Roofing Cement Calculator

Calculate roofing cement/mastic needed for flashing and repairs.

Enter the flashing linear feet value for this calculation.
ft
Number of items or instances.
Surface area measurement (length × width for rectangles).
sq ft

Results

Gallons Needed:
Calculated gallons needed based on your inputs.
-gal
10 oz Tubes:
Calculated 10 oz tubes based on your inputs.
-tubes
Recommendation:
Calculated recommendation based on your inputs.
-
Reference: Industry Standards. Coverage rates for roofing cement applications.