Provide continuous soffit or eaves intake venting as we describe at roof venting.
Roof soffit intake.
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Roofing attic ventilation.
These are the most common intake vents.
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 ratio of soffit intake to roof outlet should be at least 2 1 to avoid unnecessary these heat losses from the building.
Ridge vents and gable vents serve dual purposes and operate as both intake and exahust vents.
This is probably the most costly solution to an un vented no overhang roof design and is practical only in cases where the building is being modified for other reasons.
A serious error is a roof outlet vent net free area that exceeds the air inlets at lower roof edges or eaves.
Soffit vents are one of the most popular intake vent styles.
Air vent 2 3 in.