Hi Tim,
Sometime back up this thread we talked about the possibility of blocking some or all of the attic ventilation in order to make it a more efficient heat collector. This would probably require adding some form of forced ventilation that comes on only when the attic humidity goes above a certain level to avoid moisture problems.
I was walking through Costco yesterday and noticed that they had a solar driven attic fan with a fancy controller. One of the features of the controller was that it can automatically turn itself on when the attic humidity goes above a certain level. In addition to being powered by solar, this fan also plugs in to 120VAC, so it can provide the needed ventilation even if there is no sun.
Just thought I would pass this on.
Thinking seriously about trying it in my attic.
Wondering if I just provided a way to shut off the upper vents (only a few of these), if I could just leave the soffit vents open and still stop most of the attic vent flow?
Gary
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