Back to Vent Calculator
Print
Address:
Pete’s House
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1600'
Required Method:
1/150
Calculation:
1600 ÷ 150 = 10.67 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
10.67
Calculation:
10.67 x 144 = 1536.48 sq. in of Code Required Ventilation
Square Inches Provided:
(16 x 98.75) = 1580 sq. in
Square Inches Needed:
10.67 x 144 = 1536.48 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
8
Low / Intake Vents Needed:
8
Total Vents Needed:
16
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Wire Mesh 98.75 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?