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Total Vents:
20
Where do I install vents graphic
Vent Placement Recommendations
High / Exhaust Vents Needed:
(Within 3' of Ridge Assembly)
10
Low / Intake Vents:
(Within Lower 1/3 of Attic)
10
Tile Roof Drawing
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1,700
Code Required Method:
1/150 (EXCEPTION)
Calculation:
1,700 ÷ 150 = 11.33 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
11.33
Calculation:
11.33 x 144 = 1,631.52 sq. in. of Code Required Ventilation
Square Inches Provided:
(20 x 86.25) = 1,725 sq. in.
concrete Tile Vents
Medium Profile (M)
NET FREE VENTILATION AREA
1/4" Noncombustible, Corrosion-Resistant Wire Mesh 86.25 sq. in.
Figures based on independent evaluation reports.
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