Architectural shingles are the better pick for most homes. They're two layers thick instead of one, carry a 130 mph wind warranty on Owens Corning Duration against 60 mph on its 3-tab, and last about 30 years against 20, per InterNACHI. They cost about $1 to $3 more per square foot installed.
Trinity Exteriors replaces roofs across Greenville and the Upstate, mostly in Owens Corning Duration architectural shingles, and we hold 5.0 stars from 106 Google reviews.
Not sure which kind you've got? Walk to the end of the driveway, look up and squint. Rows of identical flat rectangles, like graph paper somebody left out in the rain since 1994, means 3-tab. A textured roof with little shadows means architectural, and somebody before you paid a bit extra.
Architectural vs 3-tab shingles, side by side
Here are Owens Corning's own numbers for its 3-tab, called Supreme, and its Duration architectural shingle. Duration is the shingle we put on most often, so it's a fair head-to-head. Oakridge, its other architectural line, gets its own section below.
| Owens Corning spec | 3-tab Supreme | Architectural Duration |
|---|---|---|
| Build | One flat layer | Two layers, laminated |
| Size | 12 x 36 inches | 13¼ x 39⅜ inches |
| Warranty | 25-year limited | Limited lifetime |
| Full coverage period | 5 years | 10 years |
| Wind warranty | 60 mph | 130 mph |
| Lab wind tests passed | Class F and Class H | Class F and Class H |
| Algae warranty | 10 years | 25 years |
| Expected life | About 20 years | About 30 years |
| Installed cost | $3 to $5 per sq ft | $4 to $8 per sq ft |
Check the lab test row. Both shingles pass the same two wind tests, ASTM D3161 Class F and D7158 Class H, per the Supreme data sheet and the Owens Corning product guide. The real gap is what the company will put in writing afterwards.
It's like two friends who both swear they'll help you move. Both show up for the pizza. Only one is still there at 9 p.m. when the couch is wedged in the stairwell, and that one is the warranty.
What's the difference between 3-tab and architectural shingles?
A 3-tab shingle is one flat layer of asphalt with two slots cut in it, so each strip looks like three tabs. An architectural shingle is two layers bonded together, so it's thicker, a bit bigger and casts shadows. Both come three bundles to a square, which is 100 square feet of roof.
That's why 3-tab roofs look like a neat brick wall and architectural roofs look like wood shakes from the street. Think of 3-tab as the flip phone of roofing. It still works, it costs less and it does one job. And like the flip phone, the people who still have one will tell you about it at a cookout, unprompted, with a strange amount of pride, right before showing you the battery lasts nine days.

How much more do architectural shingles cost?
Architectural shingles cost $4 to $8 per square foot installed, against $3 to $5 for 3-tab, per Fixr. That's $1 to $3 more per square foot. On a 2,000 square foot roof, the upgrade adds roughly $2,000 to $6,000.
Now spread that over each roof's life. At the middle of each price range, it's a dead tie per year of roof.
| Middle of the range | 3-tab | Architectural |
|---|---|---|
| Installed cost | $4 per sq ft | $6 per sq ft |
| Expected life | About 20 years | About 30 years |
| Cost per sq ft per year | 20 cents | 20 cents |
A builder on the Fine Homebuilding forum called architectural "the best value you can get in terms of $/foot/year of life." So the cheap option only saves money if you move out early.
It's the paper towel aisle all over again. You stand there doing price-per-sheet math on your phone, prove the store brand is four cents cheaper, then picture it folding on a spilled glass of sweet tea and buy the good one anyway.
For what whole roofs cost in the Upstate, see what 19 Greenville homeowners actually paid for a new roof.
Which shingle handles wind better?
Architectural shingles, on paper and in the warranty. Owens Corning's Supreme 3-tab carries a 60 mph wind warranty. Its Duration architectural shingle carries 130 mph, per the product guide. GAF's 3-tab, Royal Sovereign, also tops out at 60 mph of wind coverage.
Sixty sounds like plenty until you remember Hurricane Helene. It gusted to 68 mph at GSP airport in September 2024, per the SC State Climatology Office. That's 8 mph past a 3-tab wind warranty, on a storm that was supposed to be tired by the time it got here.
A 60 mph wind warranty covers wind about as fast as a minivan on Woodruff Road. Only at 5 a.m. on a Sunday, mind you, which is the one hour in recorded history that Woodruff Road has moved at 60 mph. If a storm just went through, book a free roof inspection and we'll check what lifted.

Are 3-tab shingles being discontinued?
Not fully, but they're getting scarce. Nearmap found "a 68% decrease over the last 5 years in unique 3-tab SKUs" sold in the US. Freedonia expects buyers to keep moving toward laminated shingles, citing "consumer interest in replacing three-tab shingle roofs".
There are still plenty of 3-tab roofs in the Southeast. In Georgia next door, 63.6% of 2023 asphalt shingle insurance claims involved 3-tab, per the same Nearmap report. It also found that a matching 3-tab isn't available on the open market 54% of the time.
That matters the day you need a small roof leak repair, because patching a 3-tab roof today is like replacing one plate from the wedding china your aunt picked out in 1998. The pattern's discontinued. The closest match online is called "Eggshell Dawn" instead of "Dawn Eggshell." And every single person at Thanksgiving can tell which plate is the new one.

