Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1487'
Required Method:
1/150
Calculation:
1487 ÷ 150 = 9.91 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation
9.91
Calculation:
9.91 x 144 = 1427.04 sq. in of Code Required Ventilation
Select Material and Determine Vents Required
Material:
Composition shingle
Placement
Square Inches Provided:
(