Get matched with top bathroom fan installation pros in Craig, MO

Fan power is measured by CFM, or cubic feet per minute. For every 1,000 feet of square footage in your attic, you need a minimum of 700 CFM. Steeper roofs may need larger fans or about 840 CFM.  You can figure the size of attic fan you need by multiplying the square footage of your attic floor by 0.7. (multiply by 1.2 for a steep roof and 1.15 for a dark roof). That number is the CFM required for your fan to run efficiently.

Before committing to this new project, you’re likely weighing the pros and cons of attic fans. The good news is that typical roof vents can only ventilate 150 to 300 square feet per unit, whereas a single attic fan can circulate enough air to vent an entire attic. By moving large volumes of air within and out of the attic space, an attic fan can lower the temperature by 15 to 40 degrees Fahrenheit and reduce moisture to prevent mold and mildew.

There are many types of ceiling fans, each with specific features and advantages. Standard ceiling fans are a traditional choice suitable for most spaces and can be made from materials like plastic, wood, metal, or fiberboard. For rooms with low ceilings, low-profile fans are a better fit. Other specialized types include smart fans, which you can control with a smartphone or voice commands, and dual-motor fans that provide increased airflow in multiple directions. For energy savings, Energy-Star certified fans can be up to 60% more efficient than standard models, helping to lower your utility bill. You can also find fans with built-in lights, fans with retractable blades, and large ceiling fans designed for spacious rooms with ceilings between 10 and 25 feet high.

On average, a bathroom fan lasts between five and ten years. The fan's lifespan depends on its quality, installation, and frequency of use. You can extend its life with regular cleaning and by promptly addressing any issues. Common signs that you need a new fan include mold growth, a burning smell, unusually loud noises during operation, or lingering odors in the bathroom. If your fan is no longer working as well as it once did, consider replacing it. The cost to install a new bathroom fan is typically between $240 and $550.