How long do 3-tab and architectural shingles last?
A 3-tab roof lasts about 20 years and an architectural roof about 30, per InterNACHI.
The warranties split the same way. Supreme's is 25 years with 5 years of full coverage. Oakridge and Duration are "limited lifetime" with 10 years of full coverage, and after that they're prorated, which our roof lifespan guide breaks down year by year.
The quiet difference is algae. Those black streaks love "warm, humid conditions," says the Asphalt Roofing Manufacturers Association. Supreme's algae warranty runs 10 years, and Oakridge and Duration get 25. In an Upstate July, a beach towel left on the porch rail is still damp at Labor Day and has started growing its own opinions, so the extra 15 years earn their keep.
Owens Corning Duration vs Oakridge: what's the difference?
Duration and Oakridge are both Owens Corning architectural shingles, with the same size, the same limited lifetime warranty and the same 25-year algae coverage. The difference is the nailing strip. Duration has SureNail, a woven fabric strip across the nailing line, and Owens Corning gives it a 130 mph wind warranty. Oakridge is rated 110 mph with the standard four nails, and 130 mph only with six nails plus Owens Corning starter shingles at the eaves and rakes.

Duration is also rated Class 3 for impact resistance in the product guide, a line the Oakridge listing doesn't carry. Owens Corning adds straight away that a class rating doesn't guarantee a shingle will survive hail, and that its shingles "are not covered under a warranty for hail damage."
Picking a color is where it gets personal, because Owens Corning sells a shade called Driftwood in both lines. You'll hold up Driftwood and Driftwood under the store lights, ask your spouse which one, hear "whatever you think," and realize far too late that "whatever you think" was a test you were never going to pass.
When do 3-tab shingles still make sense?
3-tab still makes sense on a shed or detached garage, on a roof you plan to replace soon anyway, or for a small repair on an existing 3-tab roof where a matching shingle is still on the shelf. For a house you'll live in for ten years or more, the per-year math above points to architectural.
Selling soon? 37% of Realtors recommend new roofing before listing, per the National Association of Realtors. Buyers will glance at your roof for a few seconds. They'll spend every one of them deciding whether you're the kind of person who also skipped the furnace filter, the gutter cleaning and the weird noise the dishwasher makes.
- Pick 3-tab for a shed, a detached garage or a short-term roof
- Pick architectural for a home you'll keep, or a home you'll sell
- Pick a 130 mph wind warranty if Helene left you nervous
What we see on Upstate roofs
Most roofs we've put on lately are Owens Corning Duration, in Driftwood in Taylors, Onyx Black in Piedmont and Brownwood in Fountain Inn and Travelers Rest. Ice and water barrier goes on at the eaves, valleys and penetrations as our standard.
"TRC did a great job gutting and replacing our home roof with top of the line materials ... rated to withstand 130 mile per hour winds" - David P., Google review
Our reply to David said it plainly: "That Owens Corning Duration upgrade will definitely protect your home." "We were able to choose the roof shingles we wanted," wrote the Ramseys, and Theodore D. wrote that after his insurer approved the claim, "they then worked with us on some roofing material upgrades we wanted."
Choosing is the fun part, and the hardest. Hold the sample against the brick, then the shutters, then walk to the mailbox and do it again. Shingles change color in sunlight the way your face changes in a dressing room mirror, and both are upsetting at noon.
As for the flip phone? Let it retire somewhere quiet. It's earned it.

Questions people ask about architectural vs 3-tab shingles
Are architectural shingles worth the extra cost?
For most homes, yes. They cost about $1 to $3 more per square foot but last about 10 years longer, so the cost per year of roof comes out about the same.
How long do 3-tab shingles last?
About 20 years, per InterNACHI, and 15 to 20 per Fixr.
Do they still make 3-tab shingles?
Yes. Owens Corning still sells Supreme and GAF still sells Royal Sovereign. But Nearmap counted 68% fewer 3-tab products in five years, so matching an old 3-tab roof is getting harder.
Is Owens Corning Duration better than Oakridge?
Duration has the SureNail strip, a 130 mph wind warranty with four nails and a Class 3 impact rating. Oakridge needs six nails and starter shingles to reach 130 mph.
Find out which shingle fits your roof
The right shingle depends on your roof, your budget and how long you're staying.
We'll look at yours for free across Greenville and the Upstate and tell you what fits. Book a free roof inspection, or see how we replace roofs in Greenville.
Read this next: How long does a roof last? What Upstate heat does to every material.
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