Firestone RubberCover™ EPDM membranes Installers How to guide
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.
Position the membrane on the substrate.
Let it relax for 30 minutes.
Fold back half of the membrane.
Apply RubberCover™ Bonding Adhesive to the underside of the folded membrane.
Apply RubberCover™ Bonding Adhesive to the substrate to be covered.
Let both surfaces dry until adhesive no longer sticks to the finger when touched.
Roll the membrane onto the substrate.
Sweep with a soft brush.
Repeat these steps for the other half of the membrane.
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 Quick Prime Plus and Rubbercover Batten Cover Strip. Do not leave space between adjacent EPDM membranes (a slight overlap is allowed).
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.
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.
Roll the strip with a hand roller, rolling at right angles over the seam.
Adhere the membrane with RubberCover™ Bonding Adhesive to the upstand and on top of the roof edge.
Roll the excess membrane towards the corner and fold it into a pig-ear.
Fold the membrane flat onto the roof edge.
Finish the edge with roof trim.
Trim off excess membrane.
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.
Adhere a piece of RubberCover™ QuickSeam SA Flashing up to the base.
Apply a new layer of RubberCover™ QuickPrime Plus.
Remove the release paper from the RubberCover™ QuickSeam Corner Flashing and adhere it to the upstand.
Press on with a hand roller.