Chimney Flashing Calculator

Calculate flashing materials for chimney-to-roof intersections.

Horizontal measurement perpendicular to length.
in
Measurement of how deep something extends.
in
Angle of incline, often as ratio or percentage.
:12
Enter the flashing type value for this calculation.

Results

Base Flashing:
Calculated base flashing based on your inputs.
-sq ft
Step Flashing Pcs:
Calculated step flashing pcs based on your inputs.
-pcs
Counter Flashing:
Number of items needed or calculated.
-LF
Cricket Required:
Calculated cricket required based on your inputs.
-
Reference: Industry Standards. Chimney flashing best practices per NRCA.