3-tab Shingles: Years of Manufacturing and a Testament to Quality Workmanship

IKO Marathon Plus AR shingles are time-tested, traditional 3-tab shingles. Offering excellent reliability and supported by a proven track record, these asphalt roofing shingles are at the top of their class in terms of performance and value. IKO Marathon Plus AR shingles feature blue-green algae resistant granules and a 25-year Limited Warranty.

IKO Marathon Plus AR Color Options

It’s easy to find a 3-tab roofing shingle you’ll love, thanks to the huge selection of color blends IKO Marathon Plus AR shingles come in. IKO’s manufacturing plants throughout North America use the same advanced, computer-controlled technology to ensure that all its asphalt roofing shingles are consistent in color, size, shape and quality. 

Please make your final color selection from several full size shingles and view a sample of the product installed on a home. Not all colors are available in all markets.

Aged Redwood
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Charcoal Grey
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Dual Black
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Dual Brown
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Dual Grey
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Earthtone Cedar
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Harvard Slate
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Vintage Green
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IKO Marathon Plus AR Gallery

Browse our gallery to see examples of how some of our IKO Marathon Plus AR color options look on actual homes. We think you’ll see how easy and affordable it can be to take your new roof back to beautiful basics too.

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Engineered to Protect Your Home, Family and Other Valuables Against the Elements

Our 3-tab roofing shingles are built to last, thanks to their solid construction, flexible fiberglass mat and weather-resistant design. And, because they come in a metric size that’s larger than many comparable shingles in their class, they’re faster and easier to install.

1. Built-In Algae Resistance

We embed special algae resistant granules into IKO Marathon Plus AR shingles to help inhibit the growth of blue-green algae that can cause unattractive black stains, streaks and discoloration.

2. An Exceptional Bonding Experience

IKO Fastlock™ sealant strips run across the back of the shingles to help prevent wind-driv­en rain from getting underneath them. When activated by the sun’s heat, the sealant strips get extra-tacky and create a strong bond.

3. UV-Resistant Granules

The sun’s ultraviolet rays have the same potential as blue-green algae to cause discoloration. IKO Marathon Plus AR shingles have granules embedded in their surface to help prevent this.

Did You Know?

Many homeowners choose our traditional 3-tab shingles to replace the roof on other types of out-buildings, from tool sheds and gazebos to dog houses! Easy to install and  economically priced, they’re available in several attractive color blends.

Count on IKO for a comprehensive line of quality accessory roofing products – ice and water protectors, synthetic underlayments, ridge cap shingles, starter strips, adhesives and more – to support the installation of almost any roofing project.

Specifications & Standards

ASTM D3462
ASTM D3018
ASTM D3161 Class F
ASTM E108 Class A
ASTM D7158 Class H
CSA A123.5
Miami-Dade Approved²
1000 mm x 336 mm (39 3/8" x 13 1/4")
143 mm (5 5/8")
Coverage Per Package
3.0 m² (32.3 sq. ft.)
Qty Per Pallet
60 bundles
Shingles Per Square
Quantity Per Unit/Package
21 shingles
Warranty Term
Limited 25 year¹
Limited Wind Warranty Upgrade
97 km/h / 60 mph¹
Fire Resistance Rating
Class A
Iron Clad Protection Period
5 years¹

¹ See Limited Warranty at IKO.com for complete terms, conditions, restrictions, and application requirements. Shingles must be applied in accordance with application instructions and local building code requirements.

Note: All values shown are approximate. Products developed with reference to these Standards.
IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. However due to manufacturing variances, the limitations of your monitor resolution, and the variation in natural exterior lighting, actual colors may vary from the images you see. To ensure complete satisfaction, please make your final color selection from several full size shingles and view a sample of the product installed on a home.
Algae Resistant – this article contains an algae-resistant granule that helps inhibit discoloration caused by blue-green algae.

IKO Marathon Plus AR Traditional Shingles

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IKO manufactures products for specific areas in North America.
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NOTE: Not all products featured will be available in your area.