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Dr.FixitsTerraceWaterproofingSolutions
Traditionalmethodsofwaterproofingare just that traditional!PidiliteConstructionChemicalsLtd.hasintroduced Dr. Fixit NewCoat and Dr. Fixit Torchshield, two products that offer comprehensivewaterproofingsolutions.
Untilnow,waterproofinghasbeendonewith typicalsystems, likebrickbatcoba, limeterracingand theMudFuska.Sometimes,tarfeltandbitumenarealsoused.Allthesemethodsarewoefullyinadequate,butalsohavecertaindisadvantages that can causedamage to the structureof thebuilding.Mostof thesesystemsputincreasedloadontheslab,theyaremoreforinsulationanddonotofferleakprooforwatertight solutions.As theyage,breaking themand redoing the samesystem is risky for the slab crackscausedintheslabincreasetheproblemofleakage.Alsotheexpertiselevelsarenotasgoodasintheoldendays.Theelementsandfoottraffictaketheirtollontheterracesurface.
Dr.FixitNewcoatandDr.FixitTorchshieldhavebeen formulatedafter taking intoaccount theweatherconditionsinIndia.
Dr. Fixit Newcoat is ideal for roof waterproofing that is old and needs to be redone. It is a highperformance, heavyduty weightless waterproofing system that can be applied over the existingwaterproofing system, without even breaking it. It comes in three different light colors to ensure thecustomergetsallthethreecoatings.Dr.FixitNewcoatdoesnotrequireanyadditionalprotectivesystemoveritandisidealforflatRCCroofs,evenroofssubjecttoheavyfoottraffic.Repairsontheexistingterracesurfaceandtheparapets,etc.mustbedonepriortothecoating,asDr.FixitNewcoatisthefinalsystem,togiveafinish.
Dr.FixitNewcoatisresistanttoalgae,mildewandefflorescence.ItbreatheseasilyandreflectsharmfulUVandinfraredraystoagreatextent.Highlyflexiblewithacrackbridgingabilityupto1.5mm,andexcellentbondingstrengthwithcementitioussubstrates,itisapplicableonallnewandoldflatandslopingRCCroofs.
Largeterraceslabshavedifferentneedsthansmallspanlabs.Largeterraceslabshavecontinuousspansandrequiretoughermembranes.Dr.FixitTorchshieldisa4mmthicktorchonmembrane,witha10yearlifeexpectancy.Thissystemisessentiallylaidoverascreedcourselaidtoslopeofatleast1in100.Itcanalsobesandwichedinbetweentheslopedcoursebelowandanoverlayingcourseofclaytilesandbeddingmortar.EvenslopedRCCroofsarerecommendedtobewaterproofedwiththissystem,asitisdifficulttocompact concrete in sloped roofs. Dr. Fixit Torchshield should be overlapped at different surfaces asrecommended.
The two systems have proved immensely useful in preventingwater seepage. It seems theworries ofhouseowners and builders are nearing their end. Finally, buckets can go where they belong in thebathroom.
TerraceWaterproofing
InIndia,TerraceWaterproofinghasalwaysbeendonewithverytraditionalmaterials.TypicallysystemslikebrickbatCoba,LimeterracingortheMudFuskatechniquearestillverymuchinvogue.Thesesystemshavebeenofferingwaterproofingwithsomeinsulationagainstheat.
Someoftheproblemsthatthesesystemshaveare:Heavyloadingontheslab
Cracksonthesurface,especiallyincaseofbrickbatcoba
Expertiselevelsofapplicationrequiredforlimeterracing/mudfuskanotasgoodasintheoldendays
Offermoreinsulationratherthanaleakprooforawatertightsystem
Astheyagebreakingthemandredoingthesamesystemisriskyfortheslabcrackscausedintheslabincreasetheproblemofleakage
Simplestepscanbetakenupfornewterracewaterproofingincaseofbothnew&existingterraceslabs.
Somepointsforwaterproofingcontractorshavebeenlistedasunder,toincreasetheirrateofsuccess,incarryingoutthewaterproofingjobsonterraces/roofs.
