Under Roof Ventilation

It comes on an easy to install flexible mesh.

Under roof ventilation.

In mixed climates ventilation serves either role depending on the season. Roof vents will provide about half of the vent area and soffit vents the other half. Because the roof isn t in play here it doesn t matter how many hips valleys dormers or gables there are. The open area of a vent is sometimes listed on the roof air vent as nfva net free vent area.

Mesh roll ridge vent in black nail gun version when installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. The building codes and building science for. The building code lets you reduce that by half under some conditions but more roof ventilation is usually better. A ridge vent is a ventilation strip that is placed along the ridgeline of the home.

A key benefit of venting the attic is that the approach is the same regardless of how creative your architect got with the roof. 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. The idea of roof vents existed for hundreds of years with natural vents employed in chinese buildings during the tang dynasty natural ventilation ducts in the buddhist monks caves and wind catchers incorporated in arabian architecture. Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.

See the benefits of attic ventilation a new roof is more than just shingles. All intake vents should be installed on the low end of the roof or under the eaves. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. Soffit vents are one of the most popular intake vent styles.

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. Since soffit vent are installed under the eaves they run the risk of being blocked off on the interior side of the vent by attic insulation. 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. Cobra exhaust vent 10 5 in.

This problem can be averted by doing a visual inspection of the attic from the inside to make sure that all soffit vents. If not measure the size yourself.