Norcross has some of the oldest industrial and warehouse stock in Gwinnett County, a lot of it built in the 80s and 90s with roofs that are well past their design life. If you’re staring at ceiling stains, rising energy bills, or a roof that’s failed one inspection too many, warehouse roof replacement in Norcross, GA is a decision that comes down to a few hard numbers: square footage, current system condition, and how much longer you plan to run the building as-is.
Signs Your Warehouse Roof Is Done, Not Just Leaking
A leak doesn’t always mean replacement. Sometimes it means a $2,000 repair. But a few signs point toward full replacement instead of another patch:
- Multiple leaks in different areas, not just one recurring spot
- Membrane that’s brittle, cracked, or shows widespread seam failure
- Wet insulation confirmed by a moisture scan (water sits and spreads under the membrane long before it shows up inside)
- The roof is already past or close to its rated service life (15-20 years for most single-ply systems)
- You’re paying for repairs every storm season with no end in sight
A roof inspection tells you which category you’re in before you spend money guessing. Our roofing team runs Haag-certified inspections specifically to make that call — repair, or replace.
Why Warehouse Roofs Fail Early in Gwinnett County
A handful of local conditions push warehouse roofs in Norcross toward replacement faster than the manufacturer’s rated lifespan would suggest. Hot, humid summers stress membrane seams and adhesives more than a drier climate would. Heavy spring pollen and leaf litter from the tree cover around Gwinnett’s industrial parks clog drains and scuppers, and a roof that can’t drain will pond — ponding water is one of the fastest ways to shorten the life of a built-up or modified bitumen roof. And a lot of the warehouse stock in this corridor was insulated to a code standard from decades ago, well below current energy code, which means even a roof with no active leak can be running higher cooling costs than it should. None of that means a roof is doomed on any fixed schedule — it’s why the inspection and moisture scan matter more than the roof’s age on paper.
What Warehouse Roof Replacement in Norcross, GA Actually Involves
Warehouse roofs are almost always low-slope, which means single-ply membrane systems, not shingles. The process runs in a fairly consistent order:
- Inspection and moisture scan — infrared or capacitance testing to map where insulation is already wet, since wet insulation has to come out regardless of what’s driving the project.
- Tear-off or recover decision — if the deck and insulation are dry and sound, a recover (new membrane over existing) can sometimes work. If insulation is wet, it’s tear-off, no way around it.
- Deck repair — any rusted or rotted metal deck panels get replaced before new insulation goes down.
- New insulation and membrane — insulation set to current code R-values, then the membrane installed and all penetrations, drains, and terminations detailed.
- Rooftop equipment coordination — HVAC curbs, condenser pads, and walkway pads around rooftop units get pulled, flashed, and reset as part of the sequence, not treated as an afterthought once the membrane’s already down.
- Final inspection and warranty documentation — manufacturer inspections for systems carrying a material or system warranty.
The part owners underestimate is staging. A working warehouse can’t just shut down for three weeks. Sequencing the tear-off in sections, keeping the building weathertight overnight, and coordinating around forklift traffic and dock doors is the actual skill in this job — not just laying membrane.
Roofing System Options for Warehouses
| System | Typical Use Case | Rough Lifespan |
|---|---|---|
| TPO (single-ply) | Most common choice today — reflective, seams heat-welded | 20-25 years |
| EPDM (rubber) | Good for buildings with heavy rooftop equipment or ponding water | 20-25 years |
| Modified bitumen | Older buildings, torch-down or cold-applied | 15-20 years |
| Built-up (BUR) | Legacy systems, still found on older Norcross warehouses | 15-20 years |
TPO has become the default for most warehouse replacements because it’s reflective (lower cooling costs on a big flat roof), the seams weld rather than glue, and material cost has come down as adoption grew. EPDM still makes sense on roofs with a lot of ponding or rooftop units where the membrane needs to flex more.
Warranty Coverage: What Comes with a New System
Manufacturer warranties on commercial roofing come in two tiers, and the difference matters. A material-only warranty covers defects in the membrane itself but nothing about how it was installed. A full system, or no-dollar-limit (NDL) warranty, covers material and workmanship and typically requires the installing contractor to hold manufacturer certification — this is why GAF and Mule-Hide certification isn’t just a badge, it’s what makes the stronger warranty tier available in the first place. Most warehouse system warranties run 15-20 years, but they can be voided by unrelated rooftop work (a satellite dish mounted by someone else, an HVAC contractor cutting a new curb) done after installation without notifying the roofer of record. Ask any contractor bidding the job which warranty tier they can actually offer before comparing price.
What It Costs
These are general market ranges for the metro Atlanta and Southeast region, not a quote — every warehouse roof needs a walk and a measurement before a number means anything.
