Download the PermaTEC Design Guide - IKO

CI/SfB (47) Ln2January 2011HOT MELT WATERPROOFINGDESIGN GUIDEA guide to roofing and structural waterproofing

2 PERMATEC DESIGN GUIDEThis page and opposite:Ropemaker Place, LondonMACE, 2010“I first worked with hot melt waterproofing on theBroadgate Development in 1988, and I’ve been usingit successfully ever since.”Bob Gordon, Chief Engineer, MACE

PERMATEC DESIGN GUIDE 3ContentsComplete structural waterproofing 4-5The versatile roofing solution 6Environmental benefits 7Why specify an inverted roof? 8-9Design considerations 10-13Simple solutions for difficult problem areas 14-15Inverted ballasted roof specification 16Podium deck specification 17Intensive green roof specification 18Extensive green roof specification 19Biodiverse green roof specification 20Structural waterproofing specification 21Typical details 22-27System components 28-29Setting the Standard in Innovation,Quality and Service30-31Images courtesy of Frosts Landscape Constructionwwww.ikoroofing.co.uk

4 PERMATEC DESIGN GUIDEComplete structural waterwww.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 5proofing with PermaTECExtensive green roofLightweight green roof system, usuallyincorporating sedum mats or sedum plug plantsand minimal growing medium (concrete, metal orcomposite decks). See page 19.Inverted ballasted roofMost popular hot melt system build up, usuallyinstalled onto a concrete deck (alternative deckscan be used). See page 16.Inverted roof on metal deckwith cement boardRecent addition to the list of acceptable structural decks.Intensive green roofHeavyweight green roof system, usually incorporatingbushes, trees, grass etc, and an appropriate depth ofgrowing medium to support them. See page 18.Podium deckOften used over undercroft car parks to retail andresidential buildings, usually uninsulated. See page 17.Substructure waterproofingVertical surface waterproofing to car parks etc. Also usedunderneath floor slabs. See page 21.wwww.ikoroofing.co.uk

6 PERMATEC DESIGN GUIDEPermaTEC hot melt waterproofing -the versatile roofing solutionHot melt waterproofing has asuccessful track recordstretching back over 40 years.Today, many prestigiousbuildings in the UK haveincorporated a hot meltsystem, thanks to itsoutstanding waterproofingperformance and unrivalleddesign flexibility.PermaTEC is a hot applied membrane whichis manufactured from a specially formulatedcombination of refined bitumen, syntheticrubbers, fillers and other additives. It ismelted in a purpose built machine and isapplied to a prepared structural deck in twonominal 3mm coats, providing a monolithicwaterproofing system. It is suitable for use asthe waterproofing layer in most new build flatroofing applications, when covered bysuitable protection or when used in aninverted roof or green roof specification.Key benefitsLifetime performance• Formulated to last for the lifetime of thebuilding or structure on which it is installed• Long-term waterproofing integrity• No future replacement costsFully bonded and monolithic• Applied as a liquid directly to the deck• No risk of water tracking below themembrane• Completely seamless so no possibility of lapfailureFlexibility of design• No screeds to falls required meaning lesscost, weight and time• Unaffected by standing water, dilute acidsand fertilisers• Effective detailing to difficult penetrationslike ‘I’ beams, posts etc.Safe, speedy installation• No two part system to mix• No on-site curing requirements• Solvent-free formulationIdeal for demanding site conditions• Excellent low temperature flexibility andadhesion• Can be readily applied in temperaturesdown to -18ºC on a clean, dry, frost-freesurface• Work can proceed during winter months,minimising lost construction time• PermaTEC is not affected by rain, snow orfrost immediately after its application• Can be walked on immediately afterinstallation of the systemQuality workmanship on every project• PermaTEC is only installed by trained andbadged operatives• Dedicated IKO engineers monitoring all siteinstallations• Long-term, meaningful guarantees forultimate peace of mind“Hot melt has risen to become thefirst choice for many specifiersseeking a reliable, long-termwaterproofing solution.”www.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 7Environmental benefits of PermaTECWe all have a fundamentalresponsibility to reduce to anabsolute minimum the carbonfootprint of any product andsystem that we use. Everyonein the construction industryshould seek to sourceproducts and systems ‘locally’on a best value basis.IKO is determined to set new standards ofexcellence in the efficiency and performanceof hot melt systems in the UK – coveringboth manufacture and installation.In 2002, IKO was the first to offer safer,more convenient product packaging to theroofing contractors. This resulted in the NorthAmerican manufacturers changing from 45gallon steel oil drums to thick cardboardboxes and plastic wrappers.In 2008, IKO was the first to offer zerowrapper waste and the first to develop lowerapplication temperatures. In 2010, itcontinued to innovate the market bydeveloping a hot melt compound with builtinanti-root protection.IKO has also lobbied the UK manufacturers ofhot melt machines to develop more effectiveequipment, to enable the material to bemelted faster and at lower temperatures, thusreducing energy consumption on site. IKOunderstands that it has a responsibility tocontinually develop its products and systemsto minimise their impact on the environment.First to manufacture in the UK• Provides the most efficient carbonfootprint delivery miles• IKO manufactures all systemcomponents• Less logistics worries - IKO delivers fromfactory to site in one operation• Delivery miles kept to minimum• No need to buy full containers• No need for expensive storage andreloading• No lengthy lead timesZero wrapper waste• Significantly less on-site waste anddisposal costs, 98.5% less thencardboard boxes• Increased site efficiency - no openingand disposing of cardboard boxes• Environmental status improved for clientsand specifiers• Helps contractors to achieve Site WasteManagement PlansLow melt technology• Application temperature reduced by 20%• Saves preparation time: material can beready sooner• Reduces energy consumption• Melter machines can be more productive• Material remains ‘workable’ longer• Fully compliant with REACH regulations“PermaTEC was the first hot meltsystem manufactured in the UK.”PermaTEC Anti-RootPermaTEC Anti-Root is the world's firstmonolithic 'anti-root' hot melt structuralwaterproofing system. The latest innovationfrom IKO, eliminating the need for a separateanti-root membrane, thereby making thespecification and installation process bothsimpler and more cost-effective. For addedreliability and peace of mind the PermaTECAnti-Root compound provides a nominal6mm thick monolithic barrier system withoutside or end laps.Less rolls, fewer pallets, less transport,less hoisting, more savings.wwww.ikoroofing.co.uk

