WPM 002 Australian version

UNDERTILE UNDERTILE WATERPROOFING WATERPROOFING

MEMBRANESMEMBRANES

SURFACE PREPARATION SURFACE PREPARATION

FOR FOR

UNDERTILE MEMBRANESUNDERTILE MEMBRANES

Surface PreparationSurface Preparation

Surface Preparation for Wet Area WaterproofingSurface Preparation for Wet Area Waterproofing

Surface must be structurally soundSurface must be structurally soundCracking or movement of the substrate after a membrane has Cracking or movement of the substrate after a membrane has been installed is likely to cause the membrane to fracture.been installed is likely to cause the membrane to fracture.

Treat cracks and movement jointsTreat cracks and movement jointsCracks, construction joints, expansion joints and other mobile Cracks, construction joints, expansion joints and other mobile joints should be treated in accordance with the membrane joints should be treated in accordance with the membrane manufacturers recommendations.manufacturers recommendations.

Clean and free from any contaminant materialsClean and free from any contaminant materialsA membranes bond will fail at its weakest point so if applied over A membranes bond will fail at its weakest point so if applied over dust, loose materials or poorly bonded contaminants it will fail dust, loose materials or poorly bonded contaminants it will fail prematurely.prematurely.

Repair any holes/voids in the substrateRepair any holes/voids in the substrateA uniform thickness membrane is very difficult to achieve over A uniform thickness membrane is very difficult to achieve over holes/voids.holes/voids.

Remove any protrusions and sharp edgesRemove any protrusions and sharp edgesA uniform thickness membrane is very difficult to achieve over A uniform thickness membrane is very difficult to achieve over protrusions or sharp edges.protrusions or sharp edges.


Surface Preparation for Wet Area WaterproofingSurface Preparation for Wet Area Waterproofing

Concrete should be aged for 28 days and screeds Concrete should be aged for 28 days and screeds should be aged for 7 daysshould be aged for 7 days

Cementitious surfaces can develop plastic shrinkage Cementitious surfaces can develop plastic shrinkage cracks during initial curing which must be totally formed cracks during initial curing which must be totally formed before the membrane is applied. Time must also be before the membrane is applied. Time must also be allowed for the development of efflorescence which must allowed for the development of efflorescence which must be removed before the membrane application. be removed before the membrane application.

Ensure substrate is dry (5.5% moistureEnsure substrate is dry (5.5% moisture or less or less))

High substrate moisture content will form blisters in the High substrate moisture content will form blisters in the membrane during curing.membrane during curing.

Seal wet or freshly laid concrete with Seal wet or freshly laid concrete with ARDEX WPM ARDEX WPM 300300Allow to cure overnight. Provides a concrete curing Allow to cure overnight. Provides a concrete curing membrane and barrier coat.membrane and barrier coat.


Priming for Wet Area WaterproofingPriming for Wet Area Waterproofing

Porous surfaces are primed to consolidate residual dust and reduce the porosity of the substrate to

avoid excessively fast interface drying and blistering of the membrane

Wet or fresh concrete, PVC and metal are primed to provide a barrier between the substrate and the

membrane

All cementitious substrateAll cementitious substratess should be primed with ARDEX should be primed with ARDEX WPM 265 Water Based Primer at a rate of 6mWPM 265 Water Based Primer at a rate of 6m22/L/L

Highly porous substrates may require 2 coatsHighly porous substrates may require 2 coats PVC should be primed with pink plumbers primerPVC should be primed with pink plumbers primer Metal surfaces should be primed with a two pack epoxy Metal surfaces should be primed with a two pack epoxy

zinc phosphate primer zinc phosphate primer If moisture content is too high or concrete is freshly laid, If moisture content is too high or concrete is freshly laid,

use ARDEX WPM 300 HydrEpoxy as a barrier coatinguse ARDEX WPM 300 HydrEpoxy as a barrier coating

Allow primer to dry prior to waterproofingAllow primer to dry prior to waterproofing

STANDARDS STANDARDS

AND AND

REGULATIONSREGULATIONS

Standards and RegulationsStandards and Regulations

Internal Wet AreasInternal Wet Areas

The standard minimum performance requirements for The standard minimum performance requirements for the waterproofing buildings in Australia are set out in:the waterproofing buildings in Australia are set out in:

Building Code of Australia 1996Building Code of Australia 1996

including all updatesincluding all updates

Australian/New Zealand StandardsAustralian/New Zealand Standards

AS 3740: 2004AS 3740: 2004

Waterproofing of Wet Areas within Residential Waterproofing of Wet Areas within Residential BuildingsBuildings

AS/NZS 4858: 2004AS/NZS 4858: 2004

Wet Area MembranesWet Area Membranes

Local State Legislation may also apply such as BSA in Local State Legislation may also apply such as BSA in Queensland and Planning SA in South AustraliaQueensland and Planning SA in South Australia


The Building Code of Australia 2007 (1996)The Building Code of Australia 2007 (1996)

