Advantages• Solar reflective surface - reduces solar

gain while membrane is temporarilyexposed.

• Dimensionally stable - wrinkleresistant.

• Hot climate grade - speciallyformulated for high ambienttemperatures

• Single layer - simple, reliable, lowlabour cost.

• Cold applied - self-adhesive overlapsensure continuity.

• Flexible - accommodates minorsettlement and shrinkage movement.

• Chemically resistant - provideseffective external protection againstaggressive environment.

• Facilities Quality Assured Installation- printed overlap line ensuresminimum laps; light colour highlightsaccidental damage for simple patchrepairs.

ApplicationsWaterproof membrane for inverted orprotected membrane roofs in hotclimates, such as the Middle East.Bituthene® 8000 HC is also suitable forwaterproofing basements and other sub-structures in conditions where easierhandling, because of reduced solar gainis an advantage.

DescriptionBituthene 8000 HC is a unique 1.5mmthick flexible, preformed waterproofmembrane comprising a grey HDPEcomposite film and a thick self-adhesiverubber/bitumen compound. The speciallydeveloped film is dimensionally stable

and reduces solar gain to facilitateapplication in high ambienttemperatures. The adhesive compound isalso formulated specifically for hotclimates.

Continuity is achieved by overlappingadjacent rolls by 50mm and firmlyrolling. Being factory made, the thicknessof the membrane is constant throughoutand is not subjected to variation by sitelabour as occurs with brush appliedmembranes.

Bituthene®

8000 HC onPrimer B1

Servijoint® One

Solarshield™ HC

Details shown are typical illustrations only and not working drawings. Forassistance with working drawings and additional technical advice pleasecontact Grace Technical Services

Bituthene® 8000 HC

Cl/SfB

9 Ln2

Ref. RM007HC 05/06

w w w . g r a c e c o n s t r u c t i o n . c o m

Grey, solar reflective, flexible self-adhesive waterproofmembrane comprising a rubber/bitumen compound and specialcomposite film for use in hot climates only.

Concrete Deck Waterproofing - Membranes

85

86

InstallationMeasures should be taken to ensure thatall surfaces are free from ice, frost orcondensation. Installation isrecommended between +4°C and +55°C.

Roof slabs should be surface dry, freefrom standing water, and laid to aregular surface free from sharpprotrusions and hollows.

Horizontal and vertical surfaces shall besmooth, regular, dry and free from nailsand primed with one coat of Primer B1applied by brush or roller at a rate of 10-12 sq m/litre depending on theporosity of the surface, and allowed todry completely before the application ofthe Bituthene 8000 HC (horizontalsurfaces under base slabs do not usuallyrequire priming before applying themembrane).

Bituthene 8000 HC shall be laid bypeeling back the protective release paperand applying the adhesive face onto the

prepared surface. The material shouldbe brushed on to the surface to ensuregood initial bond. Adjacent rolls arealigned and overlapped 50mm minimumat side and ends and well rolled with afirm pressure using a Bituthene LapRoller to ensure complete adhesion andcontinuity between the layers. In coolconditions, the application of gentleheat between layers by hot air gun orsoft flame will assist in promotingadhesion at lap joints.

Areas of apparent damage should bechecked and punctures or damagedareas should be cleaned and patchedusing Bituthene 8000 HC with 50mmlaps all round.

Pipe entries may be sealed withBituthene® LM extended over theadjacent flat slab area to give aminimum 50mm lap with the Bituthene8000 HC. Bituthene LM is a twocomponent compound forwaterproofing irregular profiles inconjunction with Bituthene® systems. Itis supplied in 5.7 litre packs.Followingthe application and inspection careshould be taken to prevent damage byfollowing trades. As soon as practicableafter the application, Bituthene 8000 HCshould be protected from exposure to the

weather and physical damage usinginsulation boards laid dry.

LimitationBituthene 8000 HC is not intended forpermanent exposure. Exposed areas of

membrane at upstands etc, should be coveredwith Solarshield™ HC or similar flashing.

Health And SafetyAdvice is given for the products listed inthis data sheet.

There is no legal requirement for aMaterial Safety Data Sheet for Bituthene8000 HC, Solarshield HC, ServipakProtection Boards, or Lap Roller. Forhealth and safety questions on theseproducts please contact GraceConstruction Products Limited.

For Primer B1, Bituthene LM, BitutheneMastic and Pak Adhesive read theproduct label and Material Safety DataSheet (MSDS) before use. Users mustcomply with all risk and safety phrases.MSDS’s can be obtained from GraceConstruction Products or from our website at www.graceconstruction.com.

SpecificationBituthene® 8000 HC preformed, solarreflective and damage indicative self-adhesive membrane shall be laid on tosmooth concrete substrates and on tovertical surfaces primed with Primer B1,applying the preformed membrane stickyside downwards, to give well rolled50mm overlaps, and shall be laid strictlyin accordance with the manufacturer’sinstructions and supplied by GraceConstruction Products Limited, AjaxAvenue, Slough, Berkshire,SL1 4BH, United Kingdom.Tel: +44 (0)1753 692929.Fax: +44 (0)1753 691623.

Supply

Bituthene® 1 m x 20 m roll8000 HC Weight 32 kgPalletisation 20 rolls per palletStorage Store upright in dry

conditions below 40°CNominal 1.5mmThickness

Ancillary ProductsSee separate data sheetsPrimer B1 5 and 25 litre drumsCoverage 10-12 sq metre per litre

depending on method of application, surface texture, porosity and ambient temperature

Bituthene LM 5.7 litre packsBituthene® Mastic 3 litre canLap Roller UnitAncillary ProductsSee separate data sheetsSolarshield® HC 1 m x 16 m rollServipak®

protection boardsPak Adhesive 5 litre can

Comparsion of Solar Heat Gain Over Time On Exposed Membrane Samples

Equipment by OthersSoft brush, Stanley knife, brush or rollerfor priming. Stiff broom and airline forcleaning surface.

Adcor, Aerofil, BETEC, Bituthene, Hydroduct, Insupak, Korkpak, Paraflex, Paraseal, Preprufe, Procor, Servicised, Servidek, Servigard, Servijoint, Servimastic, Servipak,Servirufe, Serviseal, Servistrip, Servitite, Vertigard and Vertiseal are registered trademarks of W R Grace & Co.-Conn.Adprufe, Armourtape, Bitushield, Bitustik, Bitutape, Hydropaste, Pak Adhesive, PVC Edgetie, Serviband, Serviflex, Servitape, Slipstrip, and Solarshield are trademarksof W R Grace & Co.-Conn.

The information given is based on data and knowledge considered to be true and accurate and is offered for the user’s consideration, investigation and verification. Since the conditions of use are beyond ourcontrol we do not warrant the results to be obtained. Please read all statements, recommendations or suggestions in conjunction with our conditions of sale including those limiting warranties and remedieswhich apply to all goods supplied by us. No statement, recommendation or suggestion is intended for any use which would violate or infringe statutory obligations or any rights belonging to a third party.Copyright 2006. Grace Construction Products Limited. Printed in England - 05.06- Ref. RM007HC

Grace Construction Products Ltd, Ajax Avenue, Slough, Berkshire SL1 4BH United Kingdom Tel +44 (0)1753 692929 Fax +44 (0)1753 691623

Visit our web site at www.graceconstruction.com