Proper Roof Ridge Vent Installation

How do you pick the right attic vent.

Proper roof ridge vent installation.

Do not use with gable end louvers turbines roof vents or power vents. To achieve a balanced system with cobra 4 1 21 m plastic ridge vents there must be an air intake system i e soffits fascia or undereave intake vents. These vents are laid along the ridge of the roof and can come as a series of separate pieces or one long piece. For ridge vent to function properly it must be the only exhaust vent for the vented attic space.

One of the fundamental steps is to nail one side of the ridge vent before nailing the other sid. 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. Several ridge vent installation tips are given in this video. The first step is to check out this 60 second video and learn about the 300 1 rule the difference between intake and exhaust ventilation and why proper ventilation is so important to get right to help calculate your attic ventilation needs visit gaf ventilation calculator.

A ridge vent is a ventilation strip that is placed along the ridgeline of the home. Vents evenly spaced underneath the roof provide intake. It is important that air movement occurs and is not impeded by any framing members of the. Touch your ceiling on a warm sunny day.

This gives you 450 square inches of total exhaust. To calculate an example of exhaust and intake use 25 feet of roof ridge vent. Then they lap the peel and stick existing felt and new housewrap over the step and kick out flashings so that any water hitting the wall is directed onto the roof instead of behind the flashing. Before the ridge vent installation begins the crew installs pieces of peel and stick membrane to patch under the existing felt paper on the adjacent wall.

A hot ceiling tells you that the attic is acting like a solar oven raising your cooling bills and cooking. Or it may have gable vents which are louvered openings at the top of gables. Position the aluminum ridge vent along the reference line. Since exhaust and intake must be equal 450 square inches of total intake is required as well.

Fasten the vent to the roof decking and rafters or trusses by nailing through the flange on both sides of the vent using the nails and nail spacing recommended by the manufacturer. Your roof may have a ridge vent which is a low profile continuous roof air vent running along the peak of the roof. Because the vent material will look different than the shingles some homeowners may choose to have their roofer shingle over the ridge vent once it s installed.