The requirements of the Building Code of Australia: The requirements of the Building Code of Australia: 2007 (BCA) is currently similar to AS 3740: 20042007 (BCA) is currently similar to AS 3740: 2004

Volume 1 covering class 1 & 10 buildings Volume 1 covering class 1 & 10 buildings (commercial) requires waterproofing in accordance (commercial) requires waterproofing in accordance with AS/NZ 3740with AS/NZ 3740

Volume 2 covering class 2 - 9 buildings (domestic) Volume 2 covering class 2 - 9 buildings (domestic) details the areas to be waterproofed in Section 3.8 details the areas to be waterproofed in Section 3.8 and are similar to AS 3740: 2004and are similar to AS 3740: 2004

Volume 2 defines the membrane type in accordance Volume 2 defines the membrane type in accordance with AS/NZS 4858: 2004with AS/NZS 4858: 2004

At present there is much duplication between the At present there is much duplication between the BCA and AS 3740: 2004 and AS/NZS 4858: 2004 but BCA and AS 3740: 2004 and AS/NZS 4858: 2004 but this is expected to change.this is expected to change.


AS 3740: 2004 – waterproofing of wet areas AS 3740: 2004 – waterproofing of wet areas within residential buildingswithin residential buildings

Governs the required application of the waterproof Governs the required application of the waterproof membrane including the minimum surfaces within an membrane including the minimum surfaces within an internal wet area to be waterproofed and the internal wet area to be waterproofed and the

surfaces surfaces that must be water resistant.that must be water resistant.


Definitions AS 3740: 2004 and BCADefinitions AS 3740: 2004 and BCA

Waterproof - WPWaterproof - WP

Does not allow water to penetrate through the Does not allow water to penetrate through the film/layerfilm/layer

Water Resistant - WRWater Resistant - WR

Restricts moisture movement. Will not degrade Restricts moisture movement. Will not degrade under moist conditionsunder moist conditions


Principal changes in the 2004 issue of AS3740: Principal changes in the 2004 issue of AS3740: 20042004

Wall/floor junction upturns in showers now 150mm cf Wall/floor junction upturns in showers now 150mm cf 100mm100mm

Complete wet area floor with drainage outlet to be Complete wet area floor with drainage outlet to be membraned for Class 1 buildings (BCA)membraned for Class 1 buildings (BCA)

Complete wet area timber floors to be membranedComplete wet area timber floors to be membraned Water stop angle to step-down or 1,500 mm from Water stop angle to step-down or 1,500 mm from

unenclosed shower head required to underside of tile unenclosed shower head required to underside of tile with silicone tile joint over anglewith silicone tile joint over angle

Water stop required on tap & other intrusions.Water stop required on tap & other intrusions. Frameless shower screens are deemed to be Frameless shower screens are deemed to be

unenclosed showersunenclosed showers Differing joint details required for different Differing joint details required for different

membranes controlled by the membranesmembranes controlled by the membranes classification under AS/NZ 4858classification under AS/NZ 4858


AS/NZS 4858: 2004 – wet area membranesAS/NZS 4858: 2004 – wet area membranes Provides the benchmark minimum performance Provides the benchmark minimum performance

requirements necessary of a waterproof membrane requirements necessary of a waterproof membrane in regard to flexibility and durability.in regard to flexibility and durability.

Classifies membranes into 3 categories based on Classifies membranes into 3 categories based on flexibility of the membrane:flexibility of the membrane:

Class 1Class 1 - Low flexibility - Low flexibilityClass 2Class 2 - Medium Flexibility - Medium FlexibilityClass 3Class 3 - High Flexibility - High Flexibility

Defines the jointing detail necessary for each Defines the jointing detail necessary for each category of membrane.category of membrane.


Australian Standard AS/NZS 4858: 2004Australian Standard AS/NZS 4858: 2004Joint Details for wet et Area MembranesJoint Details for wet et Area Membranes

Low Flexibility75 mm

Medium Flexibility35 mm

High Flexibility12 mm

Ardex Undertile Membranes are all Class 3 Membranes


CAUTIONCAUTION Always remember the Standards & Regulations Always remember the Standards & Regulations

provide MINIMUM requirements onlyprovide MINIMUM requirements only

The Standards & Regulations have one overriding The Standards & Regulations have one overriding clause:clause:

““the waterproofing must prevent the passage of the waterproofing must prevent the passage of water between rooms”water between rooms”

Even if a contractor installs a membrane in what he Even if a contractor installs a membrane in what he believes to be in strict accordance with all standards believes to be in strict accordance with all standards & regulations and, if leaks occur, the contractor has & regulations and, if leaks occur, the contractor has NOT installed the membrane in accordance with the NOT installed the membrane in accordance with the Standards & Regulations.Standards & Regulations.

