Address:
4404 Whitney Drive, San Bernardino, CA, 92407
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1575'
Required Method:
1/300
Calculation:
1575 ÷ 300 = 5.25 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation
5.25
Calculation:
5.25 x 144 = 756.00 sq. in of Code Required Ventilation
Select Material and Determine Vents Required
Material:
Composition shingle
Placement
Square Inches Provided:
(10 x 98.75) = 987.5 sq. in
Square Inches Needed:
5.25 x 144 = 756.00 sq. in
High / Exhaust Vents Needed:
5
Low / Intake Vents Needed:
5
Total Vents Needed:
10
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