Address:
1964 E Woodlyn Rd., Pasadena, CA. 91104
Total Square Feet of Attic Space to be Ventilated
Total Square Feet of Attic Space to be Ventilated:
226'
Required Method:
1/150
Calculation:
226 ÷ 150 = 1.51 sq. ft. of Code Required Ventilation
Convert square feet of code-required ventilation to square inches
Square Feet of Code Required Ventilation:
1.51
Calculation:
1.51 x 144 = 217.44 sq. in of Code Required Ventilation
Square Inches Provided:
(4 x 98.75) = 395 sq. in
Square Inches Needed:
1.51 x 144 = 217.44 sq. in
Where do I install vents graphic
Vent Placement
High / Exhaust Vents Needed:
2
Low / Intake Vents Needed:
2
Total Vents Needed:
4
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?