Stone-coated metal roofing combines durability, aesthetics, and weather resistance, but proper installation is critical for performance. Follow this step-by-step guide for a flawless roof.
📌 Pre-Installation Checklist
✅ Materials Needed:
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Stone-coated metal tiles (Decra, Met-Tile, Boral, etc.)
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Corrosion-resistant screws (color-matched, with EPDM washers)
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Synthetic underlayment (e.g., synthetic felt, 30#)
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Metal drip edge & flashing (for eaves, valleys, chimneys)
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Ice & water shield (for cold climates)
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Ridge & hip caps (matching the tile profile)
✅ Tools Required:
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Impact driver/drill (for screws)
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Metal snips/circular saw with metal blade (for cutting)
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Chalk line, measuring tape, level
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Safety harness, gloves, knee pads
✅ Roof Deck Preparation:
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Ensure deck is structurally sound (plywood/OSB, no rot).
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Check local building codes for wind/uplift requirements.
🔧 Step-by-Step Installation
1. Install Underlayment & Drip Edge
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Step 1: Lay synthetic underlayment horizontally, overlapping rows by 4–6 inches.
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Step 2: Secure metal drip edge along eaves with roofing nails.
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Step 3: Apply ice & water shield in snow-prone areas (first 3–6 ft of roof).
2. Install Starter Course
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Step 1: Place starter metal strip (or cut first tile) at the eave edge.
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Step 2: Fasten with screws every 12–16 inches.
3. Lay the Tiles
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Step 1: Begin at the bottom corner, aligning tiles with the starter strip.
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Step 2: Fasten with color-matched screws at pre-punched holes (do not over-tighten).
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Step 3: Overlap tiles as per manufacturer specs (usually side lap of 1–2 ribs).
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Step 4: Use chalk lines to keep rows straight.
4. Cut & Fit Around Obstacles
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Step 1: For valleys, use W-metal flashing sealed with roofing cement.
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Step 2: For vents/chimneys, install step flashing under tiles.
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Step 3: Use metal snips for precise cuts (avoid jagged edges).
5. Install Ridge & Hip Caps
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Step 1: Bend ridge cap tiles over the roof peak.
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Step 2: Secure with screws every 12 inches.
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Step 3: Seal edges with high-quality roofing sealant.
⚠️ Critical Dos & Don’ts
✔ DO:
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Follow manufacturer’s screw placement (prevents leaks).
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Install in moderate weather (avoid extreme heat/cold).
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Use safety harnesses on steep roofs.
❌ DON’T:
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Walk on installed tiles without crawl boards.
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Overlap tiles incorrectly (causes water infiltration).
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Mix tiles from different batches (color variations).
⏳ Time & Cost Estimate
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Labor: 2–5 days (for an average 2,000 sq. ft home).
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Cost:
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Materials: 7–7–15 per sq. ft.
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Installation: 4–4–8 per sq. ft.
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🌧️ Post-Installation Inspection
✅ Check for loose screws, gaps, or misaligned tiles.
✅ Clean debris with a soft brush (no pressure washers).
✅ Reapply sealant every 5 years if needed.
🚀 Pro Tips for Best Performance
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For high-wind zones, use adhesive strips under tiles.
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For snow regions, install snow guards to prevent sliding.
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Warranty: Register installation with the manufacturer.