How big is the area under your roof? Its footprint, overhangs included, in square feet
How steep is it?
What will it be made of?
How much rotten decking will be replaced? A roofer finds out at tear-off
Estimated cost
$8,900 – $24,600
About 2,236 square feet of roof, or 22.4 squares
An installed price for the roof alone, before any decking, from the guide to that material. A roofer's measured quote is the real number.
Get a free roof quoteRoof replacement cost by size and material
Installed cost for a medium pitch (6 in 12) with no decking replaced. Find your footprint across the top and your material down the side.
| Material | 1,500 sq ft footprint | 2,000 sq ft footprint | 2,500 sq ft footprint | 3,000 sq ft footprint |
|---|---|---|---|---|
| Asphalt shingles | $6,700 – $18,400 | $8,900 – $24,600 | $11,200 – $30,700 | $13,400 – $36,900 |
| Metal panels (exposed fastener) | $8,400 – $20,100 | $11,200 – $26,800 | $14,000 – $33,500 | $16,800 – $40,200 |
| Standing seam metal | $15,100 – $26,800 | $20,100 – $35,800 | $25,200 – $44,700 | $30,200 – $53,700 |
| Cedar shakes | $9,200 – $22,600 | $12,300 – $30,200 | $15,400 – $37,700 | $18,400 – $45,300 |
| Clay or concrete tile | $11,700 – $41,900 | $15,700 – $55,900 | $19,600 – $69,900 | $23,500 – $83,900 |
| Synthetic slate | $15,100 – $25,200 | $20,100 – $33,500 | $25,200 – $41,900 | $30,200 – $50,300 |
| Natural slate | $33,500 – $50,300 | $44,700 – $67,100 | $55,900 – $83,900 | $67,100 – $100,600 |
| Flat roof membrane | $6,000 – $52,500 | $8,000 – $70,000 | $10,000 – $87,500 | $12,000 – $105,000 |
How we got these numbers
This page uses the method in our roof replacement cost guide. It multiplies the footprint by the pitch factor to get the area of the roof itself, then multiplies that area by the installed price range for the material.
The pitch factors are geometry, calculated for this page: the square root of one plus the pitch squared. They assume every plane of the roof has the same pitch; dormers, valleys and mixed pitches add surface.
- Flat or low slope (under 2 in 12): × 1
- Low (4 in 12): × 1.054
- Medium (6 in 12): × 1.118
- Steep (9 in 12): × 1.25
- Very steep (12 in 12): × 1.414
The prices per square foot of roof, each quoted in its guide:
- Asphalt shingles: $4 to $11 a square foot, HomeAdvisor, June 2026, from the guide.
- Metal panels (exposed fastener): $5 to $12 a square foot, HomeGuide, November 2025, from the guide.
- Standing seam metal: $9 to $16 a square foot, HomeGuide, November 2025, from the guide.
- Cedar shakes: $5.50 to $13.50 a square foot, HomeAdvisor and Fixr, from the guide.
- Clay or concrete tile: $7 to $25 a square foot, HomeAdvisor, from the guide.
- Synthetic slate: $9 to $15 a square foot, HomeGuide and HomeAdvisor, from the guide.
- Natural slate: $20 to $30 a square foot, HomeAdvisor, from the guide.
- Flat roof membrane: $4 to $35 a square foot, HomeAdvisor, from the guide.
- Replacing decking: $2 to $5 a square foot, HomeGuide, from the guide.
A flat roof takes only a membrane, so the table prices the membrane at a flat pitch and every other material at a medium one. Totals are rounded to the nearest $100. The ranges are national; your roofer's price depends on your roof, your area and the season.