To ensure the protection of leaks membranes should To ensure the protection of leaks membranes should be installed in excess of the requirements of the be installed in excess of the requirements of the Standards & Regulations, e.g. Ardex recommend Standards & Regulations, e.g. Ardex recommend water resistant areas should be waterproof areas.water resistant areas should be waterproof areas.

MEMBRANE PLACEMENTMEMBRANE PLACEMENT

Membrane PlacementMembrane Placement

AS 3740: 2004 states that membranes may be placed AS 3740: 2004 states that membranes may be placed under or over the tile bed/screed.under or over the tile bed/screed.

Under bed/screed:Under bed/screed: Bed/screed always remains saturated breeding mould, Bed/screed always remains saturated breeding mould,

fungi & odours.fungi & odours. Membrane is not to falls and therefore ponding will Membrane is not to falls and therefore ponding will

occur.occur. Logistical benefits for multiple trade installation, i.e. Logistical benefits for multiple trade installation, i.e.

waterproofer & tiler.waterproofer & tiler.

Over bed/screed:Over bed/screed: Ardex Preferred SystemArdex Preferred System Bed/screed remains dry.Bed/screed remains dry. Membrane is laid to falls and is less prone to water Membrane is laid to falls and is less prone to water

ponding on the membrane.ponding on the membrane. Adhesive must be compatible with membrane.Adhesive must be compatible with membrane.


Substrate PrimingSubstrate Priming Priming is necessary on all substrates to:Priming is necessary on all substrates to:

• Consolidate the small amounts of residual surface dustConsolidate the small amounts of residual surface dust• Reduce & control the porosity of the substrate to Reduce & control the porosity of the substrate to

restrict rapid water transfer from the membrane to the restrict rapid water transfer from the membrane to the substrate while allowing sufficient absorption to substrate while allowing sufficient absorption to achieve a sound bond.achieve a sound bond.

• Allow primer to dry before membrane applicationAllow primer to dry before membrane application

ARDEX WPM 300 HydrEpoxy Barrier Coating is used ARDEX WPM 300 HydrEpoxy Barrier Coating is used over:over:

• Wet substrates free from surface waterWet substrates free from surface water• Fresh ‘green’ render, screeds or concreteFresh ‘green’ render, screeds or concrete• Acts as a highly efficient concrete curing membraneActs as a highly efficient concrete curing membrane• Apply first coat as surface temperature is declining.Apply first coat as surface temperature is declining.


Moisture in SubstrateMoisture in Substrate Moisture contained in the matrix of a substrate Moisture contained in the matrix of a substrate

when a membrane is applied will expand as it when a membrane is applied will expand as it vaporises when the substrate temperature rises.vaporises when the substrate temperature rises.

If there is a risk of significant moisture in the If there is a risk of significant moisture in the substrate, prime with ARDEX WPM 300 HydrEpoxy.substrate, prime with ARDEX WPM 300 HydrEpoxy.

No membrane will withstand the pressures from No membrane will withstand the pressures from vaporising moisture until it cures. Vaporising vaporising moisture until it cures. Vaporising moisture will cause blistering of the membrane.moisture will cause blistering of the membrane.

To avoid blistering, application of a membrane, at To avoid blistering, application of a membrane, at least the first coat, should be applied while the least the first coat, should be applied while the surface temperature is declining.surface temperature is declining.

This problem doesn’t apply only to surface water but This problem doesn’t apply only to surface water but hidden moisture within the matrix of the substrate.hidden moisture within the matrix of the substrate.


ReinforcementReinforcement Even though some membranes have internal Even though some membranes have internal

reinforcement it is recommended that all corners, reinforcement it is recommended that all corners, cracks and other movement joints are externally cracks and other movement joints are externally reinforced. reinforced.

External reinforcement ensures full dry film External reinforcement ensures full dry film thickness is applied across movement joints and thickness is applied across movement joints and provides added strength properties.provides added strength properties.

Woven 40 gsm polyester fabric is recommended. Woven 40 gsm polyester fabric is recommended. Fibreglass is not a recommended reinforcing Fibreglass is not a recommended reinforcing material because:material because:

• Fibreglass can ‘wick’ allowing water penetration into Fibreglass can ‘wick’ allowing water penetration into the membrane via osmosis.the membrane via osmosis.

• Fibreglass has good longitudinal strength but very Fibreglass has good longitudinal strength but very poor transverse strength – polyester has good tensile poor transverse strength – polyester has good tensile and transverse strengths.and transverse strengths.


WARNINGWARNING External reinforcing MUST External reinforcing MUST

be TOTALLY wetted out be TOTALLY wetted out with no air pockets or with no air pockets or creases.creases.

Wetting out by rolling with Wetting out by rolling with a normal paint roller a normal paint roller entraps air and does not entraps air and does not wet out membrane.wet out membrane.

A fluted metal roller A fluted metal roller ensures full wetting of the ensures full wetting of the reinforcement.reinforcement.


