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Address:
Alvaro St ADU
Total Vents:
16
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
8
Low / Intake Vents:
(Within Lower 1/3 of Attic)
8
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1,149
Code Required Method:
1/150 (EXCEPTION)
Calculation:
1,149 ÷ 150 = 7.66 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
7.66
Calculation:
7.66 x 144 = 1,103.04 sq. in. of Code Required Ventilation
Square Inches Provided:
(16 x 72) = 1,152 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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