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Address:
3300 Lake Avenue, Altadena, California, 91001
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
Tile Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
348
Code Required Method:
1/150 (STANDARD)
Calculation:
348 ÷ 150 = 2.32 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
2.32
Calculation:
2.32 x 144 = 334.08 sq. in. of Code Required Ventilation
Square Inches Provided:
(4 x 88.87) = 355.48 sq. in.
concrete Tile Vents
Low Profile (Flat)
NET FREE VENTILATION AREA
1/8" Noncombustible, Corrosion-Resistant Wire Mesh 88.87 sq. in.
Figures based on independent evaluation reports.
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