Membrane ApplicationMembrane Application Membrane thickness is critical.Membrane thickness is critical. The manufacturers thickness recommendations are The manufacturers thickness recommendations are

not arbitrarily fixed. They are the thickness of not arbitrarily fixed. They are the thickness of product required to achieve the required water product required to achieve the required water vapour transmission rate to perform as a vapour vapour transmission rate to perform as a vapour barrier.barrier.

Membrane thickness must be uniform over the Membrane thickness must be uniform over the entire surface. One low thickness spot results in the entire surface. One low thickness spot results in the membrane being less effective as a vapour barrier.membrane being less effective as a vapour barrier.

Pinholes caused by vigorous mixing and/or Pinholes caused by vigorous mixing and/or application will result in the membrane being application will result in the membrane being ineffective.ineffective.

Good surface preparation is critical for a good Good surface preparation is critical for a good result.result.


Critical Aspects of Critical Aspects of Reinforcement InstallationReinforcement InstallationInadequate dry film thickness of Inadequate dry film thickness of membrane is a common cause of membrane is a common cause of failure.failure.

This problem can be avoided by This problem can be avoided by periodically checking the wet film periodically checking the wet film thickness using a wet film gauge.thickness using a wet film gauge.

Wet film thickness = dry film Wet film thickness = dry film thickness x volume solids of the thickness x volume solids of the membrane, i.e. to achieve 500membrane, i.e. to achieve 500µm µm DFT with a 50% VS membrane DFT with a 50% VS membrane requires 500 x 0.5 = 1000 µm requires 500 x 0.5 = 1000 µm

0.5 mm

1.1 mm


Effects of Weather ConditionsEffects of Weather ConditionsHot WeatherHot Weather

• No membrane should be installed while surface No membrane should be installed while surface temperature at or above 35temperature at or above 35°°CC

• Higher surface temperatures may lead to Higher surface temperatures may lead to blistering of the membraneblistering of the membrane

• Membrane dries faster at higher temperatures Membrane dries faster at higher temperatures making reinforcement installation & maintaining making reinforcement installation & maintaining wet edge more difficultwet edge more difficult

Cold WeatherCold Weather• Membranes will not cure below 10Membranes will not cure below 10°C°C• Slower drying will result in colder conditionsSlower drying will result in colder conditions• Surface condensation can cause problems with Surface condensation can cause problems with

membrane bondingmembrane bonding


Use of Adhesives Over Waterproofing Use of Adhesives Over Waterproofing MembranesMembranes

Tile Adhesives used over waterproof membranes Tile Adhesives used over waterproof membranes should be of a type that react with water during should be of a type that react with water during curing. ARDEX D2 adhesive is an exception.curing. ARDEX D2 adhesive is an exception.

Mastic adhesives rely on water evaporation to dry Mastic adhesives rely on water evaporation to dry and when placed between an impermeable and when placed between an impermeable membrane and a low permeability tile will take membrane and a low permeability tile will take excessive times to dry.excessive times to dry.

Cement based adhesives such as Abaflex, MPP, X56 Cement based adhesives such as Abaflex, MPP, X56 and others will consume the water by reaction and and others will consume the water by reaction and cure normally in sealed conditions.cure normally in sealed conditions.

HEALTH AND SAFETYHEALTH AND SAFETY

Health and SafetyHealth and Safety

ARDEX WPM 001ARDEX WPM 001 (Superflex Premixed) is non-toxic, (Superflex Premixed) is non-toxic, non-flammable and low odournon-flammable and low odour

ARDEXWPM 002ARDEXWPM 002 (Superflex Two Part) Part A Liquid is (Superflex Two Part) Part A Liquid is non-toxic, non-flammable and low odournon-toxic, non-flammable and low odour

ARDEX WPM 002ARDEX WPM 002 (Superflex Two Part) Part B Powder, (Superflex Two Part) Part B Powder, is non-flammable and low odour, however it is hazardous is non-flammable and low odour, however it is hazardous as it contains cement. Appropriate safety precautions as it contains cement. Appropriate safety precautions should be takenshould be taken

ARDEX WPM 390ARDEX WPM 390 is non-toxic and non-flammableis non-toxic and non-flammable ARDEX WPM 265ARDEX WPM 265 Water Based Primer is non-toxic and Water Based Primer is non-toxic and

non-flammablenon-flammable ARDEX WPM 300ARDEX WPM 300 Part A is non-flammable, non-toxic Part A is non-flammable, non-toxic

and low odour.and low odour. ARDEX WPM300ARDEX WPM300 Part B is non-flammable, non-toxic Part B is non-flammable, non-toxic

and low odour, however extended exposure can produce and low odour, however extended exposure can produce skin sensitisation. Avoid skin contact.skin sensitisation. Avoid skin contact.

