Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
500'
Required Method:
1/300
Calculation:
500 ÷ 300 = 1.67 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
1.67
Calculation:
1.67 x 144 = 240.48 sq. in of Code Required Ventilation
Square Inches Provided:
(4 x 78) = 312 sq. in
Square Inches Needed:
1.67 x 144 = 240.48 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
2
Low / Intake Vents Needed:
2
Total Vents Needed:
4
metal
Low Profile (Tapered)
NET FREE VENTILATION AREA
Wire Mesh 78 sq. in
Figures based on independent evaluation reports.
Metal Roof Drawing
Questions?