22-1/2" x 48" Double Rafter Vent

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POLYSTYRENE

48"

22.5"

Made of extruded polystyrene
Unique design assures unrestricted air flow from soffit to attic through thickest part of the insulation
Break-resistant durability and ease of installation
Year-round performance -- in summer, aids in cross ventilation to increase comfort while reducing cooling requirements; in winter, help prevent damaging ice dams by reducing moisture
One size (perforated) for use in both new and retrofit construction
Net free area: 25.5 sq. inches (full piece), 12.75 sq. inches (when split)
Totally resists moisture; will not rot or deteriorate
Meets all building codes