2nd Mortgage Calculator

Professional Roofing Cost Estimator

Standard 2,000 sq ft roof is common for a mid-sized home.

Asphalt Shingles (Basic) – $5.50/sqft Architectural Shingles (Premium) – $8.25/sqft Standing Seam Metal – $13.50/sqft Clay or Concrete Tile – $18.00/sqft Natural Slate – $22.00/sqft

Low Pitch / Simple Gable (1.0x) Moderate Pitch / Multiple Hips (1.2x) High Pitch / Steep / Many Dormers (1.5x)

Estimated Project Total

function calculateRoofCost() { var area = parseFloat(document.getElementById('roofArea').value); var materialPrice = parseFloat(document.getElementById('materialType').value); var complexityMultiplier = parseFloat(document.getElementById('complexity').value); var resultDiv = document.getElementById('resultArea'); var totalDisplay = document.getElementById('totalCost'); var breakdownDisplay = document.getElementById('costBreakdown'); if (isNaN(area) || area <= 0) { alert("Please enter a valid roof square footage."); return; } // Calculation Logic var baseCost = area * materialPrice; var finalTotal = baseCost * complexityMultiplier; var laborEstimate = finalTotal * 0.45; // Approximately 45% of total is often labor var materialsEstimate = finalTotal * 0.55; // 55% for materials and overhead totalDisplay.innerHTML = "$" + finalTotal.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); breakdownDisplay.innerHTML = "Breakdown:" + "Estimated Squares: " + (area / 100).toFixed(2) + " (100 sq. ft. per square)" + "Material & Disposal: ~$" + materialsEstimate.toLocaleString(undefined, {maximumFractionDigits: 0}) + "" + "Labor & Installation: ~$" + laborEstimate.toLocaleString(undefined, {maximumFractionDigits: 0}) + "" + "*Disclaimer: This is a rough estimate. Actual costs vary by region, contractor rates, and existing roof condition."; resultDiv.style.display = 'block'; }

---

Comprehensive Guide to Roofing Replacement Costs

Replacing a roof is one of the most significant investments a homeowner will make. Understanding how costs are calculated helps you budget effectively and negotiate with contractors. Most roofing companies quote prices per "square," which is a 10-foot by 10-foot area (100 square feet).

Key Factors Influencing Your Estimate

• Roof Size: The total square footage is the primary driver of cost. Remember that your roof's surface area is always larger than your home's interior square footage due to the pitch (slope) and overhangs.
• Material Choice: Asphalt shingles are the most common and budget-friendly. However, materials like standing seam metal or slate offer much higher longevity (50+ years) but come with a significantly higher upfront price tag.
• Pitch and Complexity: A flat or low-slope roof is easier and safer to walk on, reducing labor costs. Steep roofs (high pitch) or those with many valleys, dormers, and chimneys require specialized safety equipment and more time-intensive flashing work.
• Tear-off Costs: If your home has multiple layers of old shingles, contractors must remove and dispose of them before installing the new roof, adding to the labor and disposal fees.

Realistic Pricing Examples

To help you visualize the costs, here are three typical scenarios:

1. The Starter Home: A 1,500 sq. ft. roof using standard asphalt shingles with a simple gable design typically ranges from $7,500 to $9,500.
2. The Mid-Sized Suburban Home: A 2,500 sq. ft. roof using architectural shingles and moderate complexity usually falls between $15,000 and $22,000.
3. The Premium Estate: A 3,500 sq. ft. roof utilizing standing seam metal on a steep, complex structure can exceed $55,000 to $75,000.

How to Use This Calculator

Simply enter your roof's total square footage. If you only know your home's ground-floor footprint, a general rule of thumb is to multiply that number by 1.3 to account for the pitch and eaves. Select your desired material and the complexity of your roof's design. Our tool applies industry-standard multipliers to give you a realistic "ballpark" figure for a full replacement, including labor and materials.