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vent1

vent1

interior of ridge vent

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Albums: AP greenhouse

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Comment by Rick Stillwagon on October 18, 2011 at 9:07pm
Yes the vents are hinged.  We still have to attach automatic openers.  They are a piston that has a wax inside, as the wax heats up it expands and opens the vent, so they require no electricity.
Comment by Rich Milliron on October 18, 2011 at 8:47pm
So do these vents open up for the summer and close up tight for the winter?

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