1. What is an Asphalt Shingle 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 using asphalt shingles.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C \) — Total roof cost ($)
• \( Q \) — Roof area in squares (1 square = 100 sq ft)
• \( P_{square} \) — Price per square of shingles ($)
• \( C_{labor} \) — 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, comparing contractor bids, and planning financing for roofing projects.

4. Using the Calculator

Tips: Enter roof area in squares (divide total sq ft by 100), price per square (default $120), and labor cost (default $1500). All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What's included in the price per square?
A: This should include shingles, underlayment, nails, and other materials needed per 100 sq ft of roof area.

Q2: How do I convert roof area to squares?
A: Measure total square footage and divide by 100 (e.g., 2000 sq ft = 20 squares).

Q3: What affects labor costs?
A: Roof pitch, complexity, location, and contractor rates all influence labor costs.

Q4: Does this include removal of old roofing?
A: No, tear-off costs would be additional to the calculated amount.

Q5: What's a typical price range per square?
A: Typically $100-$150 per square for standard 3-tab shingles, more for architectural shingles.