Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
2697'
Required Method:
1/150
Calculation:
2697 ÷ 150 = 17.98 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
17.98
Calculation:
17.98 x 144 = 2589.12 sq. in of Code Required Ventilation
Square Inches Provided:
(36 x 72) = 2592 sq. in
Square Inches Needed:
17.98 x 144 = 2589.12 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
18
Low / Intake Vents Needed:
18
Total Vents Needed:
36
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Wire Mesh 72 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?