8 PERMATEC DESIGN GUIDEWhy specify an inverted roof?Cold roofsTypical specificationTimber joists supporting plywood panels. In the past tongued andgrooved timber boarding or chipboard were used. Waterproofingsystems (built up bitumen felt, mastic asphalt, single ply membranes)are installed (using various means of attachment) to the top of thetimber deck. Foil backed plasterboard to the soffit, with fibreglassinsulation above and an air space above the insulation.Key considerationsExternal problems for cold roofs include extremes of temperatures,ultra violet, weather (rain, wind, snow etc), fire and physical damage!Internal problems for cold roofs include vapour driving through theplasterboard, through the insulation into the air space under the timberdeck. In winter, warm moist air vapour comes into contact with theunderside of the cold deck and, if not adequately ventilated,condensation forms and drops back onto the top of the insulation, andeventually onto the top of the plasterboard causing damp stains to theunderside.Warm roofsTypical specificationThere are three preferred structural decks, concrete, timber (plywood)and the most popular being profiled galvanised metal deck on steelpurlins. These deck systems are usually installed flat. Metal deckingand plywood could be installed to falls at extra cost.Warm roofs normally require a vapour control membrane (varioustypes available) to be installed (by various means of attachment) to thetop of the decking system.Insulation material (e.g. rigid polyurethane, mineral wool etc.) isinstalled using various means of attachment to the top of the vapourcontrol membrane.Waterproofing systems (built up bitumen felt, mastic asphalt, single plyand cold applied liquids) are installed over the insulation layer.Key considerationsExternal considerations for warm roofs are the same as those for coldroofs, due to the waterproofing system being totally exposed.Furthermore the compressive strength of most of these types ofinsulations is unsuitable for use where installations involve heavy loadsand impact damage.There are less internal concerns for warm roofs than cold roofs, butextra care must be taken to ensure that the vapour control membraneis sealed at all laps and abutments/penetrations, so that vapour cannotpass through any gaps into the insulation zone, therby increasing therisk of condensation.www.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 9Inverted roofsTypical specificationMost inverted roofs are installed on concrete decks with zero falls(completely flat), alternative systems like plywood or calcium silicateboards can be installed onto timber joists or metal deck substrates, ormetal/insulation composite panels can be used. Waterproofing systems(built up bitumen felt, mastic asphalt, single ply, cold applied and hotmelt) are installed (using various methods) to the deck. Hot melt is fullybonded to the deck.To comply with relevant codes of practice and BBA certification most ofthe waterproofing systems require falls to be introduced either within thestructure or using a screed. An inverted roof using hot melt waterproofingdoes not require falls. The only insulation material suitable for an invertedroof system is extruded polystyrene (XPS), which is loose laid onto the topof the waterproofing system (some waterproofing membranes need to beisolated from the XPS). This type of insulation is extremely strong with acompressive strength which can support at least 130 kN/m 2 (13 tonnesper m 2 ).A proprietary separation membrane is installed loose laid on top of theinsulation to improve the overall U-value of the insulation system. Theloose laid insulation and separation layer needs to be weighed down toprevent it being blown off the roof. Ballasting materials are used such asround washed stones or concrete pavers on supports, the minimum ballastweight required is 80kg/m 2 .Key considerationsAlthough one of the main benefits of inverted roof design is that thewaterproofing membrane is totally protected, there are two importantdesign factors to be considered.Firstly, the structural deck should be capable of supporting the weightloading of an inverted roof system, which would usually be between95kg/m 2 and 140kg/m 2 .Secondly, it is essential to ensure that the waterproofing system is fullytested (usually electronically or flood test) for damage prior to theinstallation of the insulation and loading coat (ballast/pavers/green roof).Failure to discover and repair any damage could lead to the timeconsuming and costly removal of the loading coat and insulation to accessthe waterproofing system.“One of the main advantages of this form of construction is its simplicity. With theweatherproofing acting also as a vapour barrier, the need for complicatedcalculation can often be avoided. In addition there are advantages in speed ofweatherproofing, ease of drying out, avoidance of entrapped moisture, in-builtprotection of the weatherproofing and the ability to upgrade the insulationwithout disturbing the weatherproofing.This system is preferred to other forms.”Government’s Property Service Agency - Technical Guide to Flat Roofing, Section 2.11wwww.ikoroofing.co.uk

