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  1. #1
    King Pin
    Join Date
    Feb 2014
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    GD made a switch from EPDM to TPO sometime in 2015. The only way you can tell for sure is to call them with your VIN and they can look it up.

    Jim

  2. #2
    Site Sponsor Dave and Monica's Avatar
    Join Date
    Nov 2013
    Location
    Gore Bay, Ontario
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    You can take the inside trim off on a roof vent and check the roofing material there. If its black on the backside, it's EPDM.

    Dave

    Sent from my SM-G903W using Tapatalk
    Dave and Monica - Gore Bay, Ontario
    Vitus the Hungarian Vizsla
    2014 Reflection 337 RLS #129
    2008 F250 V10 CC Lariat RWD

  3. #3
    Commercial Member huntr70's Avatar
    Join Date
    Sep 2013
    Location
    PA
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    All GD units are currently using TPO.

    All have been since mid 2015.
    Steve- Inventory Manager at Tom Schaeffer's RV, Shoemakersville, PA www.tomschaeffers.com
    [email protected]
    2011 RAM 3500 SRW Outdoorsman Edition 4X4, 6.7 Cummins--TWEAKED!
    2021 Reflection 310RLS

  4. #4
    Big Traveler
    Join Date
    Aug 2016
    Location
    Michigan
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    Dave,

    This TPO looks like its black on the back side. Not sure of the brand used by GD.

    http://www.gaf.com/Commercial_Roofin...M_Brochure.pdf

  5. #5
    Site Sponsor Cate&Rob's Avatar
    Join Date
    Jul 2014
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    This article says that EPDM is dull and sheds. TPO is shiny and does not.
    https://rvingwithmarkpolk.com/2012/0...but-what-type/

    Rob
    Cate & Rob
    2015 Reflection 303RLS

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