2026 project cost
Install Slate Roof Cost
$15,486 to $29,734 for 1,000 sq ft, or about $15.49–$29.73 per sq ft. That covers 6 material line items and about 60 labor hours, plus a permit.
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Estimated total
$15,486 – $29,734
materials + labor + permit
What the materials cost
Quantities for 1,000 sq ft, including a 18% waste allowance.
| Material | Qty | Cost |
|---|---|---|
| Slate Roofing Tiles | 11.8 SQ | $7,080 – $17,700 |
| DecoRidge 10In. Slatestone Gray Hip Ridge Roof Shingles ( 20-lin ft per Bundle ) | 47.2 EA | $2,491 – $3,517 |
| Roofing Felt Underlayment | 4.72 ROLL | $189 – $378 |
| Copper Roofing Nails | 11.8 LB | $106 – $212 |
| 8-in x 20-ft Copper Copper Roll flashing | 2.36 EA | $91 – $129 |
| Drip Edge | 11.8 LF | $24 – $53 |
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How long it takes
- 1
Remove Old Roofing & Inspect Deck 24-32 hours
Strip existing roofing materials, dispose of debris per your area regulations, and inspect the roof deck for damage. Repair or replace any compromised sections to ensure a solid base for slate installation.
- 2
Install Underlayment & Flashing 16-24 hours
Lay waterproof underlayment and install flashing around valleys, chimneys, and roof edges. Ensure all materials are properly overlapped and sealed to meet your area building codes.
- 3
Lay Slate Tiles 80-90 hours
Begin at the eaves and work upward, nailing each slate tile in place with corrosion-resistant fasteners. Stagger joints and maintain consistent exposure, following recommended patterns for your area weather conditions.
- 4
Install Ridge, Hip, and Vent Components 16-20 hours
Fit ridge and hip slates, install venting systems, and ensure all joints are watertight. Use compatible materials and techniques approved for slate roofs in your area.
- 5
Final Inspection & Cleanup 4-6 hours
Inspect the entire roof for proper installation, secure loose tiles, and clean up the site. Dispose of waste according to your area guidelines and confirm compliance with local roofing standards.