10 PERMATEC DESIGN GUIDEDesign considerations (inverted roofs)Design FactorsPodium deck waterproofing -Landmark, LondonIt is essential that designersof inverted flat roofs considermany aspects before issuingtheir specifications.Apart from practical andperformance criteria,compliance with the latestregulations and codes ofpractice should be achieved.There are at least fourfundamental sectors toconsider when designing aninverted flat roof:1. Design Factors(a) Falls(b) Drainage(c) Thermal Design(d) Structural Movement(e) Wind(f) Fire2. Structural Decks3. Choice of Waterproofing Systems4. Maintenance and RepairsFallsOwing to the fact that some liquidwaterproofing systems (hot or cold applied)can be installed on roof structures with‘completely flat’ (zero) falls, it is important toachieve adequate drainage to ensure effectivelong term performance of all the componentsof an inverted roof.BS 6229: 2003: Section 7.2, Minimumfinished falls (see below) refers to theminimum finished falls for specific flat roofwaterproofing materials:The section relating to liquid waterproofingsystems (hot and cold applied) refers to a subclause: “For certain specialist systemsdesigned solely for buried applications, suchas garden roofs, podia, and some car parks,specific reference should be made to themanufacturer’s documented advice and BBAcertification.”Example: By referring to the BBA CertificateNo. 03/4009 (PermaTEC Monolithic Hot MeltWaterproofing System), Product Sheet 1,Section 3.1 provides the followinginformation: “The PermaTEC Hot-AppliedMonolithic Membrane System is satisfactoryfor use on flat, including completely flat,roofs with limited access in either (a) awaterproofing layer in inverted roofspecifications (b) a waterproofing layer in aprotected roof specification, e.g.covered bypavers or other suitable protection (c) awaterproofing layer in intensive andBS 6229: 2003: Section 7.2, Minimum Finished FallsCoveringbiodiversity roof garden or extensive greenroofs.” Section 3.3 provides the followinginformation: “Flat roofs are defined for thepurpose of this Certificate as those having aminimum finished fall of 1:80. Pitched roofsare defined as those having falls in excess of1:6. Completely flat roofs are defined for thepurpose of this certificate as those having afinished fall of less than 1:80.”N.B. If falls are required they can be provided in thestructural deck at the initial design and constructionstage, or by use of a suitable screed.DrainageIf inverted roofs are to be designed with‘completely flat’ structural decks it is essentialto provide adequate drainage for the roofareas, considering any deflection which maytake place.Drainage specialist and the manufacturers ofroof drainage systems (e.g. ACO, Wade etc)should determine the amount, type andlocation of the rainwater outlets required tocope with the projects ‘local’ rainfallconditions, in accordance with theappropriate code of practice.Rainwater outlets used in inverted roof designshould be compatible with the waterpoofingsystems used. Hot melt systems require ametal clamp ring type, and they could begravity or syphonic in performance.N.B. When designing ‘completely flat’ roofs it isadvisable to consider the inclusion of overflow outlets,especially to roof areas which are not regularly visited.Minimum finished fall at any pointAluminium 1:60Copper 1:60Zinc 1:60Lead sheet 1:80Built-up bitumen sheet 1:80Mastic asphalt 1:80Single ply membranes 1:80Liquid waterproofing systems (hot or cold applied)* 1:80N.B. These recommendations are applicable both to the general area of the roof and to any formed internal gutters.*For certain specialist systems designed solely for buried applications, such as garden roofs, podia, and some carparks, specific reference should be made to the manufacturer’s documented advice and BBA certification.www.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 11Podium and Green Roof DrainageInverted roof waterproofing systems are alsoused in podium and green roof designs,where the design of drainage or waterretention (green roofs) is especially important.Drainage specialists, manufacturers ofdrainage systems, hard and soft landscapingspecialists should be consulted to enable asuitable ‘system’ to be designed.Thermal DesignThermal design is concerned with the flow ofboth heat and vapour through the roofconstruction, and the effect of these on theperformance of the roof and the variouscomponents of the roofing systems.The designer has two separate areas ofconsideration, the amount of thermalinsulation required to control heat loss andthe amount of insulation required to controlcondensation.Inverted roof construction is different to thetraditional warm roof (vapour control layer,insulation and waterproofing material), theprincipal thermal insulation is placed abovethe waterproofing covering. The system isalso referred to as ‘protected membrane’ or‘upside down roof’.Due to the insulation material being placedabove the waterproofing covering, it needs tobe unaffected by moisture. There is only onetype of insulation which is able to fit thecriteria, extruded polystyrene (XPS), which isa closed cell construction to prevent moistureuptake.Further information about XPS insulation canbe obtained from manufacturers such as DowBuilding Solutions at www.building.dow.com.Vapour Control (Condensation Risk)The air in a building normally contains morewater vapour than the external air and so hasa higher vapour pressure. This creates avapour drive from the areas of high pressureand low pressure and therefore the watervapour will try to escape by all availableroutes to the low pressure conditions outsidethe building.In cold weather the temperature under thewaterproofing will fall and in the warm roofbuild ups create a zone in the roof structurewhere the temperatures are below the dewpoint. Moisture will condense in this zone toform interstitial condensation. Wheninterstitial condensation is occurring, thevapour pressure in the relatively coldcondensation zone will be less than thevapour inside the building and the resultingpressure difference causes a vapour drive intothe zone of condensation.Inverted roof structures, especially using fullybonded monolithic waterproofing systems likePermaTEC hot melt are not affected in thesame way as warm roof structures. Moisturemovement in the insulation layer of aninverted roof are virtually unaffected byinternal conditions. Below the level of thewaterproofing (fully bonded to the top of thestructural deck) moisture vapour from insidethe building will flow in and out of the roofcomponents as a result of the humiditychanges inside the building. But thetemperature in the roof components will bemaintained above the dew point, andinterstitial condensation will not occur.Interstitial condensation analysis calculationscan be obtained from manufacturers of XPSinsulation.Structural MovementAll flat roofs comprise a number of elementswhich expand, contract or move in relation toeach other and therefore subject thewaterproofing element to stress.Movement is primarily caused by thermalexpansion and contraction of the roofstructure or insulation, or in the case ofhygroscopic materials the expansion andcontraction as a result of wetting and drying.Unlike warm roof structures where thewaterproofing and insulation are exposed toextremes of temperatures, the waterproofingsystem in an inverted roof is in a protectedposition underneath the insulation and ballastmaterials, and therefore suffer far less stress.The main area of design consideration ofstructural movement in inverted roofs isdetailing the joints or cracks in the structuraldeck, joints between varying constructionmaterials (concrete to blockwork upstandsetc.) and the use of appropriate highperformance expansion joint systems overmovement joints.WindProtection against wind forces should be oneof the fundamental principles behind goodroofing design. When wind hits a building, itis deflected to generate a positive pressure onthe windward face, and it accelerates roundthe side of the building and over the roof,leading to a reduced or negative pressureover the roof and the lee of the building.With an inverted roof specification theinsulation is laid loose, and the security of theentire system depends on the loading coatwhich may be a minimum 50mm of gravelballast, 50mm concrete paving and recently,green roof systems. The weight of theloading coat should prove adequate to resistwind damage, and also guard againstfloatation of the insulation if significantponding occurs.Wind loading calculations and advice can beobtained from insulation manufacturers suchas Dow Building Solutions.Dead loads and imposed loads should becalculated in accordance with therecommendations of BS EN 1991-1: 2002,BS EN 1991-1-3: 2003, BS EN 1991-1-4:2005.FireThe various statutory regulations consideringthe performance of a flat roof in respect ofexternal and internal fire conditions, arebased on performance tests set out in theBritish Standard 476, ‘Fire Test’ on BritishMaterials and Structures.The ultimate external fire rating in accordancewith BS 476: Part 3: 1975, is EXT. F.AA. Thestone ballast or concrete paving loading coatused in inverted roof structures provide anEXT. F.AA rating.wwww.ikoroofing.co.uk

12 PERMATEC DESIGN GUIDEDesign considerations (continued)Structural DecksThe structural deck provides the primarysupport for the roofing system. It must resistdead loads, live loads and wind loads asspecified in BS EN 1991-1: 2002, BS EN 1991-1-3: 2003, BS EN 1991-1-4: 2005.There are a number of structural decks whichcan be used in inverted roof construction.The most common is in-situ concrete, butthere are many other options to consider:• Precast concrete deck• Metal deck with cement particle board• Metal deck with plywood board• Plywood• Structural metal/insulation compositepanelsGiven the varied choice of structural decksavailable for inverted roof design, it isessential that the surface of the deck is of asuitable finish to accept the waterproofingsystem, for example – concrete deck with‘easy float finish’. Please refer towaterproofing system manufacturers fordetails.Waterproofing OptionsFully bonded monolithic hot melt systems arethe preferred choice of many specifiers andcontractors involved with new build invertedroof constructions in the UK. There are,however, a number of other suitablewaterproofing options for this type ofapplication. These include polymeric singleply, reinforced bituminous membranes, masticasphalt and cold applied liquid systems, whichare all also available from the IKO Group.Metal deck wuthcement boardConcretewww.ikoroofing.co.ukStuctural metal/insulationcomposite panels

