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Installation instructions 

These step-by-step installation instructions will assist professional installers to cover a roof with a Firestone RubberCover™ EPDM System in accordance with the high standards specified by Firestone Building Products.

  1. Adhering the membrane
  2. Seaming
  3. Inside corners
  4. Outside corners/skylights
  5. Vents/penetrations
  6. Rainwater drainpipes
  7. Edge finishing
  8. Gutter

Adhering the membrane

Firestone RubberCover™ EPDM membranes must always be fully adhered to the substrate by applying RubberCover™ Bonding Adhesive both to the membrane and the substrate. Compatible substrates are wood, bitumen, PIR and PUR insulation, concrete, aluminum and zinc.
Firestone RubberCover™ EPDM membranes can be installed on both new and existing roofs. Firestone RubberCover™ EPDM can overlay virtually any old roof provided the roof decking is sound and the existing structure can carry the load of the new roofing system.

  1. Step 1
    • Position the membrane on the substrate.
    • Let it relax for 30 minutes.
    • Fold back half of the membrane.
  2. Step 2
    • Apply RubberCover™ Bonding Adhesive to the underside of the folded membrane.
    • Apply RubberCover™ Bonding Adhesive to the substrate to be covered.
  3. Step 3
    • Let both surfaces dry until adhesive no longer sticks to the finger when touched.
  4. Step 4
    • Roll the membrane onto the substrate.
    • Sweep with a soft brush.
    • Repeat these steps for the other half of the membrane.


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On site seaming

Firestone RubberCover™ EPDM membranes are available in large, seamless sheets so that most small residential roofs can be covered with one single sheet. If there is a need to splice two adjoining EPDM membranes on site, this can be performed with the use of RubberCover™ QuickPrime Plus and RubberCover™ QuickSeam Batten Cover Strip. Do not leave space between adjacent EPDM membranes (a slight overlap is allowed).
  1. Step 1
    • Apply RubberCover™ QuickPrime Plus to both sides of the joint to a total width of 20 cm.
    • Wait until the primer is dry to the touch.
  2. Step 2
    • Remove a piece of the release paper from the RubberCover™ QuickSeam Cover Strip.
    • Position it over the seam area treated with RubberCover™ QuickPrime Plus.
    • Pull the release paper at a 45° angle from under the RubberCover™ QuickSeam Cover Strip.
    • Adhere the strip to the membrane with a flat hand. Make sure no air bubbles are trapped inside.
  3. Step 3
    • Roll the strip with a hand roller, rolling at right angles over the seam.


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Inside corners

  1. Step 1
    • Adhere the membrane with RubberCover™ Bonding Adhesive to the upstand and on top of the roof edge.
  2. Step 2
    • Roll the excess membrane towards the corner and fold it into a pig-ear.
  3. Step 3
    • Fold the membrane flat onto the roof edge.
    • Finish the edge with roof trim (see edge finishing).
    • Trim off excess membrane.


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Outside corners/skylights

  1. Step 1
    • Cut the membrane from top to bottom up to the base at the external corner.
    • Adhere the membrane with RubberCover™ Bonding Adhesive to the upstand.
    • Apply RubberCover™ QuickPrime Plus across 10 cm on both sides and allow to dry.
  2. Step 2
    • Adhere a piece of RubberCover™ QuickSeam SA Flashing up to the base.
  3. Step 3
    • Apply a new layer of RubberCover™ QuickPrime Plus.
  4. Step 4
    • Remove the release paper from the RubberCover™ QuickSeam Corner Flashing and adhere it to the upstand.
  5. Step 5
    • Press on with a hand roller.


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Vents/penetrations

  1. Step 1
    • Apply RubberCover™ QuickPrime Plus to the membrane (min. 10 cm around vent) and to the flange of the vent.
    • Allow to dry.
  2. Step 2
    • Cut a hole in the RubberCover™ QuickSeam SA Flashing strip to the size of the vent.
  3. Step 3
    • Position the RubberCover™ QuickSeam SA Flashing over the vent.
    • Remove the release paper.
    • Press the Flashing into the primer with your hand.
  4. Step 4
    • Roll on with a hand roller.


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Rainwater drainpipes (RDP)

  1. Step 1
    • Place the RDP and press firmly in the slope angle.
    • Screw it tight to the substrate.
    • Apply RubberCover™ QuickPrime Plus to the top of the RDP and at least 10 cm around the RDP.
    • Allow to dry.
  2. Step 2
    • Adhere RubberCover™ QuickSeam SA Flashing over the RDP and onto the membrane.
      Note: The strip should overlap the edges of the RDP by at least 5 cm in all directions.
  3. Step 3
    • Roll on with hand roller.
  4. Step 4
    • Cut an opening in the RubberCover™ QuickSeam SA Flashing strip to the size of the RDP.


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Edge finishing

  1. Step 1
    • Place the roof trim on the roof edge.
  2. Step 2
    • Attach the roof trim using stainless steel screws and neoprene rings.


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Gutter

  1. Step 1
    • Apply RubberCover™ QuickPrime Plus to the gutter surface.
    • Allow to dry.
  2. Step 2
    • Adhere the RubberCover™ QuickSeam SA Flashing to the gutter.
    • Roll on with a hand roller.


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