1. What is Asphalt Roofing Cost per Square Foot?

Definition: This calculator determines the cost of asphalt roofing per square foot based on material and labor costs.

Purpose: It helps homeowners and contractors estimate roofing project costs accurately.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C_{sf} \) — Cost per square foot ($/ft²)
• \( Q \) — Number of roofing squares
• \( P_{square} \) — Price per roofing square ($)
• \( C_{labor} \) — Labor cost ($)
• \( A_r \) — Roof area (ft²)

Explanation: The total material cost (squares × price per square) plus labor cost is divided by the roof area to get cost per square foot.

3. Importance of Roofing Cost Calculation

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

4. Using the Calculator

Tips: Enter the number of roofing squares (1 square = 100 ft²), price per square, labor cost, and total roof area. All values must be > 0 except labor cost which can be 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a roofing square?
A: A roofing square is a unit of measurement equal to 100 square feet of roof area.

Q2: How do I determine the number of squares?
A: Divide your total roof area by 100. For example, 1,500 ft² = 15 squares.

Q3: What's included in labor cost?
A: This includes all installation costs, disposal of old roofing, and any necessary repairs to the roof deck.

Q4: What's a typical price range per square?
A: Asphalt shingles typically cost $100-$200 per square, but premium materials can cost more.

Q5: Should I include underlayment in this calculation?
A: Typically, underlayment cost is included in the price per square or labor cost. Check with your supplier or contractor.