Addition to House Cost Calculator

Professional Roofing Cost Calculator

Asphalt Shingles (Basic) Architectural Shingles Metal Roofing Clay or Concrete Tile Natural Slate

Flat or Low (0/12 – 3/12) Standard (4/12 – 7/12) Steep (8/12 – 12/12) Extreme (> 12/12)

Estimated Cost: $0.00

*This estimate includes materials, labor (based on national averages), and a 10% waste factor for valleys and hips. Actual local quotes may vary.

function calculateRoofPrice() { var area = parseFloat(document.getElementById('roofArea').value); var materialPrice = parseFloat(document.getElementById('materialType').value); var pitchMultiplier = parseFloat(document.getElementById('roofPitch').value); var tearOffNeeded = document.getElementById('tearOff').checked; var tearOffRate = 1.50; // Average cost per sq ft for removal if (isNaN(area) || area <= 0) { alert("Please enter a valid roof area."); return; } // Calculation Logic var wasteFactor = 1.10; // 10% waste for cuts and overlaps var baseMaterialAndLabor = area * materialPrice * pitchMultiplier; var removalCost = tearOffNeeded ? (area * tearOffRate) : 0; var totalEstimate = (baseMaterialAndLabor + removalCost) * wasteFactor; // Display Results document.getElementById('totalPrice').innerHTML = new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' }).format(totalEstimate); document.getElementById('roofResult').style.display = 'block'; }

Understanding Your Roofing Costs

A new roof is one of the most significant investments a homeowner can make. Using our roofing cost calculator helps you budget for this essential home improvement project. Several variables influence the final quote you receive from a roofing contractor.

Key Factors Affecting Roof Pricing

• Material Choice: Asphalt shingles are the most budget-friendly, while slate and high-end tiles can cost five times as much due to material rarity and specialized labor.
• Roof Pitch: Steeper roofs require more safety equipment, take longer to navigate, and increase the labor hours needed for installation.
• Total Square Footage: Roofing is typically measured in "squares" (100 square feet). Larger roofs naturally require more materials and time.
• Tear-Off and Disposal: Removing one or two layers of existing shingles and disposing of them at a landfill adds significantly to the labor and logistics cost.
• Complexity: Chimneys, skylights, dormers, and multiple valleys require extra flashing and cutting, which increases the total price.

Average Cost by Material (Per Sq Ft)

Material	Estimated Range (Installed)
Asphalt Shingle	$4.50 – $7.00
Metal (Standing Seam)	$10.00 – $16.00
Concrete Tile	$12.00 – $20.00
Natural Slate	$20.00 – $35.00

Tips for Saving on Your New Roof

While you should never compromise on the quality of installation, you can save money by:

1. Timing the Project: Roofing contractors are often busiest in late summer and fall. Booking in the late winter or early spring might yield lower labor rates.
2. Getting Multiple Quotes: Always get at least three estimates from licensed and insured local contractors.
3. Checking Warranty Options: A higher upfront cost for a better warranty can save you thousands in potential repairs over the next 20 to 50 years.