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Roofing Shingles Granule Loss Test: Atlas Roofing – Best, IKO Worst

Shingle Comparison | Granule Loss: Atlas Roofing – Best, IKO Worst
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We compared following brands: IKO Roofing (The worst), Atlas Roofing (The best meaning least amount of granules were lost)
Pabco Roofing
Certanteed roofing
GAF building materials didnt participate but were invited
Owens Corning Roofing
Tamko Roofing
Malarky roofing products

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42 comments

  1. eag 8999

    Leave one or two of each shingle out in a non-climate controlled warehouse every night this winter, then every day have a UV heat/curing lamp turn on (with an outlet that has a timer plug-in so you don’t have to do any work).

    The idea is to have as great of a temperature change as possible as well as have show the UV resistance of the products mimicking real world usage. Do the test for at least a month, then see what their resistance to granule loss is with a brush test or boot test perhaps.

  2. Joe Shmoe

    I love that you guys are doing this. Owens Corning is my favorite brand. I try to install them on every roof I do for my customers. And I 100% agree that this is an important test for the same reasons you said. I think another good test would be the nailing field for strength and the tar strip. Thank you for taking the time to do this.

  3. IKO Roofing

    Dmitry, we want to personally thank you for conducting these tests. While hitch-hikers can be a concern relative to any shingle brand, IKO is exploring opportunities to minimize this concern, while making absolutely sure the asphalt is protected. Stay
    tuned for more updates.

    1. crunch9876

      todd baker well CertainTeed and Owens Corning are in my experience the best with maybe also malarkey on that list.

      GAF and OKO lose granules like crazy but your roof is what 16 years old? I mean it’s nearing the end of its useful life, you do realize that the manufacture warranty periods are crap right?
      Your at 16 years you should be thinking about a replacement around 20-25 years.

  4. Shawn Shaffer

    Thanks for taking the time to test these brands because other than re siding a house installing a new roof is one of a home owners biggest investments atlas needs to apply their dual tar sealant on the bottom side of their shingles and Owens corning shingles are second to none in my opinion how in the world is IKO still in business they must have numerous law suits against them and I’m amazed that roofing supply companies still carry them and even more surprising is I still notice contractors installing them

  5. Darren McMartin

    How does this prove anything. There are loose granules in the bundles already. All that’s been determined is what manufacturer doesn’t sweep the loose granules off prior to packaging. Also, the company with the least granules may have under applied the granules

    1. Travis Edwards

      On its on its not, but when added to many other tests you start getting a very good look at who makes quality and who does not. Atlas for instance keeps coming out on top in test after test, as well as real world use. So in that regard this test matches up perfectly

    2. JealousElephant

      I’m inclined to agree that this is a VERY inaccurate and thereby misleading method of determining granule loss. There are manufacturers (GAF) who openly state they “over-press” their shingles with granules during production which results in a lot of loose granules during installation. Even Mike Holmes stated this many times throughout his shows when discussing roofing products. Also, cleaning gutters out after any shingle installation is common practice so it doesn’t matter how much goes into the gutters during installation.

    3. Darren McMartin

      Roofing Insights it would be interesting to see how much loose granules are in the package prior to your test. I remember talking to my iko sales rep many years ago about the granules that were loose in the package. He said they didn’t want to remove too much of them because they might unintentionally remove too much before the shingles cool. But I have a feeling when u did your test that the iko bundle had been abused and moved around already which invalidates the results and makes it confusing for contractors who just want to buy a good shingle. I would suggest you look into what the shingle manufacturers use for their tests and perform your own independent test. The applicable standard is the “scrub test” ASTM D4977

    4. Roofing Insights

      +Darren McMartin it’s just one thing we consider, we look at everything. Why would anyone “over applied” granules to make install process extremely slippery and clog gutters with metals from granules? All we do is show is difference between products and let the viewer make educating decision.

  6. Istandalone

    We just our roof done two weeks ago, and every time it rains our sidewalk, porch, patio is full of granules. ?‍♀️a frustrating mess. Timberland Co. Hhmmm. Is that normal, will this stop.

  7. Joe W Indiana

    Cheap brands to avoid…Tamko, IKO, GAF, malarkey. Brands that make good shingles… Certainteed, atlas (but only the high-end atlas) and Owens Corning. I am a 20 year pro roofer. And I only install Owens corning Tru def. Durations when it comes to a dimensional shingle.

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