Roof Replacement Cost Formula:
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Definition: This calculator estimates the total cost to replace an asphalt shingle roof based on roof size, material costs, and labor charges.
Purpose: It helps homeowners and contractors budget for roof replacement projects by providing accurate cost estimates.
The calculator uses the formula:
Where:
Explanation: The roof size is multiplied by material cost per square, then labor costs are added to get the total replacement cost.
Details: Accurate cost estimation helps with budgeting, financing, and comparing contractor bids for roof replacement projects.
Tips: Enter roof size in squares (divide total sq ft by 100), material price per square (default $150), and labor cost (default $1000).
Q1: What's included in the price per square?
A: Typically includes shingles, underlayment, nails, and other materials needed for one square (100 sq ft) of roof.
Q2: How do I measure my roof in squares?
A: Calculate your roof's total square footage (length × width) and divide by 100. For complex roofs, consider professional measurement.
Q3: What affects labor costs?
A: Roof pitch, complexity, location, removal of old roofing, and local labor rates all impact total labor costs.
Q4: What's a typical price range per square?
A: Basic asphalt shingles cost $100-$150/square, premium shingles $150-$250/square, and architectural shingles $250-$400/square.
Q5: Does this include disposal costs?
A: No, if your contractor charges separately for disposal, add 10-20% to the labor cost to account for this.