PERMATEC DESIGN GUIDE 13Maintenance and RepairsBS 6229 2003 gives guidance on themaintenance and inspection of flat roofs. Flatroofs should be designed to avoid the needfor maintenance as far as possible, butinevitably some items of maintenance willoccur. As a matter of good housekeeping, thebuilding owner should arrange for aninspection of all roof and details at least oncea year. A simple inspection by maintenancepersonnel will suffice, but a number ofmanufacturers or specialist contractors canprovide maintenance inspections on anannual contract. Many roofing systemguarantees require annual inspections.Owing to the design and nature of aninverted roof, there are very few items toinspect or maintain. It is essential thatrainwater outlets are inspected and cleanedon a regular basis (at least twice per year)and kept free of debris, which could seriouslyaffect the performance of the roof. Exposedwaterproofing details at upstands andpenetrations (pipes etc.) should be inspectedfor damage and repaired by the installingroofing contractor, so as not to invalidateany guarantee which may be in place.The remainder of the waterproofing andinsulation is protected by the loading coat(stone ballast or concrete paving, green roofsetc.), which should be checked for damage ordisplacement.Note: In the event that the waterproofingsystem is covered by a guaranteeprogramme, it is essential that the buildingowner or their representatives do notperform any alterations or repairs to theoriginal waterproofing without the approvalof the guarantor. Failure to comply willinvalidate the guarantee and could causefailure of the original waterproofing systemif inappropriate repair materials are used.Riverbank House, Londonwwww.ikoroofing.co.uk

14 PERMATEC DESIGN GUIDESimple solutions to difficult problemsThe majority of failures to any roof waterproofing system are due to physical damage to thewaterproofing material, or the inability to successfully waterproof difficult detail areas andvulnerable locations.Owing to the many unique advantages of hot melt structural waterproofing systems, a numberof simple detailing solutions are available to effectively waterproof difficult forms and otherproblem areas. Many of these installation techniques could not be considered with other flatroof waterproofing systems.Floating plinth detailOne of the major problems of flat roof design is the correct placement of roof mounted plantand the issue of cold bridging of the concrete plinths supporting the plant. Hot melt roofingsystems provide the roof designer unlimited freedom to support the plant on concrete plinthswhich are cast onto the top of the XPS insulation and separation layer to provide an idealsubstrate and no cold bridging.Installation TechniqueThe PermaTEC hot melt system is fully bonded to the structural deck; the XPS insulation andseparation layer is installed onto the top of the waterproofing and then a concrete plinth(approx 150mm deep) is cast onto the top of the 300 kpa XPS insulation which is capable ofsupporting a minimum load of 13 tonnes/m 2 (alternative compressive strengths are available tosupport up to 25 tonnes/m 2 . The concrete plinths can be installed or removed withoutdisturbing the waterproofing system.www.ikoroofing.co.ukNote: The use of a drainage layer is optional.

PERMATEC DESIGN GUIDE 15Wall onto hot melt detailThe provision of an effective and secret upstand waterproofing detail can be created behind awall using hot melt structural waterproofing.Installation TechniqueThe PermaTEC hot melt system is installed to the horizontal and vertical substrates andterminated 150mm above the finished roof level. A 500mm wide sacrificial layer ofPermaGUARD-M mineral surfaced protection sheet is then applied to the top of the installedPermaTEC system prior to the construction of the wall.Note: The use of a drainage layer is optional.Posts/balustrades detailMany kinds of posts are included in flat roof designs. Ballustrades, louvre supports, mansafesystems etc require the mechanical attachment of a base plate to the structural deck to securethe post system. These plates and posts can be simply waterproofed using the hot melt ‘pitchpocket’ detail.Installation TechniqueA once bent galvanised metal angle (usually 50mm high and 75mm long) is usuallymechanically fastened to the deck approximately 20mm away from the vertical post. The75mm horizontal leg of the metal angle is covered flashed with PermaFLASH-D150 bonded inPermaTEC compound. The full PermaTEC system is dressed to the metal angle. PermaTECcompound is poured into the inside of the metal angle frame to provide a 50mm deep fill.PermaGUARD-F protection sheet is dressed over the completed detail.Note: The use of a drainage layer is optional.www.ikoroofing.co.uk

