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INSTALLING A WALL DRAIN

STEP 1 Offer the wall drain into the pre-cut hole in your parapet wall and mark around using a white pencil or scribe STEP 2 Remove the wall drain and apply a thin bead of lap edge sealant behind the drain. Once the sealant is fully applied push the drain back into position to bed into the sealant STEP 3 Fix drain into position using either countersunk screws or clout nails. STEP 4 Mark 70 mm either side of the drain using a white pencil or scribe. STEP...

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PIPES THROUGH THE MEMBRANE – PIPE BOX POCKET

STEP 1 Ensure that the membrane around the pipe/penetration is clean, dry and free from dust or debris. Apply EPDM edge sealant where the pipe box pocket will be located. STEP 2 Clip the pipe box pocket together around the pipe/penetration and carefully lower onto the lap sealant. STEP 3 Carefully open the tub of EPDM Primer and thoroughly stir. Apply the EPDM primer using a paint brush to all internal surfaces of the pipe box pocket, membrane and pipe/ penetration. STEP 4 Wait approximately 5 minutes (depending...

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PIPES THROUGH THE MEMBRANE – PIPE FLASHING

STEP 1 Pull the pipe flashing firmly over the top of the pipe. Locate the ribbed band directly above the top of the pipe and cut along the top edge. Pull the pipe flashing down into its final position so that the underside tape sits on the membrane. Place the jubilee clip between the first and second band and tighten. Mark around the bottom of the pipe flashing using a pencil or scribe. STEP 2 Pull the pipe flashing up and apply EPDM primer...

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EXTERNAL CORNER PATCH

STEP 1 Ensure that the membrane around the external corner is clean, dry and free from dust or debris. Using a pencil, mark a small vertical line 60 mm from each edge of the cut membrane. STEP 2 Measure the distance between the 2 pencil lines being careful to measure accurately around the corner. Cut the 229 mm flashing tape to exactly this length and then shape the bottom external corners of the tape to give an aesthetically pleasing finish. STEP 3 Carefully open the...

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INTERNAL CORNER DETAIL

STEP 1 Form the membrane into a 45 degree (pig’s ear) shape where the membrane meets in the internal corner. STEP 2 Cut the pig’s ear vertically 80 mm out from the flat roof corner STEP 3 Cut a patch of 229 mm flashing tape 160 mm wide and offer over the pig’s ear and mark around with a scribe or pencil. STEP 4 Firstly check primer is fully tacked off. Fold the pig's ear back and push into the corner, then using a scrubbing pad...

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BUTT JOINING EPDM MEMBRANE WITH 152MM COVER STRIP

STEP 1 Draw a line 90 mm each side of the membrane join with a pencil or scribe using a straight edge as a guide. Keeping within the lines apply EPDM primer with a scrubbing pad. STEP 2 Once the primer is touch dry, carefully align the tape along the join and progressively remove the poly backing at a 45 degree angle and smooth into place by hand. STEP 3 Once the tape is fixed in place pressure must be applied with a seam...

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INSTALLING THE FLEXI PROOF EPDM MEMBRANE

STEP 1 Unroll the FlexiProof EPDM membrane over the substrate so that the sheet is in the desired position and allow to relax for 1 - 2 hours until the transportation creases have dropped out (Please Note: During colder months keeping the membrane stored at room temperature will help speed up the relaxation time also applying gentle heat to the membrane will help with sharp creases). Carefully open the tub of deck adhesive (or contact adhesive if required) and stir. Using a...

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ROOF SURFACE PREPARATION

The prepared roof surface must be clean, dry, free from dust, and contaminants (bitumen, oil etc). Do not attempt to install EPDM on a damp or wet surface as the trapped water may vaporize causing damage to the roof sub-structure. When applying banding adhesive to the roof deck in temperatures below 5 degrees Celsius, condensation can form on the top layer. If this happens, do not continue with the installation. Wait until weather conditions improve before attempting the installation again....

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