Total Square Feet of Attic Space to be Ventilated:
2371'
Required Method:
1/300
Calculation:
2371 ÷ 300 = 7.90 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation
7.90
Calculation:
7.90 x 144 = 1137.60 sq. in of Code Required Ventilation
Select Material and Determine Vents Required
Material:
Composition shingle
Placement
Square Inches Provided:
(12 x 98.75) = 1185 sq. in
Square Inches Needed:
7.90 x 144 = 1137.60 sq. in
High / Exhaust Vents Needed:
6
Low / Intake Vents Needed:
6
Total Vents Needed:
12
Material:
Composition shingle
Product:
Low Profile - "Tapered"
Benefits of Attic Ventilation
1. Extends the roof's life
2. Curb appeal
3. Balanced System
4. Fits with Solar Systems
5. Validate the Warranty
6. Enhances Above-Sheathing Ventilation (ASV)
7. Reduces Moisture/Removes Trapped Gases
8. Energy conservation
