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FIXING THE EPDM RUBBER ROOF MEMBRANE

STEP 1 Fold back half of the EPDM Rubber Roof Membrane onto itself to expose the timber deck underneath. Apply the WBA Deck Adhesive evenly over the roof deck with the Roller supplied. With the adhesive still wet, roll the membrane back into position using a soft broom to ensure no air is trapped underneath the membrane and to ease out any creases. Repeat the process for the other half of the roof. STEP 2 Cut off any excess EPDM Rubber Roof Membrane using sharp...

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PREPARING THE ROOF

Only carry out this installation on a dry day where temperatures are above freezing! Included in your Rubber Roof Shed Kit: EPDM RUBBER ROOF MEMBRANE TUB OF WBA DECK ADHESIVE 3" MINI ROLLER GLOVES STEP 1 Open the box and familiarise yourself with the products supplied. Please also read this installation guide through in its entirety before starting. STEP 2 (If you are replacing an existing shed roof covering) Carefully remove the existing timber edge trims (fascias). Put them to one side if they are in good condition so you...

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PITCHED ROOF SLOPES ONTO THE FLAT ROOF

STEP 1 Carefully strip 3 courses of tiles from the adjoining roof and remove the roofing battens. Carefully lift the existing pitched roof underlay and apply contact adhesives to the back of the EPDM membrane and to the roof lay board. Once the contact adhesive has tacked off stick the EPDM membrane to the layboard. STEP 2 Lap the roof underlay over the top of the EPDM membrane and re-attach the tile battens. STEP 3 The top of the EPDM membrane must be at least 300...

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FITTING WALL TRIMS AND LEAD FLASHING

STEP 1 Before installing the EPDM membrane make sure the mortar is chased out of the joint to allow installation of the lead flashing or wall trim. Doing this first allows removal of the dust and protects the membrane from damage. Make sure all dust is cleaned out of the newly chased out mortar line, this can be done using an air blower or dusting brush STEP 2 Once the membrane has been bonded vertically up the wall using contact adhesive install the...

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COPING STONE DETAIL

STEP 1 With the coping stone removed, bond the membrane over the parapet wall leaving a 30 mm gap from the external wall face, seal the membrane edge onto a bead of water block mastic STEP 2 Bed the coping stones over the parapet wall using a tough sand and cement mortar mix of at least 3 and 1 ratio with added PVA adhesive for extra strength. Note: EPDM expands in hot weather and can crack weak mortar.

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USING TERMINATION BARS TO JOIN TO OTHER ROOFS

STEP 1 Overlap the FlexiProof EPDM membrane onto the adjoining flat roof system by 50 mm. STEP 2 Lift up the FlexiProof EPDM membrane to expose the adjoining roof system and apply a thick bead of water block mastic the length or the overlap. STEP 3 Flap the FlexiProof membrane onto the water block mastic and fit the termination bar over the top using self sealing screws to create a compression seal. STEP 4 Remove any excess membrane using a craft knife and seal off the...

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INSTALLING THE 68MM – 110MM ROOF DECK DRAINS

STEP 1 Cut down the roof drain leaving a 50 mm equal flange the whole way around, drop the roof drain into the preformed hole. STEP 2 Fix the roof drain down onto the roof deck using countersunk screws. Note: if you channel out a section underneath the roof drain in the timber deck the same thickness as the plastic of the drain flange this will allow the drain to sit flush with the roof surface prior to application of the flashing tape STEP...

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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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