Roof Replacement Cost Calculator
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How to Estimate Roof Replacement Costs
Roof replacement costs vary by material, size, and complexity. Asphalt shingles are the most affordable at $5-8 per square foot installed, while slate can cost $15-25 per square foot. A typical 2,000 sq ft roof costs $7,000-16,000 for asphalt or $30,000-50,000 for slate.
Multi-story homes cost more because of increased labor difficulty and safety requirements. Steep slopes, complex roof lines, chimneys, skylights, and ventilation all add to the cost. Removing the old roof adds $1-2 per square foot.
When choosing materials, consider the total cost of ownership. While slate costs 3-4x more upfront than asphalt, it lasts 3-5x longer, potentially making it more economical over the life of your home.
Frequently Asked Questions
How long does a roof replacement take?
A typical asphalt shingle roof takes 1-3 days. Metal roofing takes 2-5 days. Tile and slate can take 1-2 weeks due to the weight and precision required for installation.
When should I replace my roof?
Signs you need replacement: missing or curling shingles, granules in gutters, daylight through roof boards, sagging, water stains on ceilings, and age (20+ years for asphalt). Get professional inspections every 5 years.
Does a new roof increase home value?
Yes, a new roof typically recoups 60-70% of its cost in home value. It also improves curb appeal, energy efficiency, and eliminates a potential deal-breaker for buyers.