1. What is the Roof Replacement Cost Calculator?

Definition: This calculator estimates the total cost to replace an asphalt shingle roof based on roof size, material costs, and labor charges.

Purpose: It helps homeowners and contractors budget for roof replacement projects, typically ranging $5700-$12000 for 1800-2500 ft² roofs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( C \) — Total cost ($)
• \( Q \) — Roof size in squares (1 square = 100 ft²)
• \( P_{square} \) — Price per square of materials ($)
• \( C_{labor} \) — Labor cost ($)

Explanation: The roof size 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 quotes for roof replacement projects.

4. Using the Calculator

Tips: Enter roof size in squares (divide square footage by 100), material price per square (default $120), and labor cost (default $1500).

5. Frequently Asked Questions (FAQ)

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

Q2: How do I convert my roof area to squares?
A: Divide your total square footage by 100 (e.g., 2000 ft² = 20 squares).

Q3: What affects labor costs?
A: Roof pitch, complexity, location, and removal/disposal of old roofing affect labor prices.

Q4: Are there additional costs not included?
A: Yes, permits, ventilation upgrades, flashing repairs, and dump fees may be extra.

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