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Shingle guide

Architectural vs 3 Tab Shingles: Which Is Better for a Florida Roof?

Architectural shingles are two bonded layers with a random look. 3-tab shingles are one flat layer cut into three tabs. Wind ratings come from the test class on each product, not the style, but architectural lines usually carry longer warranties and higher wind limits, which is why most Florida roofs now get them.

By Josh Hildebrand, owner of Coastline Roofing · Florida license CCC1331076 ·

You found two shingle names on a quote and want to know if the cheaper one is a good deal. Here is what each one is, what the code says, and how to choose.

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The basics

What is the difference between architectural and 3-tab shingles?

A 3-tab shingle is one flat layer with two cutouts that make three tabs. An architectural shingle, also called laminated or dimensional, is two layers bonded together with a random, layered look.

Both are asphalt shingles, and both are tested the same way for wind and fire. The difference is how much shingle you get and how it is built.

Fine Homebuilding describes a 3-tab shingle as a single layer with cutouts that form vertical lines up the roof, a look that mimics slate without the depth. A laminated shingle has two layers and a random three-dimensional pattern. Premium laminated lines add more layers or thicker layers. People use "architectural," "laminated" and "dimensional" for the same family.

Manufacturer pages show the size gap. Owens Corning's Supreme 3-tab is 12 by 36 inches with a 5-inch exposure, so it takes 80 shingles to cover a roofing square (100 square feet). Its Oakridge laminated shingle is about 13 1/4 by 39 3/8 inches with a 5 5/8-inch exposure, 64 shingles to the square, and a full double layer in the nailing zone. Atlas Pinnacle Pristine, the shingle Coastline uses by default, is 42 by 14 inches with a 6-inch exposure.

3-tab and architectural shingles side by side
Feature3-tabArchitectural (laminated)
LayersOne layer, cut into three tabsTwo or more bonded layers
LookFlat, with even vertical linesRandom, layered, with shadow lines
Example size (Owens Corning)Supreme: 12 by 36 inches, 80 per squareOakridge: about 13 1/4 by 39 3/8 inches, 64 per square
Nailing zoneSingle layerFull double layer (Oakridge)
Wind ratingSet by the test class on that product, not by the styleSet by the test class on that product, not by the style
WarrantyGenerally shorter periods (Fine Homebuilding)Usually 40 years, 50 years or lifetime, pro-rated
PriceSlightly less than a basic laminated shingleBasic laminated costs a little more; premium lines cost more
MarketStill made, used less each yearHas come to dominate the market

Not sure which shingle is on your roof?

Coastline can inspect the roof and send a written photo report that shows the shingles, the edges and the nail lines, plus a straight answer on repair or replacement. Coastline Roofing works all over Florida (license CCC1331076).

Call (941) 896-7793 or text your town and a photo.

Why it changed

Why is 3-tab less common on Florida roofs today?

No single rule banned it. Several things pushed homeowners and roofers toward architectural shingles.

The market moved

Fine Homebuilding says laminated shingles have come to dominate the market, while major makers still sell 3-tab. In January 2025 Owens Corning told distributors it was stopping Supreme sales in seven plant service areas "to align better with market demand." Supreme is still listed for the Jacksonville, Florida service area.

Warranties run shorter

Fine Homebuilding notes that 3-tab warranties are generally for shorter periods. Lifetime and 40 to 50 year warranties are usually pro-rated, so read the fine print on any shingle.

Wind warranty numbers differ

Atlas's own warranty chart lists wind limits from 60 mph on its entry lines up to 130 mph on Pinnacle Pristine with the standard 4-nail install. The number is a promise from the maker, not a test result.

Code looks at the test class

Florida's code asks for a wind test class that matches your zone. A 3-tab shingle can only go on if its wrapper shows a class that fits. Many makers rate whole lines Class F or H, so check the product, not the style.

Insurers read the code, not the shape

Citizens lists a roof covering credit for shingles that meet the Florida Building Code. Style is not the test. Whether your shingle qualifies comes from its product approval or permit date.

Hail results are mixed

IBHS lab tests found basic architectural shingles did slightly better than basic 3-tab on impact. Among Class 4 impact-rated products, the 3-tab version did about 40 percent better at the Class 4 steel ball impact. Style alone does not settle it.

Florida code

Does a 3-tab shingle meet the Florida Building Code?

It can, if the product passed the wind test class your zone calls for and it is installed to the maker's instructions and the code.

The Florida Building Code, Residential (2023) says shingles must be tested to ASTM D3161, TAS 107 or ASTM D7158 and meet the class that matches the basic wind speed on the state map. The wrapper must carry the label. Shingles are held with at least four nails per strip shingle, or more if the maker requires it.

In the code table, ASTM D3161 Class F and ASTM D7158 Class H appear in every wind-speed row, from 110 mph up to 194 mph. Our guide to shingle wind ratings in Florida shows the whole table. Our guide to design wind speed in Manatee and Sarasota explains how to find the number for your address.

A 3-tab shingle does not get a pass for being old, and it does not get marked down for being 3-tab. The product approval and the wrapper decide. If you are not sure what is on your roof, the permit from the last roof job and the Florida Product Approval number are the paper trail. That same paper trail is what the state wind mitigation form asks for in its roof covering question. See the roof questions on your wind mitigation form.

Where 3-tab still shows up

Atlas's installation instructions tell roofers to use a Pro-Cut starter shingle or a trimmed 3-tab shingle for the starter course, the row along the eave. So 3-tab products still have a job on an architectural roof.

