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EPDM Commercial roof in Knoxville, TN

Commercial roofs that have a lot of equipment or penetrations on them will have a greater chance of leaking.

This commercial roof has approximately 50 HVAC units that are floating above the roof.  They are suspended by a rail system so that they do not require roof penetrations.  This makes it easier to prevent roof leaks and roof problems.

Unfortunately, this roof still has a leak issue that Litespeed Construction is resolving.

top of roof

  1. 1
    Possible leaks

    Cracks, holes, and weak points found in EPDM at corners and areas of penetration.


    This is black EPDM with a puncture hole, possible causing the roof leak. This is an areal of the EPDM that is damaged, another possible leak area. This is black EPDM at a corner that has a small tear.


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  2. 2
    another area for possible leak

    EPDM flashing tape is coming loose.This is a picture of black EPDM with a pen inserted in the lap, possible cause of the leak. Up close image of a lap in the EPDM showing it is unsealed.

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  3. 3
    wall needs resealed

    The old sealant is drily rotted and coming loose. Needs sealing with a good elastomer.


    This is a the EPDM at the wall that is no longer sealed. A pen can be inserted between the wall and EPDM.A close up image of the EPDM at the wall that is not sealed and tearing away from wall.


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Top of roof looking east

  1. 1
    Failing sealant

    This is an image of sealant that is failing.

    There are a total of about 18 of these.

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  2. 2
    old patch coming apart

    This is an patch on an black EPDM roof that is no longer sealed.

    This patch is really coming apart.  Complete failure is imminent.

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  3. 3
    failing cover strip


    This is a picture of black cover strip that is failing.

    This tape joint is going bad fast. If it isn’t letting water in now, then it won’t be long before it is. 

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  4. 4
    soft low spot in roof

    This section of the roof is very soft and feels like a trampoline when stepping on it. The roof protrudes downward about 5″ when stepping on it.This is the picture of the flat roof with a soft spot.

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  5. 5
    A.C. unit to low

    A.C. Unit should be off the roof as the rest of the roof units.This is a picture of an AC unit that is too low on the roof.

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Job Location

This area is an approximation and does not represent the exact location