Per the 2009 irc r806 3 vent and insulation clearance insulation shall not block the free flow of air.
Attic soffit vents baffles.
Installing baffles from a soffit vent and up the rafter bay allows you to insulate every available inch of attic floor space.
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Baffles ensure proper airflow into your attic space.
Without baffles you must keep vents clear of insulation which means.
From left to right air flows through the soffit vents up over the baffles allowing for the required roof venting.
The code associated issues.
Without fresh air from the soffit vents your roof top vents such as.
An attic with balanced ventilation has undereave or soffit vents which allow fresh air into the attic.
Without an attic baffle there will not be any air space for fresh air to enter the attic from the soffit vents.
If insulation is allowed to bunch against the inside slope of the roof between the rafters air will be blocked before.
So why install a baffle.
Cathedral vaulted or any ceiling that has insulation blocking the airflow from the soffit vents to the attic needs an attic baffle in each rafter bay.
Baffles prevent vents from getting clogged by insulation and ensure a clear channel for outside air to move into the attic through soffit vents.
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Basic functions of baffles baffles are chutes that when installed properly can provide a channel for air to flow from your exterior soffit vents up into your attic space.
Baffles are installed in the attic or should be wherever there is an intake vent soffit vent.
If you opt not to have an attic baffle you could potentially be leaving your home to additional debris and moisture to enter through the.
Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.
These specialty vents do not affect the.
The fresh air flows up between rafters to the ridge where a ridge vent roof vents or gable vents allow the air to exit.