Back to Vent Calculator
Print
Address:
534 E Mariposa St., Altadena, CA 91001
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
Metal Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1,225
Code Required Method:
1/150 (STANDARD)
Calculation:
1,225 ÷ 150 = 8.17 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
8.17
Calculation:
8.17 x 144 = 1,176.48 sq. in. of Code Required Ventilation
Square Inches Provided:
(16 x 78) = 1,248 sq. in.
Standing Seam metal
Low Profile (Tapered)
NET FREE VENTILATION AREA
1/4" Noncombustible, Corrosion-Resistant Wire Mesh 78 sq. in.
Figures based on independent evaluation reports.
Vent Solutions
Questions?