Address:
12938 Bloomfield St, North Hollywood, CA 91604 (1 first floor roof sections only)
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1140'
Required Method:
1/150
Calculation:
1140 ÷ 150 = 7.60 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
7.60
Calculation:
7.60 x 144 = 1094.40 sq. in of Code Required Ventilation
Square Inches Provided:
(16 x 72) = 1152 sq. in
Square Inches Needed:
7.60 x 144 = 1094.40 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
8
Low / Intake Vents Needed:
8
Total Vents Needed:
16
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?