Latest Discussions : Roofing & Siding

BV002448

07:09PM | 10/30/13
the house was designed in nj with a ridge vent and soffit vents.
previous owner installed a power attic fan.should i leave the fan on or turn it off and allow the vent system to work?

Duanethebuilder

11:56PM | 11/03/13
Member Since: 11/03/13
5 lifetime posts
You should disconnect the attic fan, make sure soffits are clear and open and that the ridge vent is properly installed. The concept is the outdoor air will be drawn into soffit vent into attic and rise up to the rige where it then vents out of the attic , this process is call confection, het rises and draws in the cooler outdoor air from the soffits to replace the hot attic air. The problem with the fan is it will draw in air from the ridge ( mostly) and vent outside, the problem with that is you are now not coolling the lower areas of the roof. Good luck

Duanethebuilder

11:58PM | 11/03/13
Member Since: 11/03/13
5 lifetime posts
Please make sure you have a qualified electrician disconnect the attic fan.


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