1. What is a Roof Cost Calculator?

Definition: This calculator estimates the total cost for a new asphalt shingle roof based on area, material price, and labor costs.

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

4. Using the Calculator

Tips: Enter the roof area in squares (1 square = 100 sq ft), price per square (default $120), and labor cost (default $1500). 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?
A: Asphalt shingles typically range from $100-$150 per square, but prices vary by quality and region.

Q3: How do I estimate my roof area?
A: Measure your home's footprint and multiply by the roof pitch factor, or use our Roof Area Calculator.

Q4: Does this include removal of old roofing?
A: No, tear-off costs would be additional. Add 20-30% if including removal of old materials.

Q5: What other costs should I consider?
A: Include permits, flashing, vents, ice/water shield, and 10-15% extra for waste and starter shingles.