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  1. #1
    Jon mackay's Avatar
    Jon mackay Guest

    Default Membrane roof terminology

    There were several issues with these roof surfaces and I wanted to make sure my terminology was correct (I don't see many of these).

    The membrane was installed too tight and has stretched out from the parapet wall areas. Some standing water was present at a couple areas.

    Are there other issues that I'm missing?

    Thank you..

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  2. #2
    Kary Krismer's Avatar
    Kary Krismer Guest

    Default Re: Membrane roof terminology

    I'm not sure either of those are issues, but I'm surprised they didn't take the membrane up to underneath the caps, like perhaps they did in the first picture. It looks like they affixed it somehow to the side of the walls.

    Note: I've only seen one of these.


  3. #3
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
    Posts
    5,005

    Default Re: Membrane roof terminology

    Appears that they did not install a 'cant' strip at parapet wall floor juncture, thus the pulling effect and ripples.


  4. #4
    Kary Krismer's Avatar
    Kary Krismer Guest

    Default Re: Membrane roof terminology

    Quote Originally Posted by A.D. Miller View Post
    From that the one I saw was apparently PVC, since the seams were heat-based.


  5. #5
    Kary Krismer's Avatar
    Kary Krismer Guest

    Default Re: Membrane roof terminology

    Quote Originally Posted by A.D. Miller View Post
    Fully adhered or mchanically fastened?
    I would guess you'd call it mechanically fastened. What they did was took the caps off the top of the walls and ran the material up and over, then reinstalled the caps. It basically just floated over the top of the house, except where the drains and vents were located.


  6. #6
    Join Date
    Feb 2009
    Location
    Southern Vancouver Island
    Posts
    4,546

    Default Re: Membrane roof terminology

    EPDM - Google it for installation instructions.

    Picture that roof with 2 feet of melting snow on it. Not pretty. []

    John Kogel, RHI, BC HI Lic #47455
    www.allsafehome.ca

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