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Address:
3919 Mississippi St
Total Vents:
30
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
15
Low / Intake Vents:
(Within Lower 1/3 of Attic)
15
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
3,920
Code Required Method:
1/300 (EXCEPTION)
Calculation:
3,920 ÷ 300 = 13.07 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
13.07
Calculation:
13.07 x 144 = 1,882.08 sq. in. of Code Required Ventilation
Square Inches Provided:
(30 x 64.80) = 1,944 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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