1. What is an Asphalt Roof Replacement Cost Calculator?

Definition: This calculator estimates the total cost of replacing an asphalt shingle roof based on roof area, material costs, and labor charges.

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 area in squares (1 square = 100 sq ft)
• \( P_{square} \) — Price per square of materials ($)
• \( C_{labor} \) — Labor cost ($)

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

3. Importance of Roof Cost Calculation

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

4. Using the Calculator

Tips: Enter the roof area in squares, price per square (default $150), and labor cost (default $1000). All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a "square" in roofing terms?
A: 1 square = 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 range from $100-$400 per square depending on shingle quality and region, with $150 being average.

Q3: How do I estimate my roof area in squares?
A: Measure your home's footprint, multiply by roof pitch factor (1.3 for medium pitch), and divide by 100.

Q4: What does labor cost typically include?
A: Labor covers tear-off of old roof, installation of new shingles, underlayment, flashing, and cleanup.

Q5: Should I add extra for waste or unexpected costs?
A: Yes, consider adding 10-15% to the calculated cost for project contingencies and waste.