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Our Hot Melt Waterproofing is a monolithic installation designed to last the lifetime of

the roof structure.

The system is robust, flexible, can be installed on decks with zero degree falls and with its method

of application, it is an extremely cost effective waterproofing system.

■ Overview 118■ Credentials 120■ Hot Melt Waterproofing 121■ Technical Design 127–135

Hot MeltSystem

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OVERVIEW OF WATERPROOFING SYSTEM

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OVERVIEW OF WATERPROOFING SYSTEMOur Hot Melt System provides a monolithic, fully bonded waterproofingmembranethatistough,flexibleandselfhealing to minor punctures for use on most protected roofs such as inverted, paved, ballasted, terraces, car parks,podiumsandplazasorgreenroofapplications.

The system has formulation modifications that promote adhesion and improve low temperature flexibilitytoensuretechnicalperformance.

The BBA certificate relating to this system states thatwhen fully protected and subjected to normal service conditions, it will provide an effective barrier to water and water vapour for the design life of the roof in which itisincorporated.

Key Features

■ Seamless application provides monolithic waterproofing.■ BBA stated life expectancy to match the design life oftheroof.■ Canbeinstalledonzerofalls.■ Bridgesminorcracks.■ Infillsminorirregularities.■ Full adhesion to deck restricts lateral water movement.■ BBACertificate06/4350.■ Fire performance is deemed to be 'unrestricted' under national requirements and suitable for use anywhere on a roof because is protected by the roof finish.■ Guaranteedsystem.

When to SpecifyOur Hot Melt Structural Waterproofing System isdesigned to last the lifespan of the roof and ideally suited asawaterproofing systembeneathpavedorballastedsurfacing, car parks, podiums, plazas, green roofs and substructures.

This waterproofing solution can also be specified withthe BauderBLUE Roof System or the Bauder BioSOLAR greenroofPVsystem.

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Situated at ground level of the British Airways i360 in Brighton, the tallest moving observation tower in the world, is an accessible roof terrace area that features over 1,500m2 of our reinforced, inverted hot melt waterproofing system with hard landscaping.

Specification downloads:www.bauder.co.uk/technical-centre

Telephone helpline: 0845 271 8800

Specification Support

06/4350

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ENVIRONMENTAL CREDENTIALS

Our Products in PracticeWe are committed to reducing the impact our products have on the environment through a reduction of energy usage and the addition of recyclate in the composition of ourwaterproofingandsystemcomponents.

Life cycle costingsThe durability of the hot melt waterproofing is suchthat there is no need to replace the product during the roof's expected life, the life cycle costing of the system is thereforeexcellent.

InsulationThe Bauder inverted insulation options are HCFC and CFCfreewithzeroozonedepletionpotential(ODP)andlowGlobalWarmingPotential(GWP).

The expanded polystyrene (EPS) scrap from themanufacturing process is reintroduced back into making ourEPSinsulationboardstokeepwastetoaminimum.When it is not used to make more EPS, foam scrap can be turned into a variety of products such as clothes hangers, park benches, flower pots, toys, rulers and seedlingcontainers.

British Research Establishment (BRE) Green GuideTheBREGreenGuidetoSpecificationgivesourproductsand systems various generic ratings, depending on the typeofdeckconstructionandthesupportstructureused.

Product ratings■ ‘D’ generic rating, element number 812530039 when used with in-situ reinforced concrete, polymer modifiedpolyesterreinforcedbitumenroofing membranes,insulation,pavingslabs.■ ‘D’ generic rating, element number 812530040 when used with in-situ reinforced concrete, polymer modifiedpolyesterreinforcedbitumenroofing membranes,insulation,roundedpebbles.■ ‘D’ generic rating, element number 812530073 when used with precast pre-stressed concrete hollow slab withscreed,polymermodifiedpolyesterreinforced bitumenroofingmembranes,insulation,pavingslabs.■ ‘C’ generic rating, element number 812530074 when used with precast pre-stressed concrete hollow slab withscreed,polymermodifiedpolyesterreinforced bitumenroofingmembranes,insulation,rounded pebbles.■ ‘D’ generic rating, element number 812530049 when usedwithinsitureinforcedconcretewith50%GGBS and20%recycledcoarseaggregate,polymer modifiedreinforcedbitumenroofingmembranes, insulation,pavingslabs.■ ‘C’ generic rating, element number 812530050 when usedwithinsitureinforcedconcretewith50%GGBS and20%recycledcoarseaggregate,polymer modifiedreinforcedbitumenroofingmembranes, insulation,roundedpebbles.■ ‘D’ generic rating, element number 812530062 profiledmetal“deep”deckingwithinsituconcrete, polymermodifiedpolyesterreinforcedbitumen roofingmembranes,pavingslabs.■ ‘C’ generic rating, element number 812530063 profiledmetal“deep”deckingwithinsituconcrete, polymermodifiedpolyesterreinforcedbitumen roofingmembranes,roundedpebbles■ ‘B’ generic rating, element number 812530002 structural steel trusses, galvanised steel purlins and deck,plywood(temperateEN636-2),polymer modifiedpolyesterreinforcedbitumenroofing membranes,insulation,pavingslabs.■ ‘A’ generic rating, element number 812530026 structural steel trusses, galvanised steel purlins and deck,plywood(temperateEN636-2),polymer modifiedpolyesterreinforcedbitumenroofing membranes, insulation, rounded pebbles

