1. What is an Asphalt Roof Replacement Cost Calculator?

Definition: This calculator estimates the total cost for replacing an asphalt roof based on roof quantity (in squares), price per square, and labor costs.

Purpose: It helps homeowners and contractors budget for roof replacement projects by providing accurate cost estimates.

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 ($/square)
• \( C_{labor} \) — Labor cost ($)

Explanation: The roof quantity is multiplied by price per square to get material costs, then labor costs are added for the total project cost.

3. Importance of Roof Cost Calculation

Details: Accurate cost estimation helps with budgeting, financing, and comparing contractor bids for roof replacement projects.

4. Using the Calculator

Tips: Enter the roof quantity in squares (1 square = 100 sq ft), price per square of materials, and estimated labor costs. All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a "square" in roofing terms?
A: In roofing, 1 square equals 100 square feet of roof area. It's the standard measurement unit for roofing materials.

Q2: What's a typical price per square for asphalt shingles?
A: Prices typically range from $100-$150 per square for basic 3-tab shingles to $150-$400 for architectural shingles, varying by region and quality.

Q3: How do I estimate labor costs?
A: Labor typically costs $50-$150 per square, or get quotes from local contractors for more accurate estimates.

Q4: Should I include removal of old roofing?
A: Yes, either include removal in the labor cost or add it as a separate line item if your contractor breaks it out.

Q5: Does this include underlayment and other materials?
A: The price per square should include all materials (shingles, underlayment, nails, etc.) unless your contractor prices them separately.