Address:
123 APPLE ST
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1000'
Required Method:
1/300
Calculation:
1000 ÷ 300 = 3.33 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation
3.33
Calculation:
3.33 x 144 = 479.52 sq. in of Code Required Ventilation
Select Material and Determine Vents Required
Material:
Composition shingle
Placement
Square Inches Provided:
(6 x 98.75) = 592.5 sq. in
Square Inches Needed:
3.33 x 144 = 479.52 sq. in
High / Exhaust Vents Needed:
3
Low / Intake Vents Needed:
3
Total Vents Needed:
6
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