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TECHNICAL CREDENTIALS

Root Resistance for Green RoofsThe Bauder Hot Melt System for a green roof uses our AP2 root resistant protection sheet that has been tested and certified under FLL (ForschungsgesellschaftLandschaftsentwicklung Landschaftsbau) guidelines,whichisthebenchmarktestforrootresistanceinEurope.

Product and Installation TechnologyThe nature of the hot melt product is to remain ‘live’ throughout its lifespan so that any minor punctures during service will self-heal and therefore should not require any remedialaction.

The technology of the primer and the excellent adhesion properties of the hot melt mean that the membrane is fullybondedto thedeckandgivesa toughyetflexiblewaterproofing.

BBA CertificationOur Hot Melt Waterproofing has been tested by theBritishBoardofAgrément (BBA) and carries certificatenumber06/4350.

The BBA certificate relating to this system states thatwhen fully protected and subjected to normal service conditions, it will provide an effective barrier to water and water vapour for the design life of the roof in which it is incorporated.

Fire PerformanceWhen our Hot Melt Waterproofing System is used inprotected or inverted roof specifications and coveredwith an inorganic finish it can be considered to be'unrestricted' under national requirements and suitable foruseanywhereonaroof.

Inroofsthatincorporatenon-combustiblesurfacefinishesassetoutinEuropeanCommissionDirective2000/553/EC such as min 50mm thickness of stone ballast or min 40mm thick stone or concrete paving slabs that fully cover the roof, these are deemed to fully satisfy the regulationswithnotesting.

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HOT MELT WATERPROOFINGExampleSystemConfigurations

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Paving on SupportsBauder XPS WFRLincreasesthethermalcapacityoftheinsulation.Bauder InsulationthicknesstosuitU-valuerequired.(seechapter7)Bauder AP1 Access Protection Sheet fullybondedintothehotmeltliquid.Hot Melt with Polyester Reinforcementfirst3mmlayerofhotmeltinfillsandfullybondstoallminordeviationsandthedeck.Thepolyesterreinforcement strengthens the system and the second 3mm layer of hot melt bleeds through the reinforcement tocreatea6mmmonolithicwaterproofingmembrane.The deck is primed with Bauder Polymer Primer to createa50%increaseinbondstrength.

WB Wildflower Blanket and Biodiverse SubstrateBauder Filter Fleeceisafiltrationlayerthatpreventssubstratefinesfromwashingintothedrainageorwaterstoragelayer.DSE20 or DSE40waterstorageanddrainagelayer.Bauder WFRLincreasesthethermalcapacityoftheinsulation.Bauder Inverted InsulationthicknesstosuitU-valuerequired.Bauder Root Barrier AP2fully bonded into the hot melt liquid, this protection layerisrootresistantandmeetsFLLguidelines.Hot Melt liquid with Polyester Reinforcementfirst3mmlayerofhotmeltinfillsandfullybondstoallminordeviationsandthedeck.Thepolyesterreinforcement strengthens the system and the second 3mm layer of hot melt bleeds through the reinforcement tocreatea6mmmonolithicwaterproofingmembrane.The deck is primed with Bauder Polymer Primer to createa50%increaseinbondstrength

