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Identifying the source of noises is your first step to soundproofing a room without overspending. Generally, sound comes from inside or outside of the house. Inside noises include creaking floors, living noises like TVs in the living room, cooking sounds, or kids being kids. External noises generally include incremental weather, disturbing neighbors, and street traffic. Inside noises require you to soundproof floors, ceilings, and doors, whereas outside noises may require you to soundproof your attic, windows, and walls facing the streets.

There’s no reason why you can’t install a ceiling fan anywhere in your home, such as in living rooms, offices, bedrooms, and dining areas. Most bathrooms already have ventilation and don’t need a ceiling fan. For safety purposes, avoid installing a ceiling fan where the blades will be less than eight feet from the floor, near bunk beds, or anywhere else they may hit nearby objects.

If you’re replacing an old fixture with a ceiling fan, you usually won’t need a permit, but if your electrician runs new wiring for the fixture, you likely will need a permit. Building permits are necessary in most municipalities if you’re making changes to your electrical system, so even if you have partial wiring run to the area and need new wiring installed for added functionality, you’ll probably need a permit. Your electrician should be able to let you know if you need one, and they’ll typically file the paperwork for you.

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.