this post was submitted on 01 May 2024
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Handyman suggested cutting hole in 1330 sq. ft. attic for second attic ventilator. Does this make sense? (lemm.ee)
submitted 6 months ago by TheDorkfromYork@lemm.ee to c/homeimprovement@lemmy.world
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General info: Looking to get current attic ventilator fan replaced. The attic is about 1400 sq. ft. Current attic ventilation fan is a foot from the ridge of the roof. Live in USA.

Handyman wants: To install two 1500 CFM fans. Two 120 volt 20amp dedicated circuits, one for each fan. He wants to install the second fan 4 feet away from the current fan. He stated that the attic ventilator fan would need to be replaced within 6 years.

My questions: Would two fans be better than one fan? Would I need two 120 volt circuits to run two fans? Is there an attic ventilator that has a user replaceable fan?

Thank you in advance for any help.

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[–] pdavis@lemmy.world 2 points 6 months ago

I thought ridge vents were all the rage these days. I installed ridge vents and then put up Reflectix Reflective Roll Insulation from the soffits up to 12-18 inches from the ridge. It reduced the heat in the attic by a noticeable amount and wasn't too expensive or difficult to install. I also blew in additional insulation. I plan on adding additional venting in the soffits in the future. My experience is that fans fail, require maintenance, use energy, and tend to only cool the attic off in certain areas if not well planned out with supporting architecture and venting.