HOT MELT INVERTED SYSTEM WITH PAVING

HOT MELT PODIUM GREEN ROOF

Vegetation and SubstratelightweightBauderintensivegrowingmedium.Bauder Filter Fleeceisafiltrationlayerthatpreventssubstratefinesfromwashingintothedrainageorwaterstoragelayer.DSE60 or DSE40waterstorageanddrainagelayerinfilledwithBaudermineraldraintoprovidemulti-directionaldrainage.FSM 600 Protection MatBauder PE Foilpolyethylenefoilseparationandsliplayer.Bauder Root Barrier AP2fully bonded into the hot melt liquid, this protection layerisrootresistantandmeetsFLLguidelines.Hot Melt liquid with Polyester Reinforcementfirst3mmlayerofhotmeltinfillsandfullybondstoallminordeviationsandthedeck.Thepolyesterreinforcement strengthens the system and the second 3mm layer of hot melt bleeds through the reinforcement tocreatea6mmmonolithicwaterproofingmembrane.The deck is primed with Bauder Polymer Primer to createa50%increaseinbondstrength.

HOT MELT INVERTED BIO-DIVERSE GREEN ROOF

PROJECTS

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150 CheapsideLondon

Norwich Memorial

i360 Brighton

Wellington Place

Marischal SquareAberdeen

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PROJECT STUDIES

Marischal square is a mixed use complex in the centre of Aberdeen based on the site of the former council headquartersbuilding,St.NicholasHouse.In2011MuseDevelopments undertook a £107m redevelopment of the site creating space for two new office buildings, sevenrestaurants and café bars, a 126-room hotel, a modern civic space and a new public space area in between the newbuildings.

One of the key challenges for the project was the fact that Muse Developments and Morgan Sindall, who were working jointly on the development, were looking for a single source waterproofing. Bauder proved to be theperfect fit, covering and delivering all elements of thewaterproofingsystems.

Withlargepartsofthenewroofingareasbeingaccessibleterraces and areas which will experience a significantamount of foot traffic, the Bauder Hot Melt StructuralSystemwasanaturalchoice.Thesystemwascombinedwith hard and soft landscaping to provide the different aspects of the various terraces, stairways, podium decks androoftops.

Approved contractor Briggs Amasco carried out the works onthe5400m²of theseparateroofareas,whilstexpertBauder site technicians carried out a total of 26 site visits over the duration of the project to ensure the quality of the installations. Following a final inspection, Bauderwas able to issue a 20 year product and workmanship guaranteeontheproject.

HOT MELTSYSTEMMarischal Square

Project: Marischal SquareLocation: AberdeenRoof Area: 5,400m²Client: Muse Development & Morgan SindallApproved Contractor: Briggs Amasco

••BauderBakorHotMeltWaterproofingSystemwithAP1AccessLayer to hard landscaping areas and Bauder AP2 Root Resistant ProtectionMembranetogreenroofareas.• Bauder JFRI Inverted Insulation• FSM600• DSE40• Filter Fleece•BauderIntensiveSubstrate.

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The impressive Belvedere Court 4-storey building, which was converted from a hotel into 16 prestigious residential apartments in 2008, recently underwent further development including extensions for additionalaccommodation, basement housing, a communal swimmingpool,atheatreandanundergroundcarpark.

As part of the refurbishment of the site, the failing waterproofingofthegreenroofonthecarparkroofdeckneededtoberemovedandreplaced.Bauderapprovedcontractor, The Complete Roofing Company (TCRC),initially proceeded to remove the existing pathways and landscaping before removing the failed system and providingremedialrepairstothedamagedroof.

With the car park roof also being used as a recreational green roof for the residents of Belvedere Court, the BauderHotMeltSystemwasanobviouschoice.Installedwith the Bauder AP2 root barrier for root resistance the recreationalgreenroofwasinstalledabove.

Oncompletionofthewaterproofingelementstheroofwasleaktestedtoensuretheroof’sintegrity.TCRCtheninstalled the Bauder green roof components; PE foil, FSM600 protection membrane, DSE40 drainage layer, filter fleece and over 300 tonnes of Bauder intensivesubstrate.Finally,RowlandGoldturfwastheninstalledwithadriplineirrigationsystemundertheturf.

HOT MELTSYSTEMBelvedere Court

Project: Belvedere CourtLocation: Sidmouth, DevonRoof Area: 1,316m²Specifier: The Complete Roofing Company LtdApproved Contractor: The Complete Roofing Company Ltd

•BauderBakorHotMeltWaterproofingSystemwithAP2 rootresistantprotectionmembrane.• Bauder green roof components:• FSM600• DSE40• Filter Fleece•BauderIntensiveSubstrate.