16 PERMATEC DESIGN GUIDEInvertedballasted roof1. Concrete deck primed with PermaTEC Primer2. 2 coats of PermaTEC ECOWRAP incorporatingPermaFLASH-R reinforcement3. PermaGUARD-F protection layer4. Dow SLX/SLA extruded polystyrene insulation board(or equal)5. Dow M-K separating layer (or equal)6. Minimum 50mm layer of 20-40mm rounded washedaggregate7. Minimum 50mm thick paving slabs on proprietarysupportsSpecification (NBS J31 available upon request)Substrate preparationThe surface of the substrate (concrete, plywood, calcium silicateboard, metal/insulation composite etc.) should be suitably preparedto accept the PermaTEC fully bonded system. Joints, cracks orinterfaces between different substrate materials should be detailed inaccordance with PermaTEC Standard Drawings and PermaTECNBS J31.MembraneUsing a suitable spreader or squeegee, the first coat of hot PermaTECcompound is applied to the prepared substrate at a nominal coatthickness of 3mm. The PermaFLASH-R polyester reinforcement isbrushed into the PermaTEC compound whilst it is still hot. All laps inthe PermaFLASH-R should be at least 75mm wide and fully sealedwith the PermaTEC compound. The second coat is applied in thesame manner ensuring complete coverage of PermaFLASH-R at thenominal coating thickness of 3mm. The second coat of PermaTECmust be protected.ProtectionPermaGUARD-F sand surfaced bitumen membrane is the standardprotection layer. It is applied directly to the second coat of PermaTECwhilst it is still hot and tacky. It is used on the main horizontal areawhich is to be subsequently covered with a range of systemcomponents such as insulation, separation layer and loading coat(stone ballast, concrete paving etc). It is also used on unexposeddetail items. The PermaGUARD-F protection layer should be brushedinto the hot PermaTEC as quickly as possible ensuring no air pockets.Laps in PermaGUARD-F to be minimum 75mm and sealed using hotPermaTEC compound.PermaGUARD-M slate surfaced bitumen membrane is used onexposed upstand details. It is applied to the second coat ofPermaTEC ensuring no air pockets. Laps in PermaGUARD-M to beminimum 75mm secured by controlled torch application and a neatbead of bitumen must be extracted from all lap joints.DetailingRainwater outlets and penetrations in the roof waterproofing systemshould be detailed in accordance with PermaTEC Standard Drawingsand PermaTEC NBS J31.System componentsA standard PermaTEC inverted roof system will include a range ofsystem components including: XPS insulation (thickness inaccordance to “U” values requirements), separation layer andloading coat (stone ballast or concrete paving).www.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 17Podium deck1. Concrete deck primed with PermaTEC Primer2. 2 coats of PermaTEC ECOWRAP incorporatingPermaFLASH-R reinforcement3. PermaGUARD-F protection layer4. IKO Plasdrain drainage layer5. Sand/cement sub-base6. Brick paviours/concrete slabsSpecification (NBS J31 available upon request)Substrate preparationThe surface of the substrate (usually concrete) should be suitablyprepared to accept the PermaTEC fully bonded system. Joints, cracksor interfaces between different substrate materials should be detailedin accordance with PermaTEC Standard Drawings and PermaTECNBS J31.MembraneUsing a suitable spreader or squeegee, the first coat of hot PermaTECcompound is applied to the prepared substrate at a nominal coatthickness of 3mm. The PermaFLASH-R polyester reinforcement isbrushed into the PermaTEC compound whilst it is still hot. All laps inthe PermaFLASH-R should be at least 75mm wide and fully sealedwith the PermaTEC compound. The second coat is applied in thesame manner ensuring complete coverage of PermaFLASH-R at thenominal coating thickness of 3mm. The second coat of PermaTECmust be protected.ProtectionPermaGUARD-F sand surfaced bitumen membrane is the standardprotection layer. It is applied directly to the second coat of PermaTECwhilst it is still hot and tacky. It is used on the main horizontal areawhich is to be subsequently covered with a range of systemcomponents such as drainage layer, sand and cement bedding andpedestrian paving. It is also used on unexposed detail items. ThePermaGUARD-F protection layer should be brushed into the hotPermaTEC as quickly as possible ensuring no air pockets. Laps inPermaGUARD-F to be minimum 75mm and sealed using hotPermaTEC compound.PermaGUARD-M slate surfaced bitumen membrane is used onexposed upstand details. It is applied to the second coat ofPermaTEC ensuring no air pockets. Laps in PermaGUARD-M to beminimum 75mm secured by controlled torch application and a neatbead of bitumen must be extracted from all lap joints.PermaGUARD-HDPB (Heavy Duty) or PermaGUARD-PB protectionboards can be used to provide additional protection to thewaterproofing system. They are installed butt-jointed to the secondcoat of PermaTEC compound, ensuring that no air pockets arepresent. Joints are taped over with 75mm reinforced adhesive tape.Note: The use of a drainage layer in podium deck design is highlyrecommended, as it provides important lateral drainage whilst alsopreventing the sand and cement bedding from becoming saturated.DetailingRainwater outlets and penetrations in the roof waterproofing systemshould be detailed in accordance with PermaTEC Standard Drawingsand PermaTEC NBS J31.System componentsA standard PermaTEC podium deck system will include a range ofsystem components including: drainage layer to suit loading, sandand cement bedding and pedestrian paving.wwww.ikoroofing.co.uk

18 PERMATEC DESIGN GUIDEIntensive green roof1. Concrete deck primed with PermaTEC Primer2. 2 coats of PermaTEC Anti-Root incorporatingPermaFLASH-R reinforcement3. PermaGUARD-F protection layer4. Dow SLX/SLA extruded polystyrene insulation board(or equal)5. Dow M-K separating layer (or equal)6. IKO Plasfeed drainage/moisture retention layer7. IKO Growing Medium8. Shrubs and plant finishesSpecification (NBS J31 and NBS Q37 available on request)Substrate preparationThe surface of the substrate (concrete, plywood, calcium silicateboard, metal/insulation composite etc.) should be suitably preparedto accept the PermaTEC Anti-Root fully bonded system. Joints, cracksor interfaces between different substrate materials should be detailedin accordance with PermaTEC Anti-Root Standard Drawings andPermaTEC NBS J31.MembraneUsing a suitable spreader or squeegee, the first coat of hot PermaTECAnti-Root compound is applied to the prepared substrate at anominal coat thickness of 3mm. The PermaFLASH-R polyesterreinforcement is brushed into the PermaTEC Anti-Root compoundwhilst it is still hot. All laps in the PermaFLASH-R should be at least75mm wide and fully sealed with the PermaTEC Anti-Rootcompound. The second coat is applied in the same manner ensuringcomplete coverage of PermaFLASH-R at the nominal coatingthickness of 3mm. The second coat of PermaTEC Anti-Root must beprotected.ProtectionPermaGUARD-F sand surfaced bitumen membrane is the standardprotection layer. It is applied directly to the second coat of PermaTECAnti-Root whilst it is still hot and tacky. It is used on the mainhorizontal area which is to be subsequently covered with a range ofsystem components such as insulation, separation layer,drainage/moisture retention layer, growing medium, soft landscaping.It is also used on unexposed detail items. The PermaGUARD-Fprotection layer should be brushed into the hot PermaTEC Anti-Rootas quickly as possible ensuring no air pockets. Laps in PermaGUARD-F to be minimum 75mm and sealed using hot PermaTEC Anti-Rootcompound.PermaGUARD-M slate surfaced bitumen membrane is used onexposed upstand details. It is applied to the second coat ofPermaTEC Anti-Root ensuring no air pockets. Laps in PermaGUARD-M to be minimum 75mm secured by controlled torch application anda neat bead of bitumen must be extracted from all lap joints.DetailingRainwater outlets and penetrations in the roof waterproofing systemshould be detailed in accordance with PermaTEC Standard Drawingsand PermaTEC NBS J31 and NBS Q37.System componentsA standard PermaTEC Anti-Root intensive roof system will include arange of system components including: insulation, separation layer,drainage/moisture retention layer, growing medium to a depth inaccordance with landscape architects requirements, plants, trees,grasses in accordance with landscape architect requirements.www.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 19Extensive green roof1. Metal insulated composite panel2. 150mm wide PermaFLASH-D150 bonded in PermaTEC3. 2 coats of PermaTEC Anti-Root incorporatingPermaFLASH-R reinforcement4. IKO Plasfeed drainage/moisture retention layer5. IKO Growing Medium6. IKO sedum blanketSpecification (NBS J31 and NBS Q37 available on request)Substrate preparationThe surface of the substrate (concrete, plywood, calcium silicateboard, metal/insulation composite etc.) should be suitably preparedto accept the PermaTEC Anti-Root fully bonded system. Joints, cracksor interfaces between different substrate materials should be detailedin accordance with PermaTEC Anti-Root Standard Drawings andPermaTEC NBS J31.MembraneUsing a suitable spreader or squeegee, the first coat of hot PermaTECAnti-Root compound is applied to the prepared substrate at anominal coat thickness of 3mm. The PermaFLASH-R polyesterreinforcement is brushed into the PermaTEC Anti-Root compoundwhilst it is still hot. All laps in the PermaFLASH-R should be at least75mm wide and fully sealed with the PermaTEC Anti-Rootcompound. The second coat is applied in the same manner ensuringcomplete coverage of PermaFLASH-R at the nominal coatingthickness of 3mm. The second coat of PermaTEC Anti-Root must beprotected.ProtectionPermaGUARD-F sand surfaced bitumen membrane is the standardprotection layer. It is applied directly to the second coat of PermaTECAnti-Root whilst it is still hot and tacky. It is used on the mainhorizontal area which is to be subsequently covered with a range ofsystem components such as drainage/moisture retention layer,growing medium, sedum blanket. It is also used on unexposed detailitems. The PermaGUARD-F protection layer should be brushed intothe hot PermaTEC as quickly as possible ensuring no air pockets.Laps in PermaGUARD-F to be minimum 75mm and sealed using hotPermaTEC Anti-Root compound.PermaGUARD-M slate surfaced bitumen membrane is used onexposed upstand details. It is applied to the second coat ofPermaTEC Anti-Root ensuring no air pockets. Laps in PermaGUARD-M to be minimum 75mm secured by controlled torch application anda neat bead of bitumen must be extracted from all lap joints.DetailingRainwater outlets and penetrations in the roof waterproofing systemshould be detailed in accordance with PermaTEC Standard Drawingsand PermaTEC NBS J31 and NBS Q37.System componentsA standard PermaTEC Anti Root extensive roof system will include arange of system components including: drainage/moisture retentionlayer, growing medium, sedum blanket, sedum plug plants,wildflower blanket in accordance with designers’ requirements.wwww.ikoroofing.co.uk

