Attic Soffit Vents Baffles
Without an attic baffle there will not be any air space for fresh air to enter the attic from the soffit vents.
Attic soffit vents baffles. Baffles are installed in the attic or should be wherever there is an intake vent soffit vent. 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. Durovent durovent 22 in x48 in raft vent 10 pack. From left to right air flows through the soffit vents up over the baffles allowing for the required roof venting.
The fresh air flows up between rafters to the ridge where a ridge vent roof vents or gable vents allow the air to exit. Without baffles you must keep vents clear of insulation which means. An attic with balanced ventilation has undereave or soffit vents which allow fresh air into the attic. Per the 2009 irc r806 3 vent and insulation clearance insulation shall not block the free flow of air.
These specialty vents do not affect the. Soffit vents and baffles work in tandem together and you will usually find attic baffles between the rafters or the roof sheathing in order to create protection for the soffit vents. 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 ensure proper airflow into your attic space.
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 prevent vents from getting clogged by insulation and ensure a clear channel for outside air to move into the attic through soffit vents. That airflow is intended to churn the stale air in. So why install a baffle.
Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof. The code associated issues. If insulation is allowed to bunch against the inside slope of the roof between the rafters air will be blocked before. Installing baffles from a soffit vent and up the rafter bay allows you to insulate every available inch of attic floor space.