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mybeach

Venting a cathedral ceiling - has anyone installed a solar powered vent?

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Looking to eliminate heat through the roof of a cathedral ceiling. How do you guys do it? Investigating a solar powered fan, anyone have a good brand to suggest? The room is about 500 sq ft. total, 16 ft to the peak, 4/12 pitch.

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Does the solar fan go through the roof? An operating skylight, or a ceiling fan turning clockwise are other options to vent, or move the hot air.

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Vented soffit, proper vent baffles in each bay, ridge vent. This insures that you have a complete path for hotter air flowing out the top to be replaced by cooler air sucked in from the bottom. If you don't have this path, the power vent won't help you. If you do have this path, the power vent is unnecessary.



 



Proper Vent



 



1000


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 If you you are talking about the space inside the building envelope, If you vent out the hot air the space will simply be re filled with the cooler air from lower in the room, which will heat up and  get vented, out assuming your vent has a thermostat. Your cooling system will then have to cool the new air at the lower level, the cool air at the top will gain heat and  the cycle will continue. You will always have heat gain proportionate to insulation, and it will always accumulate at the high points. If the room is too hot you need greater cooling capacity. If you get drafty puffs of hot air you can install a ceiling fan which will keep the air circulating enough to prevent hot bursts. No way out of the fact that you are conditioning a large space unless you drop the ceiling, create a vented attic and insulate appropriately. A venting skylight will help if you are not running a/c and no power would be needed.



WP


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