1. What is an Asphalt Roof Cost Calculator?

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

Purpose: It helps homeowners and contractors budget for roofing projects by providing quick cost estimates.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

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 Estimation

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 (divide total sq ft by 100), material 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: One square equals 100 square feet of roof area, the standard measurement unit in roofing.

Q2: What's a typical price per square for asphalt shingles?
A: Prices range $100-$200 per square depending on shingle quality and region.

Q3: How do I estimate labor costs?
A: Labor typically costs $1,000-$3,000 for an average roof, or $1.50-$3.00 per square foot.

Q4: Does this include removal of old roofing?
A: No, add $100-$150 per square for tear-off and disposal if needed.

Q5: What other costs should I consider?
A: Include 10-15% for waste, flashing, vents, and unexpected repairs.