Your roof

How do you tell which kind of shingle is on your roof?

Look at the pattern. Even, straight vertical slots running up the roof mean 3-tab. A random, staggered look with no repeating pattern means architectural.

A photo from the ground or a drone shot is usually enough to tell. These steps help you confirm it and find the paper behind it.

  1. Look at the pattern

    3-tab roofs show even slots running straight up the roof. Architectural roofs look random, with thicker, shadowed edges.

  2. Find the permit

    The county permit for your last roof job lists the date and often the product. Our guide to roof permits in Florida explains how to look yours up.

  3. Check the wrapper or invoice

    Shingle wrappers must be labeled with the wind test class. An old invoice or the roofer's product sheet often shows the product name and Florida Product Approval number.

  4. Count the years

    Our guide to how long roofs last in Florida covers what age means for your decision, whatever the style.

  5. Ask for a written photo report

    A roofer who inspects the roof can photograph the shingles, the edges and the nail lines and tell you plainly what is there.

Your choice

Which shingle should you choose in Florida?

For most homes the choice is an architectural shingle with a Class F or Class H wind test and a wind warranty that fits your zone.

Coastline's default shingle is the Atlas Pinnacle Pristine, an architectural shingle. Atlas warrants it to 130 mph with its standard 4-nail install, and lists ASTM D7158 Class H (passed at 150 mph) and ASTM D3161 Class F (tested at 110 mph) on its data sheet. Atlas also lists 3M Scotchgard algae protection. Other major brands are available on request. Our guide to the best shingles for a Florida roof compares them, and the Pinnacle Pristine guide goes through the Atlas specs line by line.

For what it costs, see our shingle roof cost guide. If your roof is a few years from the end of its life, Coastline's shingle roofing and roof replacement pages explain what a job looks like. Coastline is not a certified installer for Atlas or any other brand.

Josh reviews every job, and the crew follows a checklist.

Reviews

What homeowners say about working with Coastline

★★★★★
"From beginning to end the roof was done in 2 days. One night the crew stayed until 8:00. Each evening before leaving the crew ensured the yard was cleaned. We are so happy, and our roof is beautiful!"
Sharon T.Roof replacement
★★★★★
"Russell was great to work with. He was prompt in coming out to assess our roof and very knowledgeable. ... The job was complete in 2 days once work began."
Bryan S.Roof replacement
★★★★★
"Josh was especially amazing. He was professional, patient, and took the time to explain everything clearly so I felt comfortable and informed throughout the entire process. You can tell he genuinely cares about his customers and takes pride in his work."
Madison T.Roofing customer
Keep reading

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Shingle roof repair and replacement across Manatee County and the Gulf Coast.

See our shingle roofing →

Best Shingles for Florida

How to read the wind and algae labels on any shingle brand.

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Shingle Roof Cost in Florida

What drives the price of a shingle roof here.

See the cost guide →

Also see shingle wind ratings and Class 4 impact shingles.

FAQ

More questions

Do 3-tab shingles last as long as architectural shingles?

Warranties are a rough guide: Fine Homebuilding says 3-tab warranties are generally for shorter periods, and the author recalls a standard 3-tab shingle being expected to last 15 to 20 years decades ago. We found no Florida study that puts a number on either type. Heat, ventilation and nailing all matter. See our guide on how long roofs last in Florida.

Are 3-tab shingles cheaper?

Slightly. Fine Homebuilding says 3-tab shingles cost a little less than basic laminated shingles, while premium laminated lines cost more. The shingle is only part of a roof bill, so ask for the whole job priced both ways.

Are architectural and dimensional shingles the same thing?

Yes. Architectural, laminated and dimensional are different names for shingles built from two or more layers. Premium versions add more layers or thicker layers and show more depth.

Can I put new shingles over my old 3-tab roof?

Florida's existing building code requires removal down to the deck when the roof is water-soaked or deteriorated, has two or more existing coverings, or has blisters that are not repaired. Our guide on roofing over existing shingles in Florida explains when it is allowed.

Does a 3-tab shingle have a wind rating?

Any shingle sold for use in Florida must carry a wind test class on its wrapper. Many manufacturers rate their whole line Class F or Class H, per the Pacific Northwest National Laboratory's shingle guide. Check the product, not the style.

Sources

  1. Fine Homebuilding: Choosing New Asphalt Roof Shingles
  2. Owens Corning: Supreme 3-tab shingle product page
  3. Owens Corning: Oakridge laminated shingle product page
  4. Owens Corning: Discontinuation of Supreme shingles, plant service areas (January 15, 2025)
  5. Asphalt Magazine: Assessing high wind and hail performance of asphalt shingles (IBHS research)
  6. Pacific Northwest National Laboratory, Building America Solution Center: Asphalt Shingle Roofs
  7. Florida Building Code, Residential, 8th Edition (2023), Chapter 9, Roof Assemblies (via UpCodes)
  8. Atlas Roofing: Pinnacle Pristine general installation instructions
  9. Atlas Roofing: Pinnacle Pristine product data sheet, Southeast
  10. Atlas Roofing: Limited Shingle Warranty and warranty details chart (copy hosted by BuildSite)
  11. Citizens Property Insurance: Discounts

Get a straight answer on your shingles

Coastline will look at what is on your roof, photograph it, and tell you in writing what we see and what we would do.

Call (941) 896-7793 Text (941) 345-0072
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