TenorOpsField Service & Trade Estimators · Roofing Replacement
Free Roof Replacement Cost Calculator | Pitch, Shingles & Labor Tool
Estimate the total cost of a roof replacement factoring in dimensions, slope pitch, roofing material, labor, disposal, skylights, chimneys, and ridge vent.
Roof Dimensions, Material & Extras
Roof Replacement Inputs
Results
Roof Replacement Breakdown
Step-by-step guide
How to Use the Roof Replacement Cost Calculator
- 1Enter roof length and width in feet
Input building footprint dimensions to calculate roof square footage.
- 2Choose roof slope and material
Select pitch multiplier and material (from Asphalt Shingles at $2.50/sq ft up to Natural Slate).
- 3Add labor, disposal, skylights, chimneys, and ridge vent
View instant itemized results for Base Cost, Labor, Disposal, and Extras.
Formula & methodology
How Roof Replacement Costs Are Calculated
Effective Roof Area = Length × Width × Pitch Multiplier Base Material Cost = Effective Roof Area × Material Rate ($/sq ft) Labor Cost = Base Material Cost × (Labor % ÷ 100) Disposal Cost = Effective Roof Area × Disposal Rate ($0.50/sq ft) Extras = (Skylights × $300) + (Chimneys × $400) + (Ridge Vent ft × $10) + Additional Costs
Common questions
Frequently Asked Questions
What is a 'roofing square'?
Roofers measure area in 'squares' where 1 roofing square equals 100 square feet of roof surface. A 1,500 sq ft roof is 15 squares.
Why does roof slope increase replacement cost?
Steeper roofs have greater surface area than their flat footprint and require safety harnesses, roof jacks, and slower staging.
When should I repair a roof instead of replacing it?
If damage is isolated to a single valley, vent boot, or chimney flashing on a roof under 15 years old, use our Roof Repairing Cost Calculator.
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