StructuralIssues
CauseofLeakage:1. CracksonthetopsurfaceofslabInjectiongroutingasrequired,largecracksrepairwithURPmodified
mortar
2. CracksonthebottomofslabduetoexcessdeflectionofslabStructuralconsultantsopinionmustbetakenifleakingcanbeaddressedwithahydrophobicPUfoaminjectiongrout
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3. CracksatcolumnsupportsStructuralconsultantsopinionmustbetaken
4. Excessporosityintheslab,badqualityconcreteResorttoInjectiongrouting
5. ExpansionjointintheslabPolysulphidesealantapplicationwithproperdetailing
6. InadequatedesignoftheslabStructuralengineersopinion
7. Spalling of concrete due to corrosion in the slabDetailed repair with catholic protection & repairmaterials
8. Cracksduetodifferentialsettlementofabuildingstructuralandsoilexpertsopinionmustbetaken
Asthecasemaybe,thesemustbeaddressedbeforewaterproofingjobistakenup.
NonStructuralIssues:
1. SlopenotproperSlopemustbeprovidedforwaterdrainage
2. InadequaterainwaterpipesProvidedrainwaterpipesasrequired
3. Parapet wall not in good conditionRepair parapet masonry/plaster using mortar added with w/pcompounds/polymerbondingagents
4. Internalcracks,honeycombs(finishedwithordinarymortar),porosity,etc.whichcannotbeseenbyeyepackusinginjectgroutattheplaceofleakagefromtoptobottom
5. Mechanical installations like cooling towers, AC units, etc., on the terraceFoundations must beexaminedandrepairedifrequired
6. Aggressiveclimaticconditionschooseandapplyprotectivecoating/WPsystem
7. ThermalextremesProvideinsulationtreatmentoverWPlayer.
DetailsontheProduct:
Newcoat
Waterproofcoatingforterrace
Dr.FixitNewcoatisaheavydutymicrofibrereinforcedacrylicbasedflexibleterracewaterproofcoating.Ithas been tested, approved & used by Housing Development Board of Singapore. Dr.Fixit Newcoat is athreelayer systemwith coats in different colors ensuring proper buildup of the thickness,making it areliablewaterproofingsystem.
Features&BenefitsBetterfilmthicknessprovides1mmdryfilmthicknessin3coatsascomparedto300400micronsin2coatsofotherproducts.
Highcrackbridgingabilitybridgescracksupto2mmwidthascomparedto0.5mmbyotherproducts
Hightensilestrength,tearresistence&bondstrengthwithcementitioussubstratesascomparedtoavailableproducts
GoodresistanceAgainstUV,Infradedraysandalgal&fungalgrowth
Easeinapplicationcanbeappliedbybrushorroller
Nontoxic,breathable&washable
Aestheticfinishavailableinpink,greenandgreycolorsfordifferentcoats.
Torchshield
Dr.FixitTorchshieldrangeofpolymermodifiedbitumenwaterproofingmembranesaremanufacturedfromrichbitumenandselectpolymersblendedtogethertoobtainexcellentheatresistance&coldtemperatureflexibility. The polymer modified bitumen is then coated on to a dimensionally stable nonwovenpolyester/fibre glass carrier to obtain high tensile strength, tear and puncture resistance. TheDr. FixitTorchshieldmembranesareavailableinbothSBS&APPmodifiedversions.
Features&BenefitsSelffinished,jointlessmonolithicmembranesprovideexcellentwatertightandvapourbarriersystem
Hightensile,tearandpunctureresistance
Cantakethermalandstructuralstresseseffectively,withoutanyfatigue
Laidquicklyandeasilysafeandenvironmentfriendly
Donotundergoearlyaging,thusprovidelonglifedurablemembrane
Easymelting&fixing,thussavingonusageofexpensivegases
Availablein1.5,2,3and4mmthicknessAPP/SBSmodifiedmembranerolls
Areasofapplication/ApplicationProcedure:
Newcoat
AllnewRCCflatandslopingroofs
Existingcementitiouswaterproofingtreatmentslikebrickbatcoba,concretescreeds,acryliccoatings,etc.
Torchshield
Reroofings
Roofswithfoottraffic
Roofswithoutfoottraffic
Undertiling
Basements
Roofgardens
Tunnelsandsubways
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Hydraulicworks/Swimmingpools
Pidilitehastrainedapplicatorstodothejobifrequired,buttheproductsareotherwiseeasytouseandcanbeusedbytheapplicators/contractorsetc.otherwiseaswell.
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