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■ Preconditions and Preparation 128■ Application 130■ CAD Details 131

Hot Melt SystemTECHNICAL DESIGN

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PRECONDITIONS AND PREPARATIONSurface Applied Curing CompoundsCuring and protection is covered in section 8 of BS EN 13670:2009 (E) and curing compounds are a popularmethod of controlling the hydration process, due to their easeofapplicationandlowmaterialcost.

They come in liquid form and are generally spray applied forming a film on the concrete surface. Below is anindicative list of types of suitable and un-suitable Surface Applied Curing Compounds for use in conjunction with BauderHotMelt.

Acceptable CompoundsSodium Silicate Based Compounds - These compounds whenproperlyapplieddonotleaveafilmorresidueonthe concrete surface, which would otherwise affect the bondstrengthofthemembranetotheconcretesurface.

Resin Based Compounds - These form a residue that cantakebetween45-60daystooxidizeandflakeoff,when exposed to the elements,and must be completely removedpriortotheapplicationofthemembrane.

Unacceptable CompoundsWax Based Curing Compounds - These cease to be an effective curing compound after about 28 days, but take 90 - 100 days to fully dissipate when exposed to the elements.Thewaxresiduewillweakenthebondofthemonolithicmembrane,andisalsodifficulttoremove.

Acrylic Silicate Based Curing Compounds - These form a permanent film on the surface of the concrete, andcould prevent the monolithic membrane from forming anacceptablebondwiththeconcrete.

The use of any liquid curing compound in conjunction with our Hot Melt Waterproofing must be approved by Bauder Ltd. Please contact our technical department on +44 (0)845 271 8800.

Acceptable Deck Substrates Not every form of deck substrate construction is suitable toreceiveourhotmelt.

Structural In Situ and Pre Cast Concrete Deck - The concrete deck should be properly cured. Therecommended curing time is 28 days. Depending onsite conditions and weather, it can be possible to install Bauder Hot Melt monolithic membrane onto a concrete deck after only 14 days curing - provided the membrane hassuccessfullypassedabondstrengthtest.

Lightweight Structural In Situ and Pre Cast Concrete Deck - The lightweight concrete should have a wood floatfinish.Therecommendedcuringtimeis28days.Abondtestiscarriedouttoconfirmadhesiontothedeck.

In Situ Concrete Deck Installed into Vented Profiled Metal Deck-Awoodfloatfinishwillberequired,andmayhave to cure for up to 60 days before proper adhesion is achieved.Abondcheckmustbecarriedouttocheckforthecorrectadhesion.

Plywood, OSB or Dens-Deck (gypsum) - Providing thecorrectpreparationhasbeencarriedout i.e.fixingscounter-sunk, joints properly taped, and the deck correctly supported to withstand the inverted build up loadingweight.

Cross Laminated Timber (CLT) - Providing the correct preparationhasbeencarriedouti.e.fixingscounter-sunk,joints properly taped, and the deck correctly supported towithstandtheinvertedbuilduploadingweight.

Unacceptable Deck SubstratesLightweight Insulating ConcretesConcrete made with aggregates such as Perlite, Pumice, Vermiculite will have a very low density and by their very porousmakeup,will retainahighdegreeofmoisture.This high moisture content can create a problem in achievingagoodbondwiththedecksurface.However,this typeof lightweight concrete canbemodifiedwitha suitable latex, resin, or polymer treatment to provide an appropriate surface onto which the membrane will adheresatisfactorily.

ScreedsPlease note that we discourage the specification ofscreeded surfaces, because although a good adhesion can be obtained once prepared, they will permit water to track and become absorbed beneath the system in the eventthatthewaterproofingisdamaged.

Drainage FallsOurhotmeltwaterproofingsystemissuitableforuseatzerofalls,asoutlinedinBS6229:2018,nowspecificallydefined as a “roof with a fall between nil and 1:80”.However, back falls on a roof deck are not acceptable and need correction through either an additional recessed rainwateroutletorlocalisedscreedtofalls.

