Stone-Coated Roof Installation: Avoid These Common Mistakes

2025-12-31
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   Stone-coated metal roofs have become one of the most reliable roofing systems for residential and commercial buildings worldwide. Their durability, lightweight structure, and attractive appearance make them a preferred choice for homeowners, contractors, and architects.

To help contractors, distributors, and property owners achieve long-lasting results, here are the most common installation challenges of stone-coated roofs—along with practical solutions.

1. Incorrect spacing, uneven battens, or using unsuitable timber can lead to poor tile alignment and reduced wind resistance.

· Follow recommended batten spacing (usually 360–380 mm depending on profile).

· Ensure battens are level and securely fixed; use pressure-treated wood.

· For batten-less systems, confirm the deck is flat, clean, and structurally sound.

2. Using the wrong type of fasteners, insufficient quantity, or incorrect positioning can cause tiles to shift, lift, or rattle in high winds.

· Use corrosion-resistant nails or screws designed for stone-coated roofs.

· Use the correct number of fasteners per tile—usually four to six depending on wind zone.

· Ensure nails penetrate deep enough into the batten or deck for maximum hold.

3. Incorrect side laps or vertical overlaps can create gaps, causing leaks or wind uplift.

· Maintain proper side-lap spacing according to the manufacturer.

· Begin at the eave and install upward row by row.

· Check alignment every few rows to avoid cumulative deviation.

4. Improper cutting can damage the stone coating and expose steel edges to potential rusting.

· Use guillotine cutters or nibblers instead of abrasive cutting disks.

· Seal any exposed edges with manufacturer-approved touch-up paint.

· Avoid excessive force or bending during cutting.

5. Install ridge and hip caps using the correct support structure and fastening methods.

· Use matching accessories from the same roofing system for best compatibility.

· Seal all joints with approved sealant.

· Ensure trim pieces overlap correctly and follow the roof’s lines smoothly.

Stone-coated metal roofs are engineered for decades of performance, but only if installed according to industry standards. At Sangobuild, we support our partners with complete installation manuals, training resources, and on-site technical guidance to ensure every project is built to last.

If you need installation training, product documentation, or expert advice, feel free to contact our technical team anytime.

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