MarathonTM Plus AR

IKO Marathon Plus AR is a time-tested, traditional 3-tab roofing shingle. Its weather-resistant design is based on a solid construction of durable fiberglass mat to help shield homes against the forces of nature. The classic design of IKO Marathon Plus AR will flatter any style of home. The algae-resistant granules embedded into these shingles will help control the black streaks caused by blue-green algae and keep them looking great for years to come.

montage of two houses and two couples
montage of house, shingles, and long grass

IKO Marathon Plus AR Color Options

It’s easy to find a 3-tab roofing shingle you’ll love. 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.

IKO Marathon Plus AR Gallery

Browse our gallery to see examples of how some of our IKO Marathon Plus AR 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.

Marathon Plus AR
Shingle Color:
Earthy, organic, rustic, laid‑back, casual.
Perfect Pairing:
Log, beige stone or brick (especially red) facings; brown trim.
Marathon Plus AR
Shingle Color:
Dual Black
Dramatic, stately, contemporary.
Perfect Pairing:
Grey or neutral siding or stone; white trim.

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

You want your new shingles to stay put. If the wind lifts them up, water can sneak in underneath and may cause a leaky roof. Our shingles have IKO FastLock® sealant strips along their bottom edges. When activated by the sun’s heat, these strips get extra-tacky and create a strong bond to ensure maximum protection against wind uplift, blow-off and water penetration.

3. UV-Resistant Granules

IKO’s exclusive, advanced color blending technology has created some of the most visually appealing color blends for the most popular colors. Whether you want your home to blend in with its natural surroundings or stand out in their neighborhood, you’re sure to find a very attractive option.

montage of winter roof, berries and birdhouse
montage of rock, winter road, and icicles

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.

montage of person holding small house, family and a stone wall
montage of a house, white 3-tab shingles, roofing manufacturing

Specifications & Standards


  • ASTM D3462

  • ASTM D3018

  • ASTM D7158 Class H

  • ASTM D3161 Class F

  • ASTM E108/UL 790 Class A

  • CSA A123.5 (In Canada)

  • Miami-Dade Approved³


  • Size

    39 3/8" x 13 1/4" (1000 mm x 336 mm)
  • Exposure

    5 5/8" (143 mm)
  • Coverage Per Package

    32.3 sq. ft. (3.0 m²)
  • Qty Per Pallet

    60 bundles
  • Shingles Per Square

  • Quantity Per Unit/Package

    21 shingles
  • Warranty Term

    Limited 25 year¹
  • Limited Wind Warranty

    60 mph (97 km/h)¹,²
  • Fire Resistance Rating

    Class A
  • Iron Clad Protection Period

    5 years¹

¹ See Limited Warranty at for complete terms, conditions, restrictions and application requirements. Shingles must be applied in accordance with application instructions and local building code requirements.
² In Canada the Wind Warranty for Standard Application is 70mph (112 km/h) and Limited Wind Warranty Upgrade is 80 mph (129 km/h)
³ Products with Miami Dade NOA, Florida Product Approval, and Texas Department of Insurance listings are available. Miami-Dade & Florida Building Code High-Velocity Hurricane Zone (HVAZ) approvals apply only to shingles available in the southeast US market. For more information please visit: our listings links page or contact IKO at: 1-888-IKO-ROOF (1-888-456-7663)

Note: All values shown are approximate. Product is 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.

MarathonTM Plus AR


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