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Total Vents:
18
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
9
Low / Intake Vents:
(Within Lower 1/3 of Attic)
9
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1,322
Code Required Method:
1/150 (EXCEPTION)
Calculation:
1,322 ÷ 150 = 8.81 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
8.81
Calculation:
8.81 x 144 = 1,268.64 sq. in. of Code Required Ventilation
Square Inches Provided:
(18 x 72) = 1,296 sq. in.
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Noncombustible, Corrosion-Resistant Wire Mesh 72 sq. in.
Figures based on independent evaluation reports.
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