A detailed structural analysis performed by a qualifiedengineer will indicate risk areas and should be followed with a site level-survey by the deck installer to show that nobackfallsexistbeforewaterproofingcommences

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CleaningPreparing a concrete deck generally consists of thoroughly removing dirt debris and dust by means of sweeping and blow/suction cleaning the deck prior toapplying thesurfaceprimer.However, thedeckcanbeaffected by surface contaminants that are not easily removed by sweeping such as oil or diesel spills, laitance, liquidcuringcompoundsorformreleaseagents.Whenany of these substances have been spilled, applied or have transferred to a concrete surface; or when laitance occurs, it must be removed prior to the application of our HotMeltWaterproofing.Belowarelistedsomemethodsof preparation:

■ Chemical cleaning■ Scarificationandgrinding■ Blast cleaning■ Acid etching

PrimingThe deck surface must be thoroughly primed ideally withBauderPolymerPrimer.Thisgreatlyenhances theadhesion between the membrane and the substrate and driesveryquickly.

Alternatively, Bauder Quick Dry Bitumen Primer delivers acostcompetitivesolution.

ReinforcementBauder NeopreneBauder Neoprene Reinforcement is used where differential movement can be expected between substratese.g.concretedeckandtimber/metal/calciumsilicateupstands.

As seen in Junction between Differing Material Upstand example on page 109

Access and Protection LayersFor all applications themembrane requires an access/protection layer bedded into it to protect it from trafficking and likely damage from following trades.The protection layer also allows for access for the safe installationofthelandscapefinish.

The type of protection layer will depend on the proposed build-up and the expected period of time that the system isgoingtobeexposedtofollowingtrades.

Bauder AP1Thisisa1.5mmreinforcedmodifiedbitumenmembranefor use on horizontal and vertical surfaces to provide accessandsolarprotection.

Bauder AP2A4.2mmreinforcedmodifiedmineralsurfacedbitumenmembrane root barrier for horizontal and vertical surfaces,andsolarprotectiontoexposedareas.

Bauder AP3This is a rigid 6mm composite board for horizontal and verticalsurfaces.Itisusedforheavylandscaping,tarmacandareasrequiringsubstantialprotection.

Testing and Quality AssuranceAs part of their own quality control procedures, the installing Bauder approved contractor will mechanically test the membrane as it is installed to ensure that the membrane is at least 6mm thick beneath the protection sheet. Additionally, our site technicians will randomlyinspecttheworkduringinstallation.

To meet the criteria of our system guarantee, we will carry outthefinalinspectionwiththeapprovedcontractorinattendance to ensure the integrity of the finished roofmeetstherequiredstandardsofinstallation.

Any issues identified will be logged and reported forimmediaterectification.Anyremedialworkwillthenbere-tested.

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Typically, hot melt monolithic rubberised bitumen systemsareinstalled,byfirstwaterproofingthedetailsofthe deck such as upstands and outlets, before applying themembranetothemainfieldareaofthedeck.

Installation of the Hot MeltThe works are planned to achieve an even monolithic applicationofthesystemacrossthedeck.

Deck PreparationThe dirt, dust and debris are removed prior to applying the deck surface primer. If contaminants are presentthese must also be removed through chemical cleaning, scarificationandgrinding,blastcleaningoracidetching.

Peel Bond TestA peel bond test is used to establish the cured state of theconcretedeck.

Priming the DeckBauder Polymer Primer is applied to a cleaned and prepareddecktogivea50%increaseinbondstrength.

METHOD OF APPLICATIONFirst Layer of Bauder Hot MeltThe hot melt is applied by squeegee to a minimum depthof3mm.

Polyester Reinforcement SheetPolyesterReinforcementislaidintothestillhotfirstlayerofBakor790-11andlightlybrushedin.

Second Layer of Hot Melt and Protection SheetThe second layer of membrane is installed on the same day as the first and is also applied to a 3mm depth,creatingacombined6mmdepthofhotmelt.

As the installation of the second layer progresses, the appropriateaccess/protectionsheetisbeddedintothemembranewhileitisstillhot.

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AP2beingbeddedintothesecondlayerofhotmelt.

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GENERAL DETAILINGMonolithic Concrete UpstandWhen no movement is expected there is no requirement for additional reinforcement. The statutory PolyesterReinforcementissufficient.Anexampleofthiscouldbewhere an in situ concrete upstand and deck are poured atthesametime.

