Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1465'
Required Method:
1/150
Calculation:
1465 ÷ 150 = 9.77 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
9.77
Calculation:
9.77 x 144 = 1406.88 sq. in of Code Required Ventilation
Square Inches Provided:
(16 x 98.75) = 1580 sq. in
Square Inches Needed:
9.77 x 144 = 1406.88 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?