Address:
FONTANA
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
2337'
Required Method:
1/150
Calculation:
2337 ÷ 150 = 15.58 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
15.58
Calculation:
15.58 x 144 = 2243.52 sq. in of Code Required Ventilation
Square Inches Provided:
(22 x 98.75) = 2172.5 sq. in
Square Inches Needed:
15.58 x 144 = 2243.52 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 98.75 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?