What to Ask When Hiring a Slate Roofer in North Carolina

Slate roof

When it comes to slate roof repair or restoration, hiring the right roofing professional is critical. Slate is a durable, beautiful material—but it requires specialized knowledge and techniques that not all roofers possess. A general roofer may unintentionally damage your roof if they’re unfamiliar with the proper methods.

If you're searching for “slate roofing expert in North Carolina” or “slate roof repair near me,” here's what to ask before trusting anyone with your slate roof:

1. Do You Use a Grinder to Cut Slate?

✅ The right answer: No

Using a grinder is a red flag. A qualified slate roofer uses a slate cutter, which leaves a rough, natural edge. This texture is important for proper seating and secure installation. A grinder’s smooth cut can compromise the slate’s performance and the roof’s overall appearance.

2. Is It Okay to Walk Directly on Slate Tiles?

✅ The right answer: Absolutely not

Walking on slate can crack or dislodge the tiles. Professionals use slate jacks with planks, or a ladder hook and ladder, to distribute weight and avoid direct pressure on the tiles. If a contractor says it's safe to walk on slate—keep looking.

3. Do You Use Copper Cleats for Slate Repairs?

✅ The right answer: No

Copper cleats are not suitable for slate repair. Instead, slate hooks should be used to securely fasten replacement tiles without disturbing surrounding pieces. This detail is crucial for maintaining the structural integrity and longevity of the roof.

4. Should Slate Tiles Overhang the Gable? By How Much?

✅ The right answer: Yes, by approximately 1 inch

A proper overhang of around 1 inch allows for correct water runoff and protects the roof structure from moisture damage. Contractors unfamiliar with slate may overlook this detail, leading to premature deterioration.

5. Do You Use Caulk for Counter Flashing?

✅ The right answer: No caulk should be used

Caulk deteriorates over time and is not suitable for slate roofing. The appropriate method is to use masonry cement for tuck-pointing the counter flashing. This creates a long-lasting, weather-resistant seal around chimneys and walls.

How to Evaluate the Condition of Your Slate Roof

If you're considering a major repair or replacement, it helps to understand the general condition of your current slate:

• Tap the slate gently with a hand-held hammer:

  • A clear ringing sound = sound slate in good condition

  • A dull thud = may indicate aging or moisture-damaged slate

  • A rattling sound = suggests the slate is cracked or loose

Also, look for visible cracks, chips, or signs of delamination. If you’re unsure, you can request a professional roof evaluation to help guide your next steps.

Bonus Question: Who Will Be Doing the Work?

Ask whether the person you’re speaking to will be performing the work directly. Look for professionals who have hands-on experience working with slate, not just general roofing knowledge.

Why It Matters

Slate, clay tile, and copper roofs require a different level of skill and understanding than standard asphalt roofing. Asking the right questions can help you find a qualified professional and avoid costly mistakes.

At Carolina Slate, we provide roof evaluations, repairs, and restoration services across North Carolina for slate, clay tile, and copper roofs. Whether you own a historic home or a custom roof, we’re here to help you preserve it with expert care.

Looking for a professional evaluation of your slate roof?
Visit www.carolinaslate.com or contact us to schedule a roof evaluation today.