Attic Soffit Vent Baffles

The chart below shows the effect of screen size and obstructions on net free area for various types of soffit vent designs.

Attic soffit vent baffles.

1 4 and up 100. 1 8th inch mesh has a net free area of 80 percent. Simply installing raft r mate attic rafter vents offers year round performance and helps to prevent ice dams in winter. Enter square footage calculate or enter the square footage of the attic or area to be vented.

Baffles establish a channel for air to circulate between the insulation and the roof sheathing. If this does happen the soffit vents will not function as best as they should and therefore supporting the formation of mold or fungi. Raft r mate attic rafter vents have a high resistance to moisture which means they will not deteriorate over time. Master flow 2 in.

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. Installing with just 6 staples and perforated to adapt for varied roof truss spacing it provides efficient airflow in your attic. 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. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.

As with attic floor insulation moisture and heat removal are the reasons for creating proper air. Master flow 15 amerimax home products 1 deflect o 1 gibraltar building products 1. More ways to filter. Amerimax home products accuvent is designed for all attic ventilation applications.

When insulating your attic it is important that you have unrestricted flow of fresh air from the soffit to the attic. Resin circular mini wall louver soffit vent in white 6 pack model rlsc2 view the master flow intake vents 9 28 9 28. According to attic breeze 1 6th inch mesh has a net free area of 50 percent. Roofing attic ventilation.

Attic ventilation system with built in baffle 10 per carton 4 4 out of 5 stars 3 accuvent 14 5 x 50 16 o c flame retardant pvc high energy vent 50 pack acbp18429. Item 1571672 model xudv2248. Accuvent meets many state building code requirements and is also friendly to the environment as it s made from 100 recycled pvc. That is if the vent is in the clear without louvers.

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 soffit vents. Ado products durovent 23 1 2 in.