Products / SmartVent

SmartVent is DCI Products' tapered, under-shingle corrugated plastic vent installed along the eave over a 1 in. slit in the roof deck, used as attic intake (or as exhaust off a peak) where soffit vents are missing or blocked. ICC-ES report ESR-2484 describes 10 1/2 in. by 3-foot pieces that taper from 3/4 in. at the leading edge with factory-applied weather guard fabric, a net free ventilation area of 8.9 square inches per linear foot, a 4:12 minimum roof slope, and installation on buildings in areas with a maximum basic wind speed of 130 mph and mean roof height of 40 feet in Exposure D under the 2021 and 2018 IBC; DCI's own product page rates it at 9 NFA per foot. The report lists use with asphalt shingle, cedar, slate, cement tile, clay tile and metal shingle roof coverings.