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Total Vents:
72
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
36
Low / Intake Vents:
(Within Lower 1/3 of Attic)
36
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
4,800
Code Required Method:
1/150 (STANDARD)
Calculation:
4,800 ÷ 150 = 32 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
32
Calculation:
32 x 144 = 4,608 sq. in. of Code Required Ventilation
Square Inches Provided:
(72 x 64.80) = 4,665.60 sq. in.
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
1/8" Noncombustible, Corrosion-Resistant Wire Mesh 64.80 sq. in.
Figures based on independent evaluation reports.
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