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DAMP PROOF MEMBRANEVisqueen DPM TO PIFA STANDARD——Conforms to PIFA standard 6/83A:1995.——High puncture resistance.——Proven performance over many years.——Withstands rough site handling.——Comprehensive range to satisfy most site conditions.——Manufactured from the highest quality reprocessed materials.DescriptionVisqueen Damp Proof Membranes are ahigh quality range of polyethylene dampproof membranes, available in blue orblack and produced to PIFA Standard6/83A:1995. Manufactured from highquality reprocessed low densitypolyethylene (LDPE) Visqueen DampProof Membranes have successfullyprevented moisture penetration fromfloors for many years. A strict selectiveraw material policy ensures aconsistently high quality DPM. VisqueenDPMs comply with the relevant BuildingRegulations and should be used inconjunction with the Visqueen JointingSystem to ensure complete integrityof joints.To maintain compatibility between dampproofing components and avoid issuessuch as polymer plasticizer migration,Visqueen strongly recommend the use ofVisqueen DPCs.ApplicationThe extensive range of Visqueen DampProof Membranes means that they aresuitable for use in floors in most siteconditions, not subject to hydrostaticpressure. If hydrostatic pressure existsuse Visqueen Tanking Membranes.For jointing adjacent sheets of VisqueenDPM, DPM to DPC and DPC to DPC,Visqueen Jointing System should be used.To complete the system Visqueenstrongly advise the use of the followingcomponents when installing themembrane;——Visqueen Double SidedJointing Tape.——Visqueen Girth Jointing Tape.——Visqueen Top Hat Units.IMPORTANTBased on BRE and CIRIA guidelines,Visqueen Building Productsrecommend the use of special gasprotection membranes (rather thantraditional polythene DPMs) assuitable protection against groundgases. On brownfield sites or wherethere is ground contamination pleaseseek further advice from VisqueenBuilding Products as use of specialistVisqueen Gas Protection maybe necessary.TECHNICAL DATAThickness (μm)250 300 500Nominal Weight (g/m²) 232 279 465Roll Length (m) 25 25 12.5Roll Width (m) 4 4 4Water Vapour Transmission (g/m2/day) max 1 0.8 0.5Tensile Strength BS2782:320A 90N/25mm (min), 14.4MPa (min)Elongation at Break BS2782:320A*(56 days @ 80OC)Tear Resistance MOAT 27.5.4.1unaged 500% (min)aged* 250% (min)10N (min) 40N/mm(min)108N/25mm (min),14.4 MPa (min)unaged 500% (min)aged* 250% (min)12N (min) 40N/mm(min)Impact Strength Body (f50,g) 500 600 1000180N/25mm (min),14.4 MPa (min)unaged 500% (min)aged* 250% (min)20N (min) 40N/mm(min)28
P8REQUIRED COMPONENTSAvailable as a download fromvisqueenbuilding.co.uk/dpMVisqueen top hat unitsVisqueen DPM Jointing SystemVisqueen Zedex CPT DPCSPECIFICATION SUPPORTThe following items are availableto View Online or TO Download fromVISQUEENBUILDING.CO.UK/dpmCPDH&STECHNICAL DATASHEETSTYPICAL INSTALLATION CAD DETAILSHEALTH & SAFETY DATACPD H&S NBSH&SH&S NBSINSTALLATIONWhen used in accordance with the PIFACertificate and the relevant clausesof CP 102: 1973 in concrete floorsnot subject to hydrostatic pressure,Visqueen Damp Proof Membranes forman effective barrier to the passage ofmoisture from the ground. The DPMmust be continuous with the DPC in thesurrounding walls.The membrane should be installed ona compacted sand blinding layer orsmooth concrete float finish. The DPMmust be covered by a screed or otherprotective layer as soon as possibleafter installation. Care should be takento ensure that the membrane is notstretched or displaced when placing theconcrete or screed over the membrane.Sufficient allowance should be madeto avoid bridging (i.e. creating areasof unsupported membrane) duringscreeding operations at internal angles.JOINTING PROCEDURES——Always ensure that the membrane isclean, dust free and dry at the timeof jointing.