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Address:
2160 ANGUS DR WALNUT CREEK
Total Vents:
4
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
2
Low / Intake Vents:
(Within Lower 1/3 of Attic)
2
Comp Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
481
Code Required Method:
1/300 (EXCEPTION)
Calculation:
481 ÷ 300 = 1.60 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
1.60
Calculation:
1.60 x 144 = 230.40 sq. in. of Code Required Ventilation
Square Inches Provided:
(4 x 64.80) = 259.20 sq. in.
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Noncombustible, Corrosion-Resistant Wire Mesh 64.80 sq. in.
Figures based on independent evaluation reports.
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