1. What is Asphalt Shingle Roof Replacement Cost Calculator?

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

Purpose: It helps homeowners and contractors budget for roof replacement projects.

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 Accurate Roof Cost Estimation

Details: Proper cost estimation ensures adequate budgeting, prevents project delays, and allows for comparison of contractor bids.

4. Using the Calculator

Tips: Enter roof area in squares (divide total sq ft by 100), material cost 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. This is the standard measurement unit in roofing.

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

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), then divide by 100.

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

Q5: Does this include additional costs like permits or dump fees?
A: No, consider adding 10-15% to the calculated cost for these additional expenses.