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Address:
1830 Hemlock Street, Chico CA 95928
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1350'
Required Method:
1/300
Calculation:
1350 ÷ 300 = 4.50 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
4.50
Calculation:
4.50 x 144 = 648.00 sq. in of Code Required Ventilation
Square Inches Provided:
(8 x 98.75) = 790 sq. in
Square Inches Needed:
4.50 x 144 = 648.00 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?