INTERNAL WET AREASINTERNAL WET AREASAPPLICATION & DETAILINGAPPLICATION & DETAILING

Internal Wet Area Membrane Internal Wet Area Membrane DetailingDetailing

AS/NZS 4858: 2004 Classification of MembranesAS/NZS 4858: 2004 Classification of Membranes% Elongation% Elongation

Class 1 - <60%Class 1 - <60% Class 2 - 60 to 299% Class 2 - 60 to 299% Class 3 - Class 3 - 300%300%

Joint Detailing


Typical layout of bathroom with shower hobTypical layout of bathroom with shower hob


Typical layout of bathroom with hobless showerTypical layout of bathroom with hobless shower


Hobless showerHobless shower


Typical layout of bathroom with step-down showerTypical layout of bathroom with step-down shower


Step down detailStep down detail


Australian Standard 3740 does not account for Australian Standard 3740 does not account for shower heads on flexible hoses which can extend up shower heads on flexible hoses which can extend up to 800 mm from the shower head fitting.to 800 mm from the shower head fitting.

Ardex recommends that the radius to be Ardex recommends that the radius to be waterproofed extends at least to a 1500 mm from waterproofed extends at least to a 1500 mm from the radius of the extended hose, i.e. from the extent the radius of the extended hose, i.e. from the extent the shower head can reach.the shower head can reach.

Ardex, in fact, recommends that the full bathroom Ardex, in fact, recommends that the full bathroom floor be waterproofed regardless of substrate.floor be waterproofed regardless of substrate.


Ardex recommends all water resistant areas Ardex recommends all water resistant areas should be waterproofedshould be waterproofed


Frameless showers are deemed to be open showersFrameless showers are deemed to be open showers

Shower screens must be installed on inside (shower Shower screens must be installed on inside (shower side) of hob and within boundary of water stopside) of hob and within boundary of water stop

Whole of floor waterproofing is required where:Whole of floor waterproofing is required where:• There is a floor waste installedThere is a floor waste installed• A room contains a shower recess and the floor is A room contains a shower recess and the floor is

constructed of timber.constructed of timber.


Waste Outlet to Standard Puddle FlangeWaste Outlet to Standard Puddle Flange

Membrane must be applied to lap over puddle Membrane must be applied to lap over puddle flange.flange.

Membrane must be reinforced across lap to Membrane must be reinforced across lap to accommodate movement between flange and accommodate movement between flange and cement screed.cement screed.

Cover plate is Cover plate is designed to fit designed to fit neatly into puddle neatly into puddle flange which is free flange which is free from membrane.from membrane.

Riser top surface Riser top surface must be level with must be level with floor surface & floor surface & holding screws holding screws countersunk.countersunk.


Critical Aspects of Wet Area WaterproofingCritical Aspects of Wet Area Waterproofing Do not use timber hoDo not use timber hobbss Hobs at shower screen entry doors Hobs at shower screen entry doors should slope inwards should slope inwards Shower screens fixed to inside edgeShower screens fixed to inside edge Ensure outlet pipes are fixed securely and that the waste Ensure outlet pipes are fixed securely and that the waste

or drainage flanges are recessed into flooror drainage flanges are recessed into floor Screeds should be improved with Abacrete additiveScreeds should be improved with Abacrete additive Ensure that falls to the waste are min 1:60 in shower Ensure that falls to the waste are min 1:60 in shower

recessrecess,, min 1:80 in bathroom min 1:80 in bathroom Ensure that sheet joints,Ensure that sheet joints, are treated with are treated with a a neutral curneutral curee

silicone sealantsilicone sealant with Class 3 membranes with Class 3 membranes Apply a bead of neutral cure silicone sealantApply a bead of neutral cure silicone sealant to all to all

horizontal and vertical corners also to the junction of the horizontal and vertical corners also to the junction of the hob or angle and wallshob or angle and walls

Treat nail/screw holes with neutral cure silicone sealant.Treat nail/screw holes with neutral cure silicone sealant. Seal the perimeters of taps/shower outlets and waste Seal the perimeters of taps/shower outlets and waste

outlets with neutral cure silicone sealantoutlets with neutral cure silicone sealant


Critical Aspects of Wet Area WaterproofingCritical Aspects of Wet Area Waterproofing Ensure all surfaces to beEnsure all surfaces to be waterproofed are waterproofed are primed primed Apply the membrane to the entire shower recess floor Apply the membrane to the entire shower recess floor

and down into drainage flangeand down into drainage flange Apply the membrane over the hob, the entire floor, and Apply the membrane over the hob, the entire floor, and

1800mm up the walls or to the height of the shower rose 1800mm up the walls or to the height of the shower rose within the shower recesswithin the shower recess

Reinforce corners ,coving areas & drainage flange with Reinforce corners ,coving areas & drainage flange with polyester cloth between the two coatspolyester cloth between the two coats

Ensure reinforcing mat is fully wetted out and free from Ensure reinforcing mat is fully wetted out and free from creases &/or air pocketscreases &/or air pockets

Ensure specified dry film thickness is achieved with Ensure specified dry film thickness is achieved with second membrane coatsecond membrane coat

Always protect applied membrane from mechanical Always protect applied membrane from mechanical damage, particularly during tiling operationsdamage, particularly during tiling operations

