Or it may have gable vents which are louvered openings at the top of gables.
Proper roof ridge vent installation.
It is important that air movement occurs and is not impeded by any framing members of the.
For ridge vent to function properly it must be the only exhaust vent for the vented attic space.
Several ridge vent installation tips are given in this video.
Since exhaust and intake must be equal 450 square inches of total intake is required as well.
Add any connectors and end caps that came with your ridge vent system to ensure the vent is watertight.
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.
To calculate an example of exhaust and intake use 25 feet of roof ridge vent.
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Do not use with gable end louvers turbines roof vents or power vents.
A ridge vent is a ventilation strip that is placed along the ridgeline of the home.
Vents evenly spaced underneath the roof provide intake.
These vents are laid along the ridge of the roof and can come as a series of separate pieces or one long piece.
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.
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.
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.
Your roof may have a ridge vent which is a low profile continuous roof air vent running along the peak of the roof.
A hot ceiling tells you that the attic is acting like a solar oven raising your cooling bills and cooking.
Position the aluminum ridge vent along the reference line.
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.
Touch your ceiling on a warm sunny day.
Multiply it by 18 square inches the net free air per foot of ridge.
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.
