*Disclaimer: This is a rough estimate. Local labor rates and structural repairs may vary the final price.
Understanding Roof Replacement Costs in 2024
A new roof is one of the most significant investments a homeowner will make. On average, most homeowners spend between $8,000 and $16,000 for a standard roof replacement, but high-end materials like slate or tile can push prices well above $40,000.
Key Factors Influencing Your Quote
Roof Size: Contractors measure roofs in "squares." One square equals 100 square feet. The larger the surface area, the higher the material and labor cost.
Material Choice: Asphalt shingles are the most common because they are cost-effective. However, metal roofs offer superior longevity, and slate offers unmatched aesthetics but requires structural reinforcement.
Pitch and Slope: A steep roof is more dangerous and difficult to work on. This requires specialized safety equipment and more man-hours, increasing the labor cost.
Tear-off vs. Overlay: Removing the old layers of shingles (tear-off) adds to the labor and disposal fees but is generally recommended to inspect the underlying roof deck for rot.
Average Cost by Material (Per Square Foot)
Material Type
Price Range (Installed)
Lifespan
Asphalt Shingles
$4.00 – $7.00
15-25 Years
Metal Roofing
$9.00 – $15.00
40-70 Years
Tile / Concrete
$12.00 – $20.00
50+ Years
Natural Slate
$18.00 – $30.00
75-100 Years
Cost Example: 2,000 Sq. Ft. Roof
If you have a 2,000 square foot roof with a moderate pitch using architectural shingles:
Base Materials: 2,000 x $6.50 = $13,000
Tear-off: 2,000 x $1.50 = $3,000
Complexity Multiplier (1.2x): $16,000 x 1.2 = $19,200 Total
function calculateRoofCost() {
var area = document.getElementById('roofArea').value;
var materialRate = parseFloat(document.getElementById('materialType').value);
var complexity = parseFloat(document.getElementById('complexity').value);
var tearOffActive = document.getElementById('tearOff').checked;
if (area === "" || area <= 0) {
alert("Please enter a valid roof area.");
return;
}
var areaNum = parseFloat(area);
var tearOffRate = tearOffActive ? 1.50 : 0;
// Logic: (Base Material Cost + Tear off cost) * Complexity Multiplier
var baseCost = areaNum * materialRate;
var tearOffCost = areaNum * tearOffRate;
var subTotal = baseCost + tearOffCost;
var total = subTotal * complexity;
// Formatting currency
var formatter = new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
});
document.getElementById('totalCostDisplay').innerText = formatter.format(total);
var breakdownText = "Includes " + areaNum + " sq. ft. of coverage with ";
if (tearOffActive) {
breakdownText += "removal of old roofing and ";
}
breakdownText += "installation of selected materials.";
document.getElementById('breakdownDisplay').innerText = breakdownText;
document.getElementById('roofResult').style.display = 'block';
// Scroll to result smoothly
document.getElementById('roofResult').scrollIntoView({ behavior: 'smooth', block: 'nearest' });
}