Address:
123 Main
Total Vents:
20
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
10
Low / Intake Vents:
(Within Lower 1/3 of Attic)
10
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
2,500
Code Required Method:
1/300 (EXCEPTION)
Calculation:
2,500 ÷ 300 = 8.33 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
8.33
Calculation:
8.33 x 144 = 1,199.52 sq. in. of Code Required Ventilation
Square Inches Provided:
(20 x 64.80) = 1,296 sq. in.
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
1/8" Noncombustible, Corrosion-Resistant Wire Mesh 64.80 sq. in.
Figures based on independent evaluation reports.
Vent Solutions
Questions?