20 PERMATEC DESIGN GUIDEBiodiversebrown roof1. Concrete deck primed with PermaTEC Primer2. 2 coats of PermaTEC Anti-Root incorporatingPermaFLASH-R reinforcement3. PermaGUARD-F protection layer4. Dow SLX/SLA extruded polystyrene insulation board(or equal)5. Dow M-K separating layer (or equal)6. IKO Plasfeed drainage/moisture retention layer7. Broken rubble/brick8. IKO Biodiversity Growing Medium9. Wildflower seed mixSpecification (NBS J31 and NBS Q37 available on request)Substrate preparationThe surface of the substrate (concrete, plywood, calcium silicateboard, metal/insulation composite etc.) should be suitably preparedto accept the PermaTEC Anti-Root fully bonded system. Joints, cracksor interfaces between different substrate materials should be detailedin accordance with PermaTEC Anti-Root Standard Drawings andPermaTEC NBS J31.MembraneUsing a suitable spreader or squeegee, the first coat of hot PermaTECAnti-Root compound is applied to the prepared substrate at anominal coat thickness of 3mm. The PermaFLASH-R polyesterreinforcement is brushed into the PermaTEC Anti-Root compoundwhilst it is still hot. All laps in the PermaFLASH-R should be at least75mm wide and fully sealed with the PermaTEC Anti-Rootcompound. The second coat is applied in the same manner ensuringcomplete coverage of PermaFLASH-R at the nominal coatingthickness of 3mm. The second coat of PermaTEC Anti-Root must beprotected.ProtectionPermaGUARD-F sand surfaced bitumen membrane is the standardprotection layer. It is applied directly to the second coat of PermaTECAnti-Root whilst it is still hot and tacky. It is used on the mainhorizontal area which is to be subsequently covered with a range ofsystem components such as insulation, separation layer,drainage/moisture retention layer, biodiversity substrate mix,wildflower seeds etc. It is also used on unexposed detail items.The PermaGUARD-F protection layer should be brushed into the hotPermaTEC Anti-Root as quickly as possible ensuring no air pockets.Laps in PermaGUARD-F to be minimum 75mm and sealed using hotPermaTEC Anti-Root compound.PermaGUARD-M slate surfaced bitumen membrane is used onexposed upstand details. It is applied to the second coat ofPermaTEC Anti-Root by controlled torch application ensuring no airpockets. Laps in PermaGUARD-M to be minimum 75mm secured bycontrolled torch applications and a neat bead of bitumen must beextracted from all lap joints.DetailingRainwater outlets and penetrations in the roof waterproofing systemshould be detailed in accordance with PermaTEC Standard Drawingsand PermaTEC NBS J31 and NBS Q37.System componentsA standad PermaTEC biodiversity green roof system will include arange of components including: insulation, separation layer,drainage/mositure retention layer, biodiversity substrate mix,wildflower seeds or other vegetation in accordance with designers’requirements.www.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 21Substructurewaterproofing1. Concrete deck primed with PermaTEC Primer2. 2 coats of PermaTEC ECOWRAP incorporatingPermaFLASH-R reinforcement3. PermaGUARD-F protection layer4. Plasdrain drainage mat5. BackfillSpecification (NBS J40 available on request)Substrate preparationThe surface of the substrate (usually concrete) should be suitablyprepared to accept the PermaTEC fully bonded system. Joints, cracksor interfaces between different substrate materials should be detailedin accordance with PermaTEC Standard Drawings and PermaTECNBS J31.MembraneUsing a suitable spreader or squeegee, the first coat of hot PermaTECcompound is applied to the prepared substrate at a nominal coatthickness of 3mm. The PermaFLASH-R polyester reinforcement isbrushed into the PermaTEC compound whilst it is still hot. All laps inthe PermaFLASH-R should be at least 75mm wide and fully sealedwith the PermaTEC compound. The second coat is applied in thesame manner ensuring complete coverage of PermaFLASH-R at thenominal coating thickness of 3mm. The second coat of PermaTECmust be protected.ProtectionPermaGUARD-F sand surfaced bitumen membrane is the standardprotection layer. It is applied directly to the second coat of PermaTECwhilst it is still hot and tacky. It is used on the vertical or horizontalarea which is to be subsequently covered with a range of systemcomponents such as protection/drainage layers. The PermaGUARD-Fprotection layer should be brushed into the hot PermaTEC as quicklyas possible ensuring no air pockets. Laps in PermaGUARD-F to beminimum 75mm and sealed using hot PermaTEC compound.Extraordinary loadings may require an additional protection layer ofPermaGUARD-M slate surfaced bitumen membrane, applied bycontrolled torch application. Contact IKO Technical Servicesfor details.PermaGUARD-HDPB (Heavy Duty) or PermaGUARD-PB protectionboards can be used to provide additional protection to thewaterproofing system. They are installed butt-jointed to the secondcoat of PermaTEC compound, ensuring that no air pockets arepresent. Joints are taped over with 75mm reinforced adhesive tape.DetailingIn the event that a rainwater outlet detail in the waterproofingsystem is required. Use PermaTEC Standard Drawing details orcontact IKO Technical Services for advice.System componentsA standard PermaTEC system will include a range of systemcomponents including: protection/drainage layer prior to theinstallation of the backfill material or loading coat material(concrete etc).wwww.ikoroofing.co.uk

