1. What is a Roof Replacement Cost Calculator?

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.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C \) — Total cost ($)
• \( Q \) — Roof quantity (squares, where 1 square = 100 sq ft)
• \( P_{square} \) — Price per square of shingles ($)
• \( C_{labor} \) — Labor cost ($)

Explanation: The roof size in squares is multiplied by the material cost per square, then labor costs are added.

3. Importance of Roof Cost Calculation

Details: Accurate cost estimation helps with budgeting, financing, and comparing contractor bids.

4. Using the Calculator

Tips: Enter the roof size in squares (divide total sq ft by 100), price per square (default $120), and labor cost (default $1500).

5. Frequently Asked Questions (FAQ)

Q1: What is a "square" in roofing terms?
A: 1 square = 100 square feet of roof area. This is the standard measurement unit in roofing.

Q2: What's a typical price per square for asphalt shingles?
A: Prices range from $100-$150 per square for standard 3-tab shingles, more for architectural shingles.

Q3: How is labor cost determined?
A: Labor typically costs $1,500-$3,000 for an average roof, depending on complexity and location.

Q4: Does this include disposal of old roofing?
A: No, you may need to add $100-$200 per square for tear-off and disposal costs.

Q5: What other costs should I consider?
A: Include underlayment, flashing, vents, drip edge, and permit fees in your total budget.