Valley Flashing Calculator

Calculate metal valley flashing or ice & water shield for roof valleys.

Linear measurement in the specified unit.
ft
Enter the flashing type value for this calculation.
Horizontal measurement perpendicular to length.
in

Results

Units Needed:
Calculated units needed based on your inputs.
-
Total Linear Feet:
Sum of all calculated values.
-ft
Coverage Area:
Calculated surface area.
-sq ft
Reference: Industry Standards. Valley flashing minimum 24 inches wide per code.