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  1. #1
    Join Date
    May 2011
    Location
    Midlands of SC
    Posts
    2

    Default Large washers for roof underlayment

    On a recent episode of TOH, they secured an underlayment (fiberboard?) for a flat rubber roof with some large (3-4" OD) galvanized steel washers. These washers had a small ID - maybe 1/2".

    What are these called, and where can I find them? Not having any luck with Google...

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,498

    Default Re: Large washers for roof underlayment

    If you google "nuts, bolts and washers" you'll get wholesale and retail sellers of such items. If they don't list the size you are looking for, maybe you can contact them and ask them. They should know. When you find out, let us know.
    I haven't seen that segment of TOH, but I would assume that these washers secure the underlayment to the roofdeck/rafters for better wind protection.

  3. #3
    Join Date
    Aug 2009
    Location
    Ladson,SC
    Posts
    192

    Default Re: Large washers for roof underlayment

    ou are looking for an Insulation Plate.
    Also called Plates - Stress Plate - Insulation Plate
    Used with roofing insulation.
    Check your local roofing supply warehouse.
    You can find this item at Best Materials.

  4. #4
    Join Date
    May 2011
    Location
    Midlands of SC
    Posts
    2

    Thumbs up Re: Large washers for roof underlayment

    Perfect! Exactly what I was looking for.

    thanks

  5. #5
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: Large washers for roof underlayment

    Also called *cap nails*
    http://www.fastenerusa.com/products_c316864.html
    They are available in round or square heads -- plastic or metal -- though for roofing you want the metal.
    Last edited by canuk; 05-15-2011 at 08:32 AM.
    "" an ounce of perception -- a pound of obscure "
    - Rush

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