Roof Ventilation Channels

Wide air channel for ventilation air.

Roof ventilation channels.

Improper attic ventilation prevents the free flow of air from the soffit to the exhaust vents which reduces insulation efficiencies and accelerates moisture problems. The flanges are about 1 1 4 in. Deep so we just need panels that span between the webs. All the ventilation openings need to be protected to prevent rain or snow infiltration.

Provent may be installed prior to the soffit panel without fear of blow out. Since the roof is framed with trusjoist i joists the baffles are easy to fabricate and install. In a well ventilated attic cool air enters through the intake vents and carries warm moist air to the exhaust vents above. The provent rafter vent channel provides an unobstructed air channel through your insulation.

This prevents the warm air from building up and allows the snow and ice to melt evenly on the roof. When the wind is blowing these ventilation channels allow air to move from the soffit vents to the ridge vents. The 23 1 2 in x 46 in ventilation system features polystyrene construction which is lightweight and moisture resistant. Durovent with baffle attic vent channelthe durovent attic ventilation system with built in baffle helps keep attic air moving.

Provent may be installed prior to the soffit panel without fear of blow out. Roofs often require ventilation channels directly under the roof sheathing either for a short section of the roof for example near the eaves or for the entire roof from soffit to ridge. Improper attic ventilation prevents the free flow of air from the soffit to the exhaust vents which reduces insulation efficiencies and accelerates moisture problems.