- Recover (membrane over existing, dry insulation): roughly $4-$7 per square foot
- Full tear-off and replacement: roughly $6-$12 per square foot
- Tear-off with deck repair or code-required insulation upgrades: can run $10-$15+ per square foot
A 50,000 sq ft warehouse at the low end of a straight recover might land around $200,000; the same building needing full tear-off with deck repair can push past $500,000. What moves a project to the top of the range: wet insulation across a large area, rusted deck sections, tapered insulation to fix ponding, or code upgrades triggered by the scope of work — a full tear-off on an older building often has to meet current energy code insulation R-values even though the original roof never did, and that upgrade is required, not optional, once the permit is pulled. What keeps it at the bottom: a dry, sound deck, straightforward drainage, and a recover instead of tear-off. An on-site inspection is the only way to know which side of that range your building falls on.
Permitting and Working in Gwinnett County
Norcross warehouse roof work generally requires a commercial building permit through Gwinnett County, and larger scopes may need engineering review if insulation thickness or roof loading changes. A GC that’s pulled these permits before knows what the county wants to see on the drawings the first time, which keeps the project from stalling in review. We handle that permitting as part of the project, not as a separate line item you have to chase down yourself.
Choosing a Contractor for This Job
A lot of warehouse roof jobs touch more than the roof — deck repair means structural steel or metal deck subs, electrical needs to come off before rooftop unit work, and interior racking sometimes has to move to keep product dry during tear-off. Integrity CRR self-performs its roofing work with its own crews, and a principal is on the job. Any non-roofing trade the project pulls in is handled the way we handle everything else — as the general contractor, managing subs with a track record on prior projects. That means one point of contact managing the roofer, the electrician, and anyone else the scope touches, instead of you coordinating three separate contracts.
A few questions worth asking any contractor bidding this work before you sign anything:
- Do they self-perform the roofing, or is it subbed out to a crew you’ll never meet?
- Are they GAF and Mule-Hide certified, and can they confirm which warranty tier that unlocks for your system?
- Do they hold an active Georgia GC license, and will they pull the permit themselves?
- Is the estimate written by someone who’s actually inspected the roof, or a number generated off satellite measurements?
We’re GAF and Mule-Hide certified, which keeps material warranties intact on the systems most warehouses use, and you can check our background on the about page — license numbers, bonding, and credentials included.
If your warehouse is elsewhere in the metro, we cover the Norcross and Atlanta area broadly, including Duluth, Peachtree Corners, and Lawrenceville. You can see completed work in our projects gallery, and read more on our general commercial capabilities beyond roofing.
If a storm event is what pushed your roof over the edge rather than age alone, that’s a different process — see our storm restoration page for how insurance claims factor in.
Call (833) 423-6255 or contact us to schedule a warehouse roof inspection in Norcross. We’ll tell you straight whether you’re looking at a repair or a replacement before any number gets attached to it.
Frequently Asked Questions
How long does a warehouse roof replacement take in Norcross?
It depends on square footage and system, but a typical 30,000-60,000 sq ft warehouse tear-off and replacement runs 2-4 weeks in reasonable weather. Larger buildings or projects with deck repair take longer. We sequence the work in sections so the building stays weathertight overnight and operations can often continue underneath.
Can we keep operating the warehouse during roof replacement?
In most cases, yes. Roofing crews work in sections rather than opening the entire roof at once, and we coordinate around dock door use, forklift paths, and shift schedules. If racking or inventory needs to shift to stay dry during a section of tear-off, we plan that into the schedule ahead of time.
Is a roof recover cheaper than full replacement, and is it a good option?
A recover (new membrane over the existing one) is usually less expensive per square foot than full tear-off, but only works if the insulation underneath is dry and the deck is sound. A moisture scan during inspection tells you which situation you’re in — if insulation is already wet, a recover just traps the problem instead of fixing it.
Do I need a permit for warehouse roof replacement in Norcross?
Yes, commercial roof replacement in Norcross typically requires a building permit through Gwinnett County, and scopes that change insulation thickness or add rooftop equipment loads may need engineering review. We pull and manage these permits as part of the project.
What warranty comes with a new warehouse roof?
Most systems carry either a material-only warranty or a stronger no-dollar-limit (NDL) system warranty covering both material and workmanship, typically 15-20 years. The NDL tier generally requires the installer to hold manufacturer certification — we’re GAF and Mule-Hide certified, which is what makes that tier available on the systems we install. Keep in mind a warranty can be voided by unrelated rooftop work done later without notifying the roofer of record.
Does insurance cover warehouse roof replacement, or is it out of pocket?
It depends on what’s driving the replacement. Wear and age on a 20-year-old roof is generally not a covered claim — that’s a capital repair the owner budgets for. Hail, wind, or other storm damage can be a covered claim, but it has to be documented and scoped correctly to get paid what it’s actually worth. If a storm is why you’re looking at replacement, see our storm restoration page for how that process works differently from a straightforward replacement.