EXTERNAL WET AREASEXTERNAL WET AREASAPPLICATION & DETAILINGAPPLICATION & DETAILING

External Wet Area Membrane External Wet Area Membrane DetailingDetailing

Critical Area ChecklistCritical Area Checklist1.1. Minimum fall to edge or Minimum fall to edge or

drains 1:100drains 1:1002.2. Minimum 50 mm set Minimum 50 mm set

downdown3.3. Adequate protection of Adequate protection of

door/screendoor/screen4.4. Treatment of sheet or Treatment of sheet or

movement jointsmovement joints5.5. Wall/floor junctions and Wall/floor junctions and

upturnsupturns6.6. Under or top of Under or top of

divisional wallsdivisional walls7.7. Perimeter edgesPerimeter edges8.8. PenetrationsPenetrations9.9. Outlet or spittersOutlet or spitters

12

3

4

5

6

7

89


Crack TreatmentCrack Treatment

SiliconeSteel reinforcement

2 Coats Superflex Membrane

Polyester Reinforcement

Ceramic Tile

Ardex Adhesive

Primer Coat


Movement JointsMovement Joints

Waterproof Membrane – 2 coats Polyester Cloth

Reinforcement

Silicone Grout

Ceramic Tile AdhesiveMinimum 100 mm Turn Up

Fibre Cement SheetPorous Surfaces

Primed

Silicone Joint Seal & Bond Breaker

Foam Backing Rod

Movement joints in tiling system must

be over sheet joints

Silicone Bond Breaker

TYPES OF UNDERTILE TYPES OF UNDERTILE MEMBRANESMEMBRANES

Types of Undertile MembranesTypes of Undertile Membranes

LIQUID MEMBRANESLIQUID MEMBRANES

SuitabiliSuitabilityty

Membrane Membrane DescriptionDescription

CommentsComments

Acrylic co-polymer water based

High Flexibility

Acrylic co-polymer cement modified

Good External Weathering

Modified Polyurethane based Some are Premium *

Water based epoxy Semi-Rigid

Conditional Polyester resin two parts reinforced with fibreglass mat.

Compatibility must be confirmed

Bitumen latex Requires a 40mm self supporting screed for tiling

Single pack moisture curing polyurethane

* Depending on formulation

Types of Undertile MembranesTypes of Undertile Membranes

SHEET MEMBRANESSHEET MEMBRANES

SuitabilitSuitabilityy

Membrane DescriptionMembrane Description CommentsComments

Conditional Butyl rubber sheet membranesDirect Bond with ARDEX Optima

APP bitumen compound sheet membranes

Requires a 40mm self supporting screed for tiling

SBR bitumen self adhesive sheet membranes

PVC sheet membranes

TPO sheet membranes

ARDEX PREPARATORY ARDEX PREPARATORY PRODUCTSPRODUCTS

Ardex Preparatory ProductsArdex Preparatory Products

ARDEX WPM 265ARDEX WPM 265

Superflex PrimerSuperflex Primer

Water BasedWater Based

Water Based Low Water Based Low Odour PrimerOdour Primer

ARDEX WPM 300ARDEX WPM 300HydrEpoxyHydrEpoxy

Water BasedWater Based

Epoxy barrier Epoxy barrier coat for coat for

application to wet application to wet substrates or substrates or freshly laid freshly laid

concreteconcrete

Hydrostatic Hydrostatic Pressure Pressure Resistant Resistant MembraneMembrane

ARDEX UNDERTILEARDEX UNDERTILE

MEMBRANESMEMBRANES

Ardex Undertile MembranesArdex Undertile Membranes

ARDEX WPM 001 (Superflex Premixed)ARDEX WPM 001 (Superflex Premixed)• CSIRO Appraisal No. 91CSIRO Appraisal No. 91• Conforms to AS/NZS 4858: 2004Conforms to AS/NZS 4858: 2004• Class 3 membraneClass 3 membrane

ARDEX WPM 002 (Superflex Two Part)ARDEX WPM 002 (Superflex Two Part)• CSIRO Appraisal No. 208CSIRO Appraisal No. 208• Conforms to AS/NZS 4858: 2004Conforms to AS/NZS 4858: 2004• Class 3 membraneClass 3 membrane

ARDEX WPM 390 (Polyurethane Dispersion)ARDEX WPM 390 (Polyurethane Dispersion)• Class 3 membraneClass 3 membrane

These products are specifically designed for use under These products are specifically designed for use under tiles and fully compatible with ABA tile adhesivestiles and fully compatible with ABA tile adhesives


(Superflex Premixed)(Superflex Premixed)

Undertile MembraneUndertile Membrane


ARDEX WPM 001 (Superflex Premixed)ARDEX WPM 001 (Superflex Premixed) Single component acrylic mastic membrane designed for Single component acrylic mastic membrane designed for

undertile waterproofing.undertile waterproofing. Will not re-emulsify under wet conditions.Will not re-emulsify under wet conditions. Fully compatible with almost all ceramic tile adhesives.Fully compatible with almost all ceramic tile adhesives. Internally reinforced for greater strength properties.Internally reinforced for greater strength properties. Suitable for application over most building / construction Suitable for application over most building / construction

substrates after priming with Ardex WPM 265, WPM 300 substrates after priming with Ardex WPM 265, WPM 300 or Multiprime.or Multiprime.

