How to Apply EPDM 9 x 9 Outside Corner (White)

Installation Techniques

  1. Clean deck and vertical surfaces with Weathered Membrane Cleaner.
  2. Prime area and wait for flash-off.
  3. Cut a 7” x 9” (22.86 cm x 22.86 cm) piece of Peel & Stick Uncured Flashing and round two of the corners.
  4. Fold flashing in half and cut as shown.
  5. Loosen release liner.
  6. Remove clear poly and fold flashing in half with rounded part turned up.
  7. Center flashing on corner, apply to vertical surface, remove release liner, and press firmly.
  8. Crease flashing tightly into angle change.
  9. Work flashing down onto deck membrane.
  10. Roll with hand roller.
  11. Apply 5/8” (1.58 cm) bead of Lap Sealant to edges at 22’ (6.7 m) per tube and feather using tool provided with sealant.

In cold temperatures, use of a heat gun is required when working with all uncured EPDM flashings.