Address:
Alvarado Hill HOA - non fire zone
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
1076'
Required Method:
1/150
Calculation:
1076 ÷ 150 = 7.17 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
7.17
Calculation:
7.17 x 144 = 1032.48 sq. in of Code Required Ventilation
Square Inches Provided:
(16 x 72) = 1152 sq. in
Square Inches Needed:
7.17 x 144 = 1032.48 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
8
Low / Intake Vents Needed:
8
Total Vents Needed:
16
Composition shingle
Low Profile (Tapered)
NET FREE VENTILATION AREA
Tile Profile Low (Tapered)
Wire Mesh 72 sq. in
Figures based on independent evaluation reports.
Comp Roof Drawing
Questions?