Can be tiled over in 48 hours in non critical areas. Can be tiled over in 48 hours in non critical areas. Critical areas include areas include: Critical areas include areas include:

• applied thicknesses greater than 0.5mmapplied thicknesses greater than 0.5mm• over impermeable surfaces – e.g. bond breakersover impermeable surfaces – e.g. bond breakers• areas incorporating other reinforcement. areas incorporating other reinforcement. • longer drying times are necessary in these areas.longer drying times are necessary in these areas.

Independently appraised and approved for use in wet Independently appraised and approved for use in wet areas.areas.

CSIRO Appraisal Number 91.CSIRO Appraisal Number 91.


ARDEX WPM 001 (Superflex Premixed)ARDEX WPM 001 (Superflex Premixed)CRITICAL ASPECTSCRITICAL ASPECTS

Quality surface preparation requiredQuality surface preparation required Minimum of two coats required.Minimum of two coats required. First coat must be dry, particularly in corners, before First coat must be dry, particularly in corners, before

application of the second coat.application of the second coat. Total dry film thickness of not less than 1.0mm Total dry film thickness of not less than 1.0mm

essential.essential. Particular attention should be paid to detailing Particular attention should be paid to detailing

corners, joints, cracks, protrusions and intrusions in corners, joints, cracks, protrusions and intrusions in accordance with data sheet.accordance with data sheet.

Not recommended for immersion conditions.Not recommended for immersion conditions. ARDEX WPM 002 (Superflex 2 Part) is preferred for ARDEX WPM 002 (Superflex 2 Part) is preferred for

external applications.external applications.


ARDEX WPM 001 (Superflex Premixed)ARDEX WPM 001 (Superflex Premixed)REINFORCEMENTREINFORCEMENT

Although the product is internally reinforced, Although the product is internally reinforced, external reinforcing (Ardex Deckweb) is advised to external reinforcing (Ardex Deckweb) is advised to ensure dry film thickness required is achieved in the ensure dry film thickness required is achieved in the following areas:following areas:

Corners, Joints, Cracks, Protrusions, Corners, Joints, Cracks, Protrusions, IntrusionsIntrusions

- and any other area likely to be subject to - and any other area likely to be subject to relational movement.relational movement.

External reinforcing must be thoroughly wetted out External reinforcing must be thoroughly wetted out and free from creases and air pockets before second and free from creases and air pockets before second coat is applied.coat is applied.

Movement joints greater than 6 mm should be Movement joints greater than 6 mm should be bridged using Ardex Crack Bridging Band. bridged using Ardex Crack Bridging Band.


(Superflex 2 Part)(Superflex 2 Part)



ARDEX WPM 002 (Superflex 2 Part) ARDEX WPM 002 (Superflex 2 Part) Two component cementitious acrylic membrane designed Two component cementitious acrylic membrane designed

for undertile waterproofing.for undertile waterproofing. Will not re-emulsify under wet conditions.Will not re-emulsify under wet conditions. Fully compatible with almost all ceramic tile adhesives.Fully compatible with almost all ceramic tile adhesives. Internally reinforced for greater strength properties.Internally reinforced for greater strength properties. Suitable for application over most building / construction Suitable for application over most building / construction

substrates after priming with Ardex WPM265, WPM270, substrates after priming with Ardex WPM265, WPM270, WPM 300 or MultiprimeWPM 300 or Multiprime

Can be tiled over in 4-6 hours in non critical areas.Can be tiled over in 4-6 hours in non critical areas. • critical areas include areas include critical areas include areas include • thicknesses greater than 0.5mmthicknesses greater than 0.5mm• over impermeable surfaces eg. bond breakersover impermeable surfaces eg. bond breakers• areas incorporating other reinforcementareas incorporating other reinforcement• Longer drying times are required in these areasLonger drying times are required in these areas

Independently appraised and approved for use in wet Independently appraised and approved for use in wet areas.areas.

CSIRO Appraisal No. 208CSIRO Appraisal No. 208


ARDEX WPM 002 (Superflex 2 Part)ARDEX WPM 002 (Superflex 2 Part)CRITICAL ASPECTSCRITICAL ASPECTS

Quality surface preparation requiredQuality surface preparation required Minimum of two coats required.Minimum of two coats required. First coat must be dry, particularly in corners, First coat must be dry, particularly in corners,

before application of the second coat.before application of the second coat. Total dry film thickness of not less than 1.2 mm Total dry film thickness of not less than 1.2 mm

essential.essential. Particular attention should be paid to detailing Particular attention should be paid to detailing

corners, joints, cracks, protrusions and intrusions in corners, joints, cracks, protrusions and intrusions in accordance with data sheet.accordance with data sheet.

