An attic with balanced ventilation has undereave or soffit vents which allow fresh air into the attic.
Attic rafter vent insulation.
Installing baffles from a soffit vent and up the rafter bay allows you to insulate every available inch of attic floor space.
Without baffles you must keep vents clear of insulation which means.
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Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place.
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 fresh air flows up between rafters to the ridge where a ridge vent roof vents or gable vents allow the air to exit.
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Attic rafter vent baffles are essential for the health of your roof.
Soffit vents are the small metal or plastic grates you probably have seen under the eaves of houses.
For the same reason insulation shouldn t touch the roof s underside.
The provent rafter vent channel provides an unobstructed the provent rafter vent channel provides an unobstructed air channel through your insulation.
If your attic is going to be converted into livable space then you will need to insulate the roof rafters.
The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.
Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no.
If insulation is allowed to bunch against the inside slope of the roof between the rafters air will be blocked before.
The baffles will allow circulation to continue even though insulation has been installed directly in the.
They allow the fresh air to travel up under the roof to the ridge or gable vents keeping the roofing materials dried out and in good working order.
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.
Once they are in place you can then place the batts or blankets or blow insulation right out to the very edge of the attic floor.