Address:
1777 Main Street Riverside Ca 92501
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1250'
Required Method:
1/300
Calculation:
1250 ÷ 300 = 4.17 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
4.17
Calculation:
4.17 x 144 = 600.48 sq. in of Code Required Ventilation
Square Inches Provided:
(10 x 72) = 720 sq. in
Square Inches Needed:
4.17 x 144 = 600.48 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
5
Low / Intake Vents Needed:
5
Total Vents Needed:
10
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Tile Profile Low (Tapered)
Wire Mesh 72 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?