The cost of installing a new roof: Factors and estimates

Understanding the Basics

Installing a new roof is one of the most significant investments you can make in your home. According to HomeAdvisor, most homeowners spend between $5,700 and$12,000 on a new roof installation.

Key Factors Influencing Roofing Costs

1. Roof Size and Pitch

• Size: The larger the roof, the more materials and labor required. Roofing contractors measure in "squares," where one square equals 100 square feet.
• Pitch: Steeper roofs require additional labor and safety equipment, increasing costs.

2. Material Costs

Different roofing materials come with varying price points:

Material	Cost per Square Foot	Total Material Cost	Estimated Total Cost (Including Labor)
Asphalt Shingles	$3.50 -$5.50	$2,200 -$3,300	$5,500 -$9,900
Metal Roofing	$6.00 -$12.00	$6,600 -$17,600	$13,200 -$35,200
Slate	$15.00 -$25.00	$22,000 -$44,000	$44,000 -$88,000
Clay Tiles	$10.00 -$18.00	$13,200 -$22,000	$26,400 -$44,000
Wood Shakes	$6.50 -$14.00	-	-

For more detailed information on roofing materials, visit This Old House's guide on roofing materials.

3. Labor Costs

Labor typically accounts for 40-60% of the total roofing cost. Professional roofers usually charge between $1.50 and$3.00 per square foot, depending on:

1. Roof complexity
2. Pitch/slope
3. Accessibility
4. Local market rates

4. Geographic Location

"Labor rates and material costs can vary by as much as 50% between different regions of the United States." - National Roofing Contractors Association

5. Seasonal Timing

• Peak Season (late summer/fall): Higher prices, longer wait times
• Off-Season (winter/early spring): Potential discounts, faster scheduling

Additional Cost Considerations

Removal of Old Roofing

Most contractors charge $1.00 to$5.00 per square foot to remove existing roofing materials, varying based on:

• Number of layers to remove
• Type of material
• Disposal fees in your area

Hidden Costs

• Deck repair or replacement
• Ventilation improvements
• Flashing replacement
• Gutter system updates
• Permits and inspections ($250-$500)
• Skylights and chimneys requiring special flashing

Long-term Value Considerations

When evaluating costs, consider these factors:

Material Type	Lifespan	Maintenance Costs	Energy Efficiency
Asphalt	20-30 years	Low	Moderate
Metal	40-70 years	Very Low	High
Slate	75-100+ years	Low	High
Clay Tile	50-100 years	Low	High

Insurance and Warranty Coverage

Quality roof installations typically include:

• Manufacturer's Warranty: Covers materials (20-50 years)
• Workmanship Warranty: Covers installation (2-10 years)

For more tips on hiring a roofing contractor, check out Angie's List's guide or visit the National Roofing Contractors Association website.