Address:
5555 East Evergreen Boulevard, Vancouver, WA 98661
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
22265'
Required Method:
1/150
Calculation:
22265 ÷ 150 = 148.43 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
148.43
Calculation:
148.43 x 144 = 21373.92 sq. in of Code Required Ventilation
Square Inches Provided:
(298 x 72) = 21456 sq. in
Square Inches Needed:
148.43 x 144 = 21373.92 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
149
Low / Intake Vents Needed:
149
Total Vents Needed:
298
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Wire Mesh 72 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?