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Address:
5540 Via Bello, San Diego - non fire zone
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1608'
Required Method:
1/150
Calculation:
1608 ÷ 150 = 10.72 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
10.72
Calculation:
10.72 x 144 = 1543.68 sq. in of Code Required Ventilation
Square Inches Provided:
(22 x 72) = 1584 sq. in
Square Inches Needed:
10.72 x 144 = 1543.68 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
11
Low / Intake Vents Needed:
11
Total Vents Needed:
22
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Wire Mesh 72 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?