Spacing For Roof Vents

Choose one of the following products to meet the recommended exhaust nfva of 528 square inches.

Spacing for roof vents.

27 lineal feet required. Soffit vents or under eave vents are installed on the underside of the roof that hangs over the siding the eaves. You need to have an equal number of vents located at the bottom of the attic or under the roof easement as you have at the top of the attic near a gable or ridge. From the roof s peak.

Prior to installing the ridge vent a 1 inch wide strip of roof decking is cut out along both sides of the ridgeline to allow for air movement through the vent. Soffit vents are one of the most popular intake vent styles. Drive nails up through the sheathing and shingles to mark roof air vent locations. Ventsure 4 foot strip heat moisture ridge vent with weather protector moisture barrier.

A ridge vent is a ventilation strip that is placed along the ridgeline of the home. Ventsure 4 foot strip heat moisture ridge vent. They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic. Center nails between rafters 18 in.

Roof vents will provide about half of the vent area and soffit vents the other half. Next divide the square footage of vent space required by the square footage of soffit vent you have selected. They come in a number of shapes such as squares rectangles and triangles. Mark attic roof air vent locations.

How to install roof vents. Gable vents as the name suggests attach to the gables rather than the roof itself and go through the siding.