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Address:
1350 Blue Lilac Ln. Alpine, CA 91901
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
6484'
Required Method:
1/150
Calculation:
6484 ÷ 150 = 43.23 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
43.23
Calculation:
43.23 x 144 = 6225.12 sq. in of Code Required Ventilation
Square Inches Provided:
(64 x 98.75) = 6320 sq. in
Square Inches Needed:
43.23 x 144 = 6225.12 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
32
Low / Intake Vents Needed:
32
Total Vents Needed:
64
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?