Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1500'
Required Method:
1/300
Calculation:
1500 ÷ 300 = 5.00 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation
5.00
Calculation:
5.00 x 144 = 720.00 sq. in of Code Required Ventilation
Select Material and Determine Vents Required
Material:
Composition shingle
Placement
Square Inches Provided:
(