Junction Between Differing MaterialsWhere there is the possibility of minimal movement, such as where a concrete deck is in place and similar materials such as brickwork or blockwork are forming the upstands,asecond layerof reinforcement is required.This is formed using Polyester Reinforcement, 75mm up the vertical and 75mm onto the horizontal bedded and coveredinBakor790-11.

Junction Between Differing MaterialsWhere movement is expected between different materials, such as where a concrete deck is in place and metal, ply, OSB etc are used to form upstands, a flexible second layer of reinforcement is required. Thisreinforcement is our Neoprene and as previously, it is installed 75mm up the vertical and 75mm onto the horizontal,beddedandcoveredin790-11.

No Movement Expected

Minimal Movement Expected(Brickwork Upstand / Concrete Deck)

Movement Expected(Metal-plywood Upstands / Concrete Deck)

75mm

75mm

75mm

75mm

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GENERAL DETAILINGTypical WallBauder inverted upstand insulation boards must be wedged in place at deck level by the horizontal inverted insulationandclippedormechanicallyfixedat the topedge to hold in place. Intermediate securing may berequireddependingonupstandheight.Theprotectionofawaterproofedupstandrequiringinsulationwould(asshown)bebyusinginvertedinsulationwithaprotectivecoating. In a non- insulated upstand, protection fromsolar degradation would be by the incorporation of BauderAP2protectionsheet.

Typical ParapetMany types of parapet upstand can be formed using the Bauder Hot MeltWaterproofing system. This exampleof an insulated upstand has the exposed areas of waterproofingprotectedfromsolardegradationbytheappropriate vertical insulationboard.. The flat areasofwaterproofingwillbeprotectedfromsolardegradationby the inverted insulation and or ballast can be therefore be installed with an AP1 protection sheet. As can beseeninthisexample.Itismostcommonpracticeforthedetailingwaterproofingtobeinstalledpriortothemainroofareas.

Rainwater OutletIn many applications a proprietary rainwater outlet and/ordownpipewillbecastintheconcreteatthetimeof installation.Analternative is foracore tobedrilledthroughthecuredconcretestructure.UsingtheBauderHot Melt Compact Vertical Outlet, it is relatively easy for the Bauder Hot Melt Waterproofing System to bebondeddirectlytotheoutlet.

Theoutletmustbeprimedtoreceivethewaterproofingand any bridge between the outlet and concrete structure must be reinforced with the un-cured neoprene flashing.

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Suitablecounterflashingtobefixedandpluggedaspermanufacturer'srecommendations.Chase to be primed with Bauder sealerprimer.CounterflashingtobepointedinBaudersealant.

Appropriate insulation with GRP Facing

NewProfiledMetalCapping to client's specification

Metalflashing/Clip installed over appropriateinsulation.Contact Bauder technicalforfixinginstructions

Leaf Grille

Bauder Inspection Chamber

Metal retention clip(byother)

Cladding System by Others

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Pitch Pocket DetailOne of the major advantages of the Bauder Hot Melt Waterproofing System is ability to create pitch pocketdetails around difficult and awkward penetrations ontheroofsurface.Thecreationofapocketusing0.7mmgalvanized steel, reinforced at the intersection with the deck structure using un-cured neoprene is a common principalofthistypeofsystem.Thepocketisfilledwiththe hot melt material which seals effectively around anyprimed surface.Thepocket andhotmeltmustbecovered by the protection sheet of the main system, shownhereinblue.

Soil Vent PipeWith a pipe penetration such as a proprietary soaker (by others) is installed with a base flange that can besuitability secured to the deck and primed to receive the Bauder HotMeltWaterproofing System. The jointbetween proprietary soaker and concrete deck structure mustbereinforcedusinganun-curedneopreneflashing.The proprietary soaker must be tall enough to ensure a 150mmheightabovethefinishedroof.

It is good practice to ensure that the top of the pipe is finishedwitheitheracowlorcap tocloseoff thepipeandprotectthewaterproofing.

Expansion JointA simple but effective way of creating an expansion joint within the material is to utilize the un-cured neoprene flashing sheet and a foam rod or tube. This methodof detailing allows the creation of the expansion joint without major disruption to the flow of water to thedrainagepoints.

However, the design and required performance of any type of expansion joint should be discussed at the design stageof theproject toensure that the specificationofthe joint movement can be achieved with this method ofdetailing.Otherexpansion jointdetailsareavailableforusewiththeBauderHotMeltWaterproofingSystem.

