoor ceiling fan for efficiency. Choose a fan size and blade span appropriately for the size of the outdoor area. Larger blade spans move more air and are best for bigger spaces.
Select the Right Mounting Location
Install the outdoor ceiling fan in a covered location protected from direct rain, snow, and excessive wind. Ideal spots include:
- Covered patios
- Breezeways
- Porch ceilings
- Pergolas or gazebos
- Underhangs of roof eaves
Avoid mounting the fan directly where it will be exposed to water from sprinklers or downspouts.
The location should allow for optimal airflow so the fan is not fighting wind patterns. Do not place it right next to a wind tunnel area that will overpower the fan’s airflow.
Use the Correct Mounting Method
Use the manufacturer’s provided mounting bracket and hardware for proper installation. This is usually a threaded rod and nut system with a mounting plate to attach to the ceiling junction box and hooks to hang the fan.
For wood ceilings, ensure the provided lag bolts are long enough to penetrate at least 1.5” into a ceiling joist. For concrete ceilings, use appropriate concrete anchors.
Do not use the plastic mounting components intended for indoor dry locations. Invest in metal mounting hardware designed for humid, damp areas to safely hold the fan weight.
Pay Attention to Blade Angle
Most outdoor ceiling fans allow you to adjust the blade pitch angle. Optimal blade angle helps the fan work efficiently without excess wobble. It also reduces drag that can be made worse by wind.
Follow the manufacturer guide for adjusting the blades to the best angle, usually between 12 to 18 degrees. Ensure all blades are set at precisely the same angle to optimize airflow. Testing different angles can help identify the blade pitch that generates the least vibration.
Use a Sturdy Wiring Method
Use heavy duty, outdoor-rated wiring and conduit for supplying power to the outdoor ceiling fan. Consult local electrical codes for specifics on required wiring method and size. This often includes:
- Weather-resistant wire: Use wiring listed for wet locations, like THWN or XHHW wire.
- GFCI protection: Outdoor fans should have a ground fault circuit interrupter (GFCI) for safety.
- Junction box: Enclose wiring connections in a covered electrical box labeled as “wet location” rated.
- Conduit: Run wiring through a conduit pipe like liquid-tight flexible metal conduit for protection.
Proper outdoor wiring prevents voltage drops over long runs and protects electrical connections from moisture.
Install Guy Wires for Extra Wind Support
For extremely windy areas, guy wires can provide added bracing and support to prevent the fan from swaying or vibrating excessively. Guy wires are cables anchored into structural framing and connected to the fan assembly.
- Use corrosive resistant guy wires designed for outdoor use, such as stainless steel aircraft cable. Do not use makeshift solutions like rope or string.
- Attach guy wires at evenly spaced points around the mounting bracket perimeter. Use the provided mounting holes if available.
- Run wires at a 45 degree angle down to securely installed screw eyes or anchors in walls, posts, or overhang framing.
- Adjust tension on the wires to provide support while allowing the fan to operate and rotate freely.
- Make sure wires do not interfere with or get tangled in the rotating fan blades.
Properly installed guy wires are taut but not overly tight. They prevent the fan from teetering while allowing it to spin and oscillate freely.
Take Wind Precautions When Not in Use
When wind speeds are forecast to exceed the fan’s wind tolerance rating, take precautions by turning the fan off. Most outdoor ceiling fans have a wind tolerance of around 20-30 mph.
- During periods of high winds, set the fan to the off position using the pull chain switch.
- Turn off power to the fan at the GFCI breaker or by removing a fuse.
- Some fans have locking mechanisms on the mounting bracket to prevent blades from spinning during wind. Engage this lock function if available.
- If wind speeds will exceed 45 mph, consider removing the fan blades entirely and storing them until the storm passes.
Taking the fan out of service keeps it stationary and prevents spinning blades from potential wind damage.
Inspect and Maintain the Fan Regularly
Like any outdoor product, periodic inspection and maintenance is key for longevity. Make it part of seasonal maintenance routines.
- Check that all hardware remains tight, including fan mount, blade arms, and wire connections. Tighten as needed.
- Clean fan blades and housing to prevent dirt buildup, corrosion, and mold growth.
- Lubricate moving parts like bearings and oscillating joints. Use lubricant suitable for outdoor motors.
- Check guy wires for proper tension and signs of wear. Adjust or replace degraded wires.
- Inspect the finish for any cracks or peeling. Touch up paint as needed.
- Test the fan speed control and reverse function.
- Replace weathered or damaged components like blades, hardware, switches, and wiring.
Taking proper care of an outdoor ceiling fan through regular inspection and cleaning keeps it running smoothly for many years. Pay attention to any excessive wobbling, squeaking, or grinding noises as signs something may need repair. With periodic maintenance and using wind-resistant installation methods, outdoor ceiling fans can stand up well against gusty conditions.
Frequently Asked Questions
How do I know if my outdoor fan is rated for wet locations?
Check the fan specifications and look for terms like “damp rated”, “wet location”, or “outdoor” use. There should also be a UL listing for wet location use. The fan components should be corrosion resistant and water-resistant.
What size blade span should I choose?
Larger blade spans between 50-60 inches work best for moving air in wider outdoor areas. For smaller spaces like porches, a blade span around 36-42 inches is ideal.
How can I determine the best blade pitch angle?
Start at an angle around 15 degrees. Check for any excess wobble. Try increasing or decreasing the angle in increments of a few degrees to find the “sweet spot” with minimal vibration.
How do I clean an outdoor ceiling fan?
Use a lint-free cloth with a mild detergent solution and wipe down all surfaces. Rinse with fresh water and dry with a microfiber cloth. Avoid pressure washing.
When should I turn my outdoor fan off for wind?
When wind speeds are expected to exceed 30 mph sustained, shut the outdoor fan off at the pull chain switch or circuit breaker. Take added precautions above 45 mph.
How do I lubricate an outdoor ceiling fan?
Use a lightweight machine oil made specifically for electric motors. Put a few drops on friction points like bearings. Remove excess oil to prevent dust buildup.
Can I reinforce an existing mount to be more wind resistant?
Adding bracing to an existing mount is difficult. It’s best to use a fan-rated reinforced mounting bracket designed for windy locations.
How often should I inspect an outdoor ceiling fan?
Inspect at least twice per year in spring and fall. Check mount security, blades, wiring, lubrication, finish, and functionality. Tighten and clean as needed.
What gauge wiring should be used for an outdoor ceiling fan?
12 or 10 gauge stranded copper wire rated for wet locations is ideal. Use conduit for wiring runs to protect cables. Include a GFCI breaker on the circuit.
Conclusion
Installing an outdoor ceiling fan in a windy spot presents some challenges compared to indoor fans. However, with careful selection of fan models rated for damp locations, proper installation methods, wind-resistant mounting, and regular care, an outdoor ceiling fan can thrive for years even in gusty conditions. Pay close attention to blade construction, finishes, wiring, and mounting brackets when choosing a fan. Locate it in a protected space and use sturdy mounting hardware secured into framing. Adjust blade angles for optimal performance. Turn off the fan when winds exceed tolerance levels. And remember to perform scheduled maintenance and inspection to keep all components in good working order despite weather exposure and use. With the right guidelines, an outdoor ceiling fan can be appreciated without fear of wind damage for many seasons.