Exhaust Fan Hinges
Exhaust fans are made of very soft aluminum and can be damaged during the cleaning or repair process just by taking an unhinged fan off and setting it on the roof. Hinging eliminates the need to remove the fan as it can be tilted back to allow complete access to your system. Fans that are not hinged can become out of balance and begin to vibrate and make noise. Electrical wiring is more susceptible to damage in a fan that is not hinged.