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Abstract
For every 300 square fete of attic floor space being ventilated, one square foot(144 square inches) of net free air flow must be present in both inlet and outlet vent capabilities. For areas insulated without a vapor barrier, that ratio doubles to 1/150.
For every 300 square fete of attic floor space being ventilated, one square foot(144 square inches) of net free air flow must be present in both inlet and outlet vent capabilities. For areas insulated without a vapor barrier, that ratio doubles to 1/150.
Date
7/2003
7/2003
Author(s)
Ron Hungarter
Ron Hungarter
Page(s)
8-9
8-9
Keyword(s)
attic ventilation; roof vents
attic ventilation; roof vents