Recommended for use on internal or external Recommended for use on internal or external surfaces and for immersed conditions that are to be surfaces and for immersed conditions that are to be tiled over.tiled over.


ARDEX WPM 002 (Superflex 2 Part)ARDEX WPM 002 (Superflex 2 Part)

REINFORCEMENTREINFORCEMENT Although the product is internally reinforced, Although the product is internally reinforced,

external reinforcing (Ardex Deckweb) is advised to external reinforcing (Ardex Deckweb) is advised to ensure dry film thickness required is achieved in the ensure dry film thickness required is achieved in the following areas:following areas:

Corners, Joints, Cracks, Protrusions, Corners, Joints, Cracks, Protrusions, IntrusionsIntrusions

and any other area likely to be subject to and any other area likely to be subject to relational movement.relational movement.

External reinforcing must be thoroughly wetted out External reinforcing must be thoroughly wetted out and free from creases and air pockets before second and free from creases and air pockets before second coat is applied.coat is applied.

Movement joints greater than 6 mm should be Movement joints greater than 6 mm should be bridged using Ardex Joint Bridging Band. bridged using Ardex Joint Bridging Band.

POLYURETHANE MEMBRANESPOLYURETHANE MEMBRANES

Polyurethane MembranesPolyurethane Membranes

Polyurethane ElastomersPolyurethane Elastomers Two Part – Polyol + IsocyanateTwo Part – Polyol + Isocyanate Fast setting (1 - 5 minutes)Fast setting (1 - 5 minutes) NOT compatible with ceramic tile adhesivesNOT compatible with ceramic tile adhesives NOT compatible with coatings or membranesNOT compatible with coatings or membranes Very sensitive to substrate moistureVery sensitive to substrate moisture Hazardous, flammable, carcinogenicHazardous, flammable, carcinogenic

Polyurethane MembranesPolyurethane Membranes One Part – Moisture CuredOne Part – Moisture Cured Fast initial set (8 hrs) - 7 day full cureFast initial set (8 hrs) - 7 day full cure As for Polyurethane ElastomersAs for Polyurethane Elastomers


Australian wet area market trendsAustralian wet area market trends Developing skepticism of acrylic membranes

because of cheap low performance product availability.

Preference for Polyurethanes SBR Latex based membranes entering the low

quality end of the market in some states.

Problems with normal PolyurethanesProblems with normal Polyurethanes Adhesives, barrier coats will not bond to two part

and moisture cured polyurethanes. Extremely sensitive to moisture in substrate

SOLUTIONSOLUTION ARDEX WPM 390 polyurethane dispersion undertile

membrane

ARDEX WPM390 PU ARDEX WPM390 PU



Polyurethane Dispersion Membrane Polyurethane Dispersion Membrane

(ARDEX WPM390)(ARDEX WPM390)

One part, isocyanate free, water basedOne part, isocyanate free, water based

Faster set than acrylics – 3 days full cure at 23°CFaster set than acrylics – 3 days full cure at 23°C

Totally compatible with ceramic tile adhesivesTotally compatible with ceramic tile adhesives

Totally compatible with coatings or membranesTotally compatible with coatings or membranes

Not excessively sensitive to substrate moistureNot excessively sensitive to substrate moisture

Non-hazardous, non flammable, solvent-freeNon-hazardous, non flammable, solvent-free


ARDEX WPM 390 PUARDEX WPM 390 PU

BenefitsBenefits

Tile adhesives bond firmlyTile adhesives bond firmly

Very tough flexible filmVery tough flexible film

Ultra violet stableUltra violet stable

Improved chemical resistance to high quality Improved chemical resistance to high quality acrylicsacrylics

Improved water resistance to high quality acrylicsImproved water resistance to high quality acrylics

Improved water absorbency to high quality acrylicsImproved water absorbency to high quality acrylics

Suitable for immersion conditionsSuitable for immersion conditions

Not as sensitive to substrate moisture as standard Not as sensitive to substrate moisture as standard polyurethanespolyurethanes


ARDEX WPM 390 PUARDEX WPM 390 PU

Areas of applicationAreas of application

Internal wet area waterproofing of walls & floors Internal wet area waterproofing of walls & floors prior to tilingprior to tiling

External roof and deck areas prior to tilingExternal roof and deck areas prior to tiling

Swimming pools and water features under tilesSwimming pools and water features under tiles

Pool deck surfaces prior to tilingPool deck surfaces prior to tiling

Industrial & commercial kitchen areas prior to tiling Industrial & commercial kitchen areas prior to tiling or similar areas where more severe chemical or similar areas where more severe chemical cleaners are used.cleaners are used.

WPM 002 Australian version

Education

Transcript of WPM 002 Australian version