Back to Vent Calculator
Print
Address:
680 fargo avenue, san leandro CA
Total Vents:
84
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
42
Low / Intake Vents:
(Within Lower 1/3 of Attic)
42
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
12,500
Code Required Method:
1/300 (EXCEPTION)
Calculation:
12,500 ÷ 300 = 41.67 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
41.67
Calculation:
41.67 x 144 = 6,000.48 sq. in. of Code Required Ventilation
Square Inches Provided:
(84 x 72) = 6,048 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.
Vent Solutions
Questions?