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Mule-Hide Products

Fully Adhered TPO Single Ply Membrane

sides of the Cured Cover Tape must be caulked.

    • 3.11

      Drains, Expansion Joints, Pitch Pans

      • A.

        Roof Drains

B.

  • 1.

    Prepare the surface around each drain to prevent any distortion, tenting, or bridging of the membrane. A smooth transition shall be provided from the roof surface to the surface of the drain bowl/clamping ring.

  • 2.

    All existing roofing materials and metal flashings shall be removed.

  • 3.

    Manufacturer requires the application of one full tube of Water Cut-Off Mastic per drain applied to the drain bowl, under the membrane, where the clamping ring will be seated. This will provide a continuous seal between the membrane and the drain bowl.

  • 4.

    Do not run field seams through drains or sumps. If sheet layout causes a seam to fall in line with a drain, a target patch (minimum 36" x 36") shall be required.

Expansion Joints

Refer to Manufacturer's published Standard TPO Details for application methods for flashing expansion joints.

C.

Pitch Pans

Install and flash pitch pans as indicated in Manufacturer's published Standard Details. All pitch pans shall be filled with Thermoplastic Pourable Sealant.

3.12 Walkway Installation

Walkways should be provided in areas where routine rooftop maintenance occurs and in areas where regular rooftop traffic is expected.

  • A.

    Walkway Roll Installation

    • 1.

      Install Walkway Rolls over clean, dry surfaces.

    • 2.

      Layout areas where Walkway Rolls are to be installed with most of the material

being oriented so that it is placed between field seams with each adjacent and abutting pad gapped a minimum of 6"

3.

Hot air weld the perimeter of the properly positioned Walkway Roll. Check seams for any voids or inconsistencies that might prevent watertightness.

END OF SECTION

9

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