22 PERMATEC DESIGN GUIDETypical detailsDrainage50mm layer roundedwashed ballast50mm paving on support padsXPS insulationSeparating layerPermaGUARD-M protection layer50mm layer roundedwashed aggregateSeparating layerMinimum 50mm pavingslabs on proprietary supportsPermaGUARD-F protection layer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaFLASH-D500detailing sheetConcrete slab primed withPermaTEC PrimerConcrete slab/upstand primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementOutlet unitPermaFLASH-D500detailing sheetXPS insulationPermaFGUARD-Fprotection layerRainwater outlet invertedRainwater outlet parapet/balconyMinimum 50mm paving slabson proprietary supportsIKO Plasdrain drainage layerBedding materialClamping ring outlet assemblyClamping ring with weep holesPaving materialSeparating layerXPS insulationMinimum 50mm layer of 20-40mmrounded washed aggregate2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-F protection layerConcrete slab primed withPermaTEC PrimerPermaFLASH-D500detailing sheetClamp Ring SyphonicRainwater Outlet500mm wide PermaFLASH-R-D500bonded in PermaTEC ECOWRAPPermaGUARD-Fprotection layerConcrete slab primedwith PermaTEC PrimerRainwater outlet uninsulated podium deck2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-R reinforcementFullflow syphonic outletwww.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 23N.B. The total loadingon the insulation tobe confirmed by theinsulation manufacturer.2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementConcrete upstand primedwith PermaTEC PrimerPermaFLASH-D500detailing sheetMetal sleeve by othersPermaGUARD-M protection layer50mm layer roundedwashed aggregateCementitious surfacedXPS insulation150mm widePermaFLASH-D150detailing sheet bedded inPermaTEC ECOWRAPMetal sleeve by others2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-F protection layerMinimum 50mm paving slabs onproprietary supportsPermaGUARD-Mprotection layerPermaGUARD-Fprotection layerMinimum 50mm pavingslabs on proprietary supportsXPS insulationPermaGUARD-F protection layerConcrete slab primed withPermaTEC PrimerSeparating layerXPS insulationSeparating layerRainwater overflow chuteInsulated rainwater overflow chuteJointsPermaGUARD-Fprotection layer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-Rreinforcement300mm wide proprietarymovement joint bondedto concrete with epoxyadhesive (by others)PermaGUARD-Fprotection layer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-Rreinforcement150mm widePermaFLASH-D150bonded in PermaTECPermaGUARD-Fprotection layer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-Rreinforcement150mm widePermaFLASH-D150bonded in PermaTECConcrete slab primedwith PermaTEC PrimerJoint 12 to 50mm widewith joint filler (by others)Typical expansion joint detailStructural/shrinkagecracks up to 3mmStructural/shrinkagecracks 3 to 6mmJoints 6 to 12mm wide withjoint filler (by others)Concrete slab primedwith PermaTEC PrimerConstruction joints at allnon-monolithic changes inplane and materialsConcrete slab primedwith PermaTEC Primer150mm wide PermaFLASH-D150bonded in PermaTECConstruction joints at allnon-monolithic changes inplane and materialsCrack and joint detailCrack and joint detailwwww.ikoroofing.co.uk

24 PERMATEC DESIGN GUIDEUpstands and edge detailsSeparating layerMinimum 50mm thick pavingslabs on proprietary supportsRetention clip150mmminimumupstandMinimum 50mm pavingslabs on propietary supports2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementSeparating layer onXPS insulationPermaGUARD-Fprotection layerCoping stoneCementious surfacedXPS insulation50mm layerrounded washedaggregateConcrete slab primedwith PermaTEC PrimerConcrete slab primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-R reinforcementPermaGUARD-F protection layerXPS insulationDrip to external gutterCementious surfacedXPS insulationCorrosion resistant flashingby othersMetal gutter by others150mm wide PermaFLASH-D150bonded in PermaTEC ECOWRAPTypical parapet with capping detailSurface render (by others)Render stop bead (by others)Metal cover flashing (by others)Separating layerMinimum 50mm thickpaving slabs onproprietary supports150mmMin.PermaGUARD-Mprotection layer150mm Min.Minimum 50mm layer of 20-40mmrounded washed aggregateMinimum 50mm layerof 20-40mm roundedwashed aggregateConcrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-R reinforcementPermaGUARD-F protection layerXPS insulationPermaFLASH-D150 detailing strip10mm Cement/particle boardConcrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-R reinforcementPermaGUARD-F protection layerXPS insulationUpstand to MetsecMinimum 50mm thick pavingslabs on proprietary supportsSeparating layerRendered upstand sectionMinimum 50mm layerof 20-40mm roundedwashed aggregateSeparating layerMinimum 50mm thickpaving slabs onproprietary supports150mmMin.500mm Min.PermaGUARD-M additionalprotection layerConcrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-R reinforcementPermaGUARD-F protection layerUpstand behind brickworkwww.ikoroofing.co.ukXPS insulation

