data sheet - Index S.p.A.

VAPORDIFFUSER/VSPECIAL REINFORCED ELASTOPLASTOMERIC POLYMER-BITUMENWATERPROOFING MEMBRANE WITH BITUMEN KNOBS ON THE UNDERSIDESTRENGTHENED FOR THE DIFFUSION OF HUMIDITY ON DAMP CONCRETESURFACES, OLD BITUMEN WATERPROOFING LAYERS, OR FOR ISOLATINGTHE WATERPROOFING LAYER FROM THE MOVEMENTS OF THE INSULATINGPANELSGRANTS LEED CREDITSCATEGORYSPECIALELASTOPLASTOMERICFOR SPECIFIC USES1EPSBubbles on thecovering laid withcomplete adhesiondue to humiditytrapped in theconcrete supportWATERPROOFFLAT OR SLOPING ROOFON DAMP CONCRETE SUPPORTCHARACTERISTICSDRAININGReazione alfuocoREACTIONTO FIREPROBLEMECO GREENASBESTOSFREEFLAT OR SLOPING ROOFON OLD BITUMEN COVERINGTARFREEENVIRONRMENTALCHLORINEFREENONRECYCLABLE DANGEROUSWASTEEXHAUSTEDOIL FREETORCHAPPLICATIONMETHOD OF USEHOT AIRAPPLICATIONNAILINGHOW TO DRAIN HUMIDITY WHENREFURBISHING OLD WATERPROOFINGLAYERS OR ON UNEVEN CONCRETESURFACES EVEN IN WINDY AREASAND ON SLOPING SURFACESThe total adhesion of a waterproof layer on damp concrete or oldbituminous substrates in bad conditions may lead to the formation ofblisters which can have a negative influence on the solidity of the layerin time. Spot bonding through perforated sheets may not be useful andthe waterproof layer risks to be insufficiently bonded and may be blownaway in the first storm. Spot bonding is also used to distribute andtherefore attenuate the mechanical stress of the substrate.Waterproofing membranes2SOLUTION ON DAMP CONCRETE SUPPORT31. Damp concrete support2. VAPORDIFFUSER/V3. Standard mineral finish membrane2VAPORDIFFUSER/V is the membrane designedby Index to resolve the problem of vapourdiffusion while guaranteeing an optimaladhesion in time, also on uneven surfaces.The underside of VAPORDIFFUSER/V hasa series of large bitumen knobs coveringapproximately 35% of the surface with theexception of the overlapping side strip.The knobs protrude from the membrane 3.5÷4mm and once they have been heated with thetorch, become thick adhesive bitumen knobsthat adapt to the uneven substrate, forming astrong bond.The membrane adheres on the surface supportedby the bituminous knobs and an interspaceis formed between the waterproof layerand the substrate with a series of effectiveand diffusing channels for the humidity whichare much more efficient than those obtainedusing traditional perforated sheets.When torched, the supporting surface ofthe knobs increases slightly until it forms anadhesive area of approximately 40% of thesupporting surface.1SOLUTIONSOLUTION ON OLD BITUMEN COVERING31. Old bitumen covering2. VAPORDIFFUSER/V3. Standard mineral finish membrane21The adhesive surfaceis greater thenthat which can berealised with perforatedsheets (notmore than 20%) andfurthermore all ofthe bitumen knobsadhere, while withthe installation ofperforated sheetson uneven surfacesthere is the risk thatt h e w a t e r p r o o f -ing layer will not adhere to a great deal ofthe substrate and be blown away by strongwinds.The VAPORDIFFUSER/V knobs are closer togetherthan the holes in perforated sheets andthe adhesion and the mechanical stress fromthe substrate are more uniformly distributed.VAPORDIFFUSER/V is a very thick membranewhich forms a waterproof layer ofroughly 5 mm after installation (the thicknessof a perforated sheet is less than 1.5 mm) andso the layer is isolated better from the movementsof the substrate.Furthermore, the greater adhesive surfacemakes it possible to install VAPORDIF-ADVANTAGES• More resistant to wind than perforatedsheets.• Air-space for greater diffusion.