Step 6: Fit the Last Modules

fitting the last of the planted trays in place at the edge of the roof
Photo: Alison Rosa
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While the planted sedums can withstand some foot traffic, the best installation pattern is one in which installers can work themselves off the roof without walking too much on the plants. Then, from a ladder, they secure the edging to the sides of the modules with exterior-grade screws.
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    Tools List

    • 16-foot tape measure
      Tape measure
    • drill
      Drill/driver
    • concrete saw
      Concrete saw with masonry blade

    Shopping List

    1. EPDM

    2. Modules

    3. Engineered soil

    4. Sedums

    5. Aluminum edging