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Address:
535 Marilyn ave Brawley Ca 92227
Total Vents:
20
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
10
Low / Intake Vents:
(Within Lower 1/3 of Attic)
10
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
3,800
Code Required Method:
1/300 (EXCEPTION)
Calculation:
3,800 ÷ 300 = 12.67 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
12.67
Calculation:
12.67 x 144 = 1,824.48 sq. in. of Code Required Ventilation
Square Inches Provided:
(20 x 98.75) = 1,975 sq. in.
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Noncombustible, Corrosion-Resistant Wire Mesh 98.75 sq. in.
Figures based on independent evaluation reports.
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