Without ventilation unfinished attic spaces can end up having stagnant air.
Attic soffit fan.
An attic s intake vents are most commonly installed directly in the soffit either as individual vents spaced every few feet or as one continuous perforated soffit running the entire length of.
These vents allow outside air to enter the attic at the lowest point of the roof along the underside of the eave.
Adding attic vents is a simple matter of cutting holes and installing vents.
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Without any air movement temperatures in the attic soar in summer and plunge in winter.
Photos 1 6 show how it s done.
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Your soffit ventilation actually needs to be considerably more than 336 net square inches to supply a 700 cfm fan system or the fan is going to pull the air it needs through unsealed holes and gaps in the attic floor from the conditioned living space.
When passive methods aren t sufficient an electric fan installed at a soffit vent draws additional outside air into the attic to augment the chimney effect.
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22 in x 6 in galvanized steel eave vent item 2180323 model ev622 1 8ev622 1 8.
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Should i add soffit vents.
Set your store.
But before you cut any holes plan the locations of the attic vents.
If your home is fitted solely with small gable end vents or a ventilator high in the roof you might want to consider adding soffit vents to increase airflow.