Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
2170'
Required Method:
1/300
Calculation:
2170 ÷ 300 = 7.23 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation
7.23
Calculation:
7.23 x 144 = 1041.12 sq. in of Code Required Ventilation
Select Material and Determine Vents Required
Material:
Composition shingle
Placement
Square Inches Provided:
(