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Soil vent pipe

Proprietqry Soaker

(byothers)

Proprietary counter flashingandjubileeclipto clamp the access protection sheet

Exposed Protection sheetAP2/K4E

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GENERAL DETAILINGInsulated Upstand to Raised CillsNot all situations require a level threshold. For thosesituations that do not a minimum upstand of 150mm shouldbeattained.

Thisexampleofaninsulatedupstandtoadoor/windowcill has the exposed areas of waterproofing protected from solar degradation by the vertical GRP faced insulation. The flat areas of waterproofing will beprotected from solar degradation by the inverted insulation and ballast. Both vertical and horizontal canbeprotectedwithanAP1AccessSheet.

Upstanddetailingisgenerallyinstalledfirst.

Upstand Detail Linear DrainMany threshold details to balconies and terraces may needtocomplywithBuildingRegulationsPartM.Theymay also need to be required to comply with NHBC Chapter7.1.

Bauder Hot Melt is installed to all horizontal and vertical surfaces and reinforced using either polyester or un-cured neoprenereinforcementdependingonthesubstrate.

BauderHotMeltWaterproofingshouldbeinstalledpriortothedoor/windowframesbeinginstalled.AnEPDMflashingattachedtothedoor/windowframeshouldbebondedtothewaterproofing.

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Suitablecounterflashingtobefixedandpluggedaspermanufacturer'srecommendations.Chase to be primed with Bauder sealerprimer.CounterflashingtobepointedinBaudersealant.

Cill

EPDM(byothers)bondedtotheaccess protection sheet

Extended onto top of upstand

EPDM (byothers)bonded to the accessprotection

sheet

1.Waterproofinglayers(Bauderbitumenmembrane illustrated)2.Insulationwithanglefillettoeradicate90°internal changeofdirectiontovertical.3. Bauder AVCL4. 75mm upstand height under an overhanging (minimum45mm)doorsill.5. Bauder recommend a linear drain be included inthedesign.6.Minimum10mmgapbetweendecking/paving andperimeterupstands/thresholds.

Projecting cill and drip, minimum 45mm overhang. Cill to be bedded in sealant and fixed as per the manufacturer’s recommendations.

Membranes dressed under the cill.

Bauder Linear Drain (recommended)

Bauder InsulatedOutlet.

Raised and drained decking or paving on Bauder support pedestals.

4-8mm gap betweenbetween decking / paving units.

Low Kerb, min 25mm below underside of the

door cill to act as overflow.

Fall / Slope to outlet.

A fall away from the low thresholdupstand / detail must be provided.

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Minimum 150mmSplash Zone.

Lift Well Upstand (Lift Over-Run)In insulated lift over-run details this detail can easily be dealt with by marrying our Bauder Hot Melt and Bauder WarmRoofWaterproofingSystems.

The Bauder warm roof will be installed to the lift-run initially comprising air and vapour control layer /insulation/underlayandcapsheet.TheBauderHotMeltWaterproofingSystemwillthenbebondedtothewarmroof(seediagram).

Invertedinsulationandlandscapefinishwillbeinstalledtocompletethedetail.

Two Way OutletAproprietarytwowayoutlet(byothers)willgenerallybecastintotheconcretedeckattimeofinstallation.

The clamped grill is removed to enable the Bauder Hot MeltWaterproofingtobeinstalled.

The two way outlet must be primed to receive the BauderHotMeltWaterproofingandthebridgebetweenthe outlet and concrete structure must be reinforced with un-curedneoprene.

Theclampingisthenreplaced.

PIR Insulated Upstand to ParapetOn a partially insulated upstand to parapet, this can be dealt with by marrying our Bauder Hot Melt and Bauder WarmRoofWaterproofingSystems.

The Bauder warm roof will be installed to the minimum of 300mm from the deck surface comprising air and vapour control layer/ insulation/underlayandcapsheet.TheUpstand above this will be completed using a suitable Bauder underlay and cap sheet that does not require to be insulated. Inverted insulation and landscape finish will be installed onto Bauder Hot Melt WaterproofingSystemtocompletethedetail.

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Bauder insulated upstand support bracketandsuitablefixingsforusewith30mmthickinsulation.

Bauder self-adhesive VCL to be usedoncombustiblesubstrates.

If required use suitable exterior grade plywood to clad the parapet, plywood to be mechanicallyfixed.Refertothespecification.

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Cold LiquidApplied Systems