Roof costs
Roof tear-off cost calculator
Estimate roof tear-off cost. Replacement with a quoted tear-off scope.
Try the calculation
Keep tear-off separate from new roof installation.
Adjustable example. Change these illustrative inputs to match your task, then recalculate. Reset restores the example and its result.
Understand the result
How this calculation works
Tear-off cost is a separate subtotal for removing the measured roof area.
Steps
- Enter roof area and the quoted tear-off rate.
- Confirm whether disposal is included in the rate before comparing bids.
The form starts with the worked example below. Change its values and selections to match your task; Reset restores the example.
Formula
tear-off subtotal = area × rate.
Variables and units
- Roof area (sq ft)
- Required. Use a positive value. Starting example: 1800. Replace it for your task.
- Tear-off rate ($/sq ft)
- Required. Use a positive value. Starting example: 1.25. Replace it for your task. Enter a local rate or a documented reference rate.
What the result means
The result does not add layers, disposal or labor adjustments that are absent from the rate.
Worked example
Inputs: Roof area = 1800; Tear-off rate = 1.25.
Calculation: 1,800 sq ft × $1.25 = $2,250.
Result: 2,250 $.
Frequently asked questions
Does it count multiple roof layers?
No, enter a rate that reflects the quoted scope.
Is disposal separate?
Only the quote can answer that; the calculator does not infer it.
Can area be fractional?
Yes, measured area may be fractional.