Propper Attic Ventilation With A Ridge Vent

Rafter vents come in 4 foot lengths and 14 1 2 and 22 1 2 inch widths for different rafter spacings.

Propper attic ventilation with a ridge vent.

They re most effective when used in conjunction with a continuous ridge vent. Static vents often protrude from roofline thanks to. 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.

While this provides an outlet for air flow it does not provide an inlet to complete the convection cycle needed for proper ventilation. Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent. To install the rafter vents staple them directly to the roof decking. We see many older homes with no attic ventilation and some that have recently had ridge vents installed.

Soffit vents when paired with ridge vents provide complete ventilation for your whole roof surface. It is important that air movement occurs and is not impeded by any framing members of the home. A ridge vent is a ventilation strip that is placed along the ridgeline of the home. Soffit vents come in several sizes and styles including small round discs and rectangular grilles.

Combining an attic power vent fan with a ridge vent is usually not recommended because. These vents are laid along the ridge of the roof and can come as a series of separate pieces or one long piece. Installation of this type of attic ventilation involves leaving a gap in the sheathing along the ridge and covering it with a perforated vent. These vents allow outside air to enter the attic at the lowest point of the roof along the underside of the eave.