Under Roof Ventilation

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.

Under roof ventilation.

In mixed climates ventilation serves either role depending on the season. 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. Because the roof isn t in play here it doesn t matter how many hips valleys dormers or gables there are. Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.

A key benefit of venting the attic is that the approach is the same regardless of how creative your architect got with the roof. 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. Hot air exhaust vents located at the peak of the roof allow hot air to escape. A ridge vent is a ventilation strip that is placed along the ridgeline of the home.

Roof vents will provide about half of the vent area and soffit vents the other half. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. This cap features both a back draft damper and bird screen preventing outside air from entering the home and birds and small pests from entering duct work. See the benefits of attic ventilation a new roof is more than just shingles.

The open area of a vent is sometimes listed on the roof air vent as nfva net free vent area. It is important that air movement occurs and is not impeded by any framing members of the. If not measure the size yourself. Length of roof x width of roof x 1 2 height of the roof m3 roof size.

Soffit vents are one of the most popular intake vent styles. Air vent high efficiencypower attic fan 1470 cfm weatherwood galvanized steel electric power roof vent. It is compatible with 3 or 4 ductwork and includes a 3 to 4 adapter for convenience. The rvk1a steel roof cap kit is an the rvk1a steel roof cap kit is an easy to install vent for ventilation fans bath rec room home gym etc.

The combination of both results in a noticeably lower temperature during summer. The building codes and building science for.