How to Install a Roof Ridge Vent

Slot Cut, Vent Placement & Ridge Cap

This guide walks you through installing a continuous ridge vent for balanced attic ventilation. Cut a 1.5-2 inch slot along each side of the ridge (leaving 6 inches at each end uncut), set the ridge vent product over the slot, fasten with the included nails into the rafters, and cap with hip-and-ridge cap shingles. The ridge vent must be paired with adequate soffit intake (NFA matched 50/50) for the system to actually pull air through the attic. Pair with our Vents Calculator.