It's not just about letting heat out in summer, they are more valuable in the winter. If you've ever noticed the attic on Sticks and Bricks always have venting. Some in the eves, some in the middle crest of the roof and some just have vents here and there. Heat is an issue, but if you don't vent the humidity in the winter it will settle in your insulation and cut the R value way down.
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Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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