——Adjacent sheets must be overlappedby a minimum of 150mm.——Bond together using VisqueenDouble Sided Jointing Tape.——The joint should then be sealedusing Visqueen Single SidedGirth Tape.Where the sheets have been perforatedthey should be patched with sheetsof identical thickness lapped at least150mm beyond the limits of thepuncture and bonded with VisqueenDouble Sided Jointing Tape and sealedwith Visqueen Single Sided GirthJointing Tape.IMPORTANTFor more information on jointingplease see our installationsection P83.ALSO CONSIDERVisqueen ecomembraneFor further details see P26.Visqueen GX Pre AppliedmembraneFor further details see P64.Visqueen highperformance dpmVisqueen High Performance DPMis manufactured from co-polymerthermoplastics giving superiorstrength and tear resistance. Fulldetails available on request or visitvisqueenbuilding.co.uk/dpmVisqueen BBA DPMVisqueen Building Productsalso produce a DPM with BBAAccreditation, certificate number94/3009. Further details areavailable upon request or visitvisqueenbuilding.co.uk/dpmWWW.VISQUEENBUILDING.CO.UK | 0845 302 4758 29
Page 4 and 5: THE VISQUEEN Specifier's GUIDEThe V
Page 6 and 7: IMAGE ILLUSTRATES HIGH IMPACT STREN
Page 8: DAMP PROOF COURSESVisqueen Zedex CP
Page 14 and 15: DAMP PROOF COURSESVisqueen Preforme
Page 16 and 17: DAMP PROOF COURSESVisqueen Zedex HO
Page 18 and 19: DAMP PROOF COURSESVisqueen POLYETHY
Page 20 and 21: DAMP PROOF COURSESVisqueen GX HYDRO
Page 23 and 24: 26 Visqueen 100% Recycled Ecomembra
Page 25 and 26: Innovation and Investmentin Recycli
Page 27: P8REQUIRED COMPONENTSAvailable as a
Page 32 and 33: What gases andcontaminants are invo
Page 34: The Complete Solution- Visqueen’s
Page 37 and 38: CPDP53P20REQUIRED COMPONENTSAVAILAB
Page 41 and 42: GAS PROTECTION SYSTEMSVisqueen Gas
Page 45 and 46: CPDP53P88P8P60REQUIRED COMPONENTSAV
Page 48 and 49: GAS PROTECTION SYSTEMSVISQUEEN RADO
Page 50 and 51: visqueen Gasventing systemBackgroun
Page 52 and 53: GAS PROTECTION SYSTEMSSystem Design
Page 54 and 55: GAS PROTECTION SYSTEMSGEOCOMPOSITE
Page 56 and 57: IMAGE ILLUSTRATES INSTALLATION OF T
Page 58 and 59: tankingVisqueen Self Adhesivedamp p
Page 62 and 63: tankingVisqueen torchon tanking Mem
Page 64 and 65: tankingVisqueen GX Pre Applied Memb
Page 66 and 67: PROTECTA-DRAINtankingVisqueen Prote
Page 69 and 70: 70 Visqueen Urban Drainage Geomembr
Page 71 and 72: REQUIRED COMPONENTSAVAILABLE AS A D
Page 73: Aquaflow SC Membrane Aquaflow SC Me
Page 76 and 77: VAPOUR CONTROL LAYERSVisqueen VAPOU
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VAPOUR CONTROL LAYERSVisqueen VAPOU
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VAPOUR CONTROL LAYERSVisqueen VAPOU
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84 Lapping & Jointing86 Service Pip
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INSTALLATION ADVICESealing to cavit
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WWW.VISQUEENBUILDING.CO.UK | 0845 3
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mmx50m mmx33m 100mmx33m 150mmx10m 7
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FLOOR PROTECTIONwww.visqueenmegafil
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www.visqueenmegafilm.co.ukMEGABOARD
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EnvironmentalLandscapeSolutions
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Key Sectors;LandscapingUsed widely
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Project:Prendergast CP NewSchool 20
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P70 Visqueen URBANDRAINAGEGEOMEMBRA
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