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Address:
3176 Rossini Pl., Topanga, CA 90290
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1700'
Required Method:
1/150
Calculation:
1700 ÷ 150 = 11.33 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
11.33
Calculation:
11.33 x 144 = 1631.52 sq. in of Code Required Ventilation
Square Inches Provided:
(18 x 98.75) = 1777.5 sq. in
Square Inches Needed:
11.33 x 144 = 1631.52 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
9
Low / Intake Vents Needed:
9
Total Vents Needed:
18
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Wire Mesh 98.75 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?