Address:
868 S Duff Ave., West Covina, CA. 91790
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
792'
Required Method:
1/150
Calculation:
792 ÷ 150 = 5.28 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation
5.28
Calculation:
5.28 x 144 = 760.32 sq. in of Code Required Ventilation
Select Material and Determine Vents Required
Material:
Composition shingle
Placement
Square Inches Provided:
(8 x 98.75) = 790 sq. in
Square Inches Needed:
5.28 x 144 = 760.32 sq. in
High / Exhaust Vents Needed:
4
Low / Intake Vents Needed:
4
Total Vents Needed:
8
Material:
Composition shingle
Product:
Low Profile - "Tapered"
Comp Roof Drawing
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