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Address:
10621 SPRY STREET, DOWNEY, CALIFORNIA 90650
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
668'
Required Method:
1/150
Calculation:
668 ÷ 150 = 4.45 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
4.45
Calculation:
4.45 x 144 = 640.80 sq. in of Code Required Ventilation
Square Inches Provided:
(8 x 98.75) = 790 sq. in
Square Inches Needed:
4.45 x 144 = 640.80 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
4
Low / Intake Vents Needed:
4
Total Vents Needed:
8
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?