• Can be laid on sloping roofs withoutnailing.INTENDED USE OF “CE”MARKING SPECIFIEDACCORDING TO THEAISPEC-MBP GUIDLINESEN 13707 - REINFORCED BITUMENSHEETS FOR ROOFWATERPROOFING• Under layer or intermediate layer inmulti-layer systems without permanent heavysurface protection- VAPORDIFFUSER/V 4 kg/m 2FUSER on steeper sloping surfaces (up to40%), without mechanical fixing.VAPORDIFFUSER/V is strengthened withreinforced rot-proof fibreglass mat and bothsides are coated with Flamina, a plastic filmthat melts when torched.APPLICATION FIELDSVAPORDIFFUSER/V is used for both newconstructions and renovation work, on dampsurfaces where blisters can form in the waterprooflayer. It can be installed as a visiblelayer directly on concrete or to renovatean old bituminous layer which is no longerwaterproof. The water vapour is drainedthrough aerators which are easy to install inthe VAPORDIFFUSER/V membrane.VAPORDIFFUSER/V can also be used onsubstrates such as certain types of insulatingpanels that can move and damage the waterprooflayer.(See following)V1 st DIVISION1 st LINE

ReinforcementStandardTTECHNICAL CHARACTERISTICSVAPORDIFFUSER/VFibreglassWeightRoll sizeEN 1849-1EN 1848-1±10%≥4 kg/m 21×10 mWatertightnessEN 1928 – B≥60 kPaMaximum tensileforce L/TElongation L/TEN 12311-1EN 12311-1–20%–15% V.A.300/200 N/50mm2/2%Resistance to tearing(nail shank) L/TFlexibility to lowtemperatureFlow resistance athigh temperatureReaction to fireEuroclassExternal fireperformanceEN 12310-1EN 1109EN 1110EN 13501-1EN 13501-5–30%≤≥70/70 NNPD120°CEF roofCompliant with EN 13707 in terms of the resistance factor to steam penetration for reinforced polymer-bitumen membranes, the value of µ = 20 000 may be considered, unless declared otherwise.(See previous)METHOD OF USEAND PRECAUTIONSVAPORDIFFUSER/V should be torch bondedto the substrate along with the overlapswhich are ready for bonding in the longitudinaldirection of the roll.Crosswise the membranes are abutted andnot overlapped.When the membranes have been installed, astrip of smooth membrane (Defend 3, NovaV 3), at least 14 cm wide, should be bondedover the traversal joints.the numerous possible uses and the possible interference of conditions orelements beyond our control, we assume no responsibility regarding the resultswhich are obtained. The purchasers, of their own accord and under their ownresponsibility, must establish the suitability of the product for the envisaged use.COMPOSITION OF THE MEMBRANEVAPORDIFFUSER/VFLAMINA. Plastic protection film helping prevent coils from sticking to the roll.As it withdraws under the action of the flame right during its installation, it signalsthe best melting point in order to correctly glue the membrane to the brackets andrises. When not heated, it can be used as a sliding layer.Heat activatedbubbles(hot-melt)Elastoplastomeric Reinforced Elastoplastomericpolymer bitumen with polymer bitumenfibreglassSelvedge Flamina FlaminaPRODUCT FINISHINGThe figures shown are average indicative figures relevant to current productionand may be changed or updated by INDEX at any time without previous warning.The advice and technical information provided, is what results from our bestknowledge regarding the properties and the use of the product. ConsideringFLAMINA WITH BITUMEN KNOBS.• FOR ANY FURTHER INFORMATION OR ADVICE ON PARTICULAR APPLICATIONS, CONTACT OUR TECHNICAL OFFICE • IN ORDER TO CORRECTLY USE OUR PRODUCTS, REFER TO INDEX TECHNICAL SPECIFICATIONS •S.7 - 1.000 - 02/2012 ingInternet: www.indexspa.itFor technical and commercial information: tecom@indexspa.itAccounting department: index@indexspa.itExport department: index.export@indexspa.itVia G. Rossini, 22 - 37060 Castel D’Azzano (VR) - Italy - C.P.67 - Tel. (+39)045.8546201 - Fax (+39)045.518390© INDEX“GBC Italia” Associated