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Total Vents:
128
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
64
Low / Intake Vents:
(Within Lower 1/3 of Attic)
64
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
19,046
Code Required Method:
1/300 (EXCEPTION)
Calculation:
19,046 ÷ 300 = 63.49 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
63.49
Calculation:
63.49 x 144 = 9,142.56 sq. in. of Code Required Ventilation
Square Inches Provided:
(128 x 72) = 9,216 sq. in.
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
1/4" Noncombustible, Corrosion-Resistant Wire Mesh 72 sq. in.
Figures based on independent evaluation reports.
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