i would like to construct 4x 12VDC computer fans under my roof vent. These would be wired in parallel to a 12V solar panel (Wattage depending on size of fans). I know this would only work during the day, but that’s really all I need. My question is, would this make a difference in the temp in the attic or am I wasting my time. Really, I don’t want to spend $ 300 of a pre-made kit and have to replace the vent.
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{ 3 comments… read them below or add one }
Totally cool idea, and yes it will make a diff
I’m a roofer, any fan unit will help to exaust the heat from your attic, but make sure you have the proper vents to begin with; sofit, ridge, and you obviously have gables. They all work together.
All attics are hot in summer and cold in winter. So why are you worried about it?
But if you are, First make sure the vents at the eves of the attic are clear. that way you have movement of air.
Second, if your still concerned you can put vents in the side walls of your attic.
Third and most important- make sure you have lots, and I mean 10″ to 14″ of insulation in the cealing of the room below the attic.(the attic floor) This will help keep you cool in summer and warm in winter.
Unless there is a specific problem with the construction of your house and roof I would recomend the K.I.S.S. plan. (keep it simple _____)
The attic will ventalate itself, if you keep the vents clear.