Commercial Roof Deck Repairs: What Every Gainesville Business Needs to Know

Whether you're managing a warehouse in Buford or running a retail plaza in Cumming, your roof deck is the foundation of your building’s entire roofing system. When it's compromised—by water damage, rot, corrosion, or improper installation—it puts everything at risk.

At L&L Roofing & Construction, we handle roof deck repairs with the integrity, skill, and experience that commercial property owners deserve. Here's what you need to know.

What Is a Roof Deck?

The roof deck is the structural surface that sits between your building’s framing and the roofing membrane. Common materials include:

• Steel panels (common in commercial settings)

• Plywood or OSB (found in some light commercial buildings)

• Wood planks (in older structures or high-end finishes)

A roof deck must be strong, level, dry, and clean to support any type of roofing system. If it fails, your whole roof system is compromised.

When Do Roof Decks Need Repair?

Signs that your commercial roof deck may need repair include:

• Visible sagging or deflection

• Corrosion or rust on steel decks

• Soft spots under foot traffic

• Leaks that reoccur after membrane repair

• Rotten or delaminated plywood

• Hail or fire damage

• Code violations or failed inspections

The NRCA (National Roofing Contractors Association) states that any damaged or deteriorated sections must be removed and replaced before installing new roofing.

How We Approach Roof Deck Repairs

1. Evaluation

We start with a thorough visual inspection and moisture testing. On recover projects, we assess whether the deck is suitable for re-roofing or requires tear-off.

2. Material-Specific Repairs

Steel Roof Decks:

• Repaired using replacement panels welded or fastened to match existing ribs and gauges.

• Any welding follows strict safety and structural guidelines.

Plywood or OSB Decks:

• We use APA-rated panels with proper thickness (minimum 15/32").

• Repairs match the original span ratings and fastener patterns to avoid compromising strength or causing visual issues through metal panels.

Wood Plank Decks:

• Repaired with materials matching original specs—plank size, type, and fastening pattern. Even slight changes can impact roof aesthetics or performance.

3. Code Compliance

All repairs adhere to IBC Section 1511 and IEBC Section 705, ensuring the roof maintains its original fire, structural, and weather-resistant performance.

4. Preparation and Safety

• Decks must be clean, dry, and smooth before applying insulation or membranes.

• All repairs are made with proper fall protection and without damaging surrounding systems or compromising warranties.

Why Trust L&L Roofing?

We’ve helped business owners across Gainesville and North Georgia protect their investments by doing things the right way—not the easy way.

From storm damage recovery in Dawsonville to full metal roof retrofits in Flowery Branch, our approach is built on:

• Honesty & integrity

• Expert craftsmanship

• Faith-driven service

• Real relationships with our clients

FAQs

How do I know if my commercial roof deck needs repair or replacement?
If you see recurring leaks, feel soft spots under foot, or find corrosion or rot, it’s time for a professional inspection. We’ll assess whether localized repairs or full deck replacement is the safest route.

Can I re-roof over a damaged deck?
Not safely. The NRCA and IBC require damaged sections to be replaced before any new roofing system is applied.

Does L&L Roofing handle metal deck repair for standing seam systems?
Yes. We specialize in standing seam systems and retrofit projects for commercial properties. We follow all MCA guidelines for compatible materials, fasteners, and coating protection.

What about code inspections and permits?
We handle everything—from permits to final inspection—so your business stays compliant with Georgia building codes.

Need roof deck repairs on your commercial building in Gainesville or surrounding areas?
Call us today at (770) 874-0372 or visit www.llroofs.com for a free evaluation.

We do the right thing—because it’s the right thing.