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Total Vents:
2
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
1
Low / Intake Vents:
(Within Lower 1/3 of Attic)
1
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
250
Code Required Method:
1/300 (EXCEPTION)
Calculation:
250 ÷ 300 = 0.83 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
0.83
Calculation:
0.83 x 144 = 119.52 sq. in. of Code Required Ventilation
Square Inches Provided:
(2 x 72) = 144 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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