When homeowners think “roof,” they picture shingles. But the real backbone of your roof—the sheathing—is what keeps everything stiff, dry, and energy-efficient. And while there’s plenty of debate about plywood vs. OSB, here’s the truth: OSB is the most widely used sheathing material in North Carolina roofing—and for good reason.
🛡️ What Is Roof Sheathing, Really?
- Anchors your roofing system
- Adds rigidity against wind uplift
- Helps seal out drafts and moisture
Most homes in the Triangle use OSB (Oriented Strand Board) or CDX plywood, depending on the roof design, spacing, and budget.
⚖️ OSB vs. Plywood: What Actually Matters?
| Material | Why Roofers Use It | What Homeowners Should Know |
|---|---|---|
| OSB (7/16″–3/4″) | Cost-effective, consistent, widely available | Performs well when installed with proper ventilation and moisture control |
| CDX Plywood (1/2″–5/8″) | Slightly stronger nail hold, better moisture resistance | Costs more and is often reserved for specialty installs |
| Tongue-and-Groove Plywood | Interlocking fit for vaulted ceilings | Heavier and pricier—used selectively |
| SIPs or Composite Panels | Built-in insulation | Requires specialized installation and isn’t common in reroofs |
At Artisan, we use high-grade OSB for most installs because it meets code, performs reliably, and allows us to deliver quality without inflating costs. For vaulted ceilings or wider rafter spacing, we may recommend CDX plywood—but it’s always based on the structure, not preference.
🧰 How We Install Your Roof Deck
- Remove old decking and inspect for rot or sagging
- Install new OSB panels in a staggered pattern with ring-shank nails
- Apply ice & water shield at eaves and valleys
- Seal with synthetic underlayment before shingles go on
🧠 FAQs Homeowners Ask Us
- Is OSB strong enough for my roof?
- Yes. When installed correctly, OSB meets all structural and wind uplift requirements for residential roofing.
- Will OSB swell or warp?
- Only if exposed to standing water for extended periods. Our ventilation and underlayment systems prevent that.
- Why not use plywood everywhere?
- Plywood costs more and isn’t necessary for most homes. We reserve it for specific structural needs—not as a blanket upgrade.
- How long will my sheathing last?
- With proper ventilation and no leaks, OSB or plywood decking can last 25–30 years.
💬 What Our Clients Say
“Artisan replaced all the decking on our roof and explained why OSB was the right choice for our home. No upselling, just facts. The crew was efficient and respectful.”
“I was worried about cheap materials, but Artisan walked me through the sheathing options and showed me how OSB meets code and performs well. Felt totally confident in their recommendation.”
“I asked about plywood vs. OSB and they explained the pros and cons without trying to sell me on the more expensive option. That kind of honesty is rare.”
🏠 Artisan’s Promise
We don’t upsell materials—we match them to your roof’s needs. Whether it’s OSB, CDX, or tongue-and-groove, our goal is the same: a roof that performs quietly and reliably for decades.