PERMATEC DESIGN GUIDE 25N.B. The total loadingon the insulation tobe confirmed by theinsulation manufacturer.200mm Min.Corrosive resistant metalflashing (by others)Minimum 50mm layer of 20-40mmrounded washed aggregateSeparating layerMinimum 50mm thickpaving slabs onproprietary supportsCementious surfacedXPS insulation50mm layer roundedwashed aggregate150mmminimumupstandMetal cover flashingCementious surfacedXPS insulationPermaFLASH-D150detailing strip75mmConcrete slab withPermaTEC primer75mmMinimum 50mm pavingslabs on propietary supportsPermaFLASH-D150 detailing stripConcrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-R reinforcementPermaGUARD-F protection layerXPS insulationInsulated change in level2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-Fprotection layerSeparating layer onXPS insulationTypical insulated upstand sectionPPC coping system50mm layer roundedwashed aggregate150mmminimumupstandTermination barand sealant (by others)Concrete slab/upstand primedwith PermaTEC PrimerSeparating layer150mmminimumupstandRetentionclipCementious surfacedXPS insulation50mm layerrounded washedaggregatePermaGUARD-Mprotection layerConcrete slab/upstand primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementMinimum 50mm pavingslabs on proprietary supportsSeparating layer onXPS insulationMinimum 50mm pavingslabs on proprietary supportsPermaGUARD-F protection layerXPS insulation2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-Fprotection layerUninsulated upstand with termination detailTypical parapet with coping detailLevel Access DrainageChannel (e.g. ACO FreeDeck)Sealant (by others)EPDM (by others)Sealant (by others)50mm thick paving slabson proprietary supportsSeparating layer150mmminimumupstandEPDM (by others)Metal cover flashing (by others)XPS insulation50mm layer roundedwashed aggregateConcrete slab/upstand primedwith PermaTEC PrimerConcrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-Fprotection layerXPS insulationMinimum 50mm pavingslabs on proprietary supports2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementSeparating layer onXPS insulationPermaGUARD-Fprotection layerLevel access thresholdCill section detailwwww.ikoroofing.co.uk

26 PERMATEC DESIGN GUIDEPenetrations and plinths50mm layer roundedwashed aggregate150mmminimumupstandPermaGuard-Mprotection layerStainless steeljubilee clip (by others)XPS insulationSeparating layerXPS insulationMinimum 50mm pavingslabs on propietary supports50mm layer roundedwashed aggregateSeparating layerMinimum 50mm pavingslabs on propietary supportsPermaFLASH-Ddetailing sheetPermaGUARD-Fprotection layerPermaFLASH-D500detailing sheet2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-M to exposed upstandsPermaGUARD-F to remaining PermaTEC2 Coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementMechanically fixedgalvanised steelpitch pocket formerCold metal penetration detailPitch pocket detailCollar flashingby others50mm layer roundedwashed aggregateStainless steeljubilee clip (by others)Minimum 50mm pavingslabs on propietary supportsXPS insulationSeparating layerMinimum 50mm thick pavingslabs on proprietary supportsSeparating layerMinimum 50mm layerof 20-40mm roundedwashed aggregatePermaGUARD-M toexposed upstandsPermaGUARD-F toremaining PermaTEC2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaFLASH-Ddetailing sheetHot pipe detailPipe sleeve by othersConcrete slab primed withPermaTEC PrimerInsulated hot pipeConcrete deck primedwith PermaTEC Primer2 coats of PermaTECECOWRAP incorporatingPermaFLASH-R reinforcementPermaGUARD-F protection layerUpstand to rooflightPermaGUARD-Mprotection layerPermaFLASH-D150detailing strip bondedin PermaTEC ECOWRAPXPS insulationwww.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 27N.B. The total loadingon the insulation tobe confirmed by theinsulation manufacturer.I beamMetal cover flashing (by others)XPS insulationMinimum 50mm pavingslabs on propietary supportsSeparating layerXPS insulation150mmminimumupstandConcrete plinth designed by othersto support rooftop plant and equipment.N.B. The total loading on the insulationto be confirmed by insulation manufacturerMinimum 50mm layerof 20-40mm roundedwashed aggregateSeparating layerIKO Plasdrain drainage layerfor cross drainage purposes (optional)200mmMin.2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-F protection layer50mm layer rounded washed aggregateConcrete slab/upstand primedwith PermaTEC PrimerConcrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-Fprotection layerXPS insulationPlinth detailFloating plinthXPS insulationMinimum 50mm layerof 20-40mm roundedwashed aggregateConcrete plinth designed by othersto support rooftop plant and equipment.Separating layerCast concrete slabSeparating layerXPS insulationIKO Plasdrain drainage layer (optional)250mmMin.Concrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-M additionalprotection layerPermaGUARD-Fprotection layerConcrete deck primedwith PermaTEC Primer2 coats of PermaTEC ECOWRAPincorporating PermaFLASH-RreinforcementPermaGUARD-Fprotection layerPlinth built off PermaTECFloating concrete basewwww.ikoroofing.co.uk

28 PERMATEC DESIGN GUIDE4 Simple components for thestandard waterproofing system...1PrimePermaTEC High Penetration PrimerA specially formulated bitumen primer for use on concrete and othersurfaces prior to the installation of the PermaTEC system.Size: 25 litre drumCoverage: 6-8m 2 per litre2WaterproofPermaTEC ECOWRAP CompoundA specially formulated combination of refined bitumen, syntheticrubbers, fillers and other additions. It is hot applied to the preparedsubstrate using squeegees to a total nominal thickness of 6mm.PermaTEC is covered by BBA Certificate No. 03/4009.Size: 12kg in polypropylene wrapper3ReinforcePermaFLASH-RA 60g/m 2 polyester reinforcement sheet. PermaFLASH-R is installedbetween the 2 x 3mm coats of PermaTEC compound, to provide hightensile strength.Roll size: 1m x 200m4ProtectPermaGUARD-FA sand surfaced 180g/m 2 polyester based bitumen membrane.PermaGUARD-F is installed as a protection layer into the final coat ofthe PermaTEC compound whilst it is still hot.Roll size: 1m x 20m42321www.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 29With a full range of accessoriesto cover every eventualityFor detailing...PermaFLASH Detailing StripA flexible bitumen and EPDM polymer detailingstrip, which is bedded into a coat of PermaTECfollowed by the full PermaTEC system. D500 isinstalled to rainwater outlets while D150 isinstalled to reinforce upstands, change of angledetails and minor movement joints.PermaGUARD-MA slate surfaced 180g/m 2 polyester based SBS modified bitumenmembrane. It is used on exposed detail areas and is installed intothe final coat of PermaTEC whilst it is still hot.Roll size: 1m x 8mPermaFLASH D150 - Roll size: 150mm x 20mPermaFLASH D500 - Roll size: 500mm x 20mFor green roofs...PermaTEC Anti-RootA special anti-root formulation of the PermaTEC compound, for use ingreen roof specifications. It is applied to the prepared substrate usingsqueegees to a total nominal thickness of 6mm. PermaTEC Anti-Root iscovered by BBA Certificate 03/4009 (Product Sheet 3).Size: 12kg keg in polypropylene wrapper marked ‘PermaTEC Anti-Root’PermaTORCH Anti-RootA slate surfaced high performance protection sheet consisting of180g/m 2 polymeric base, coated with polymer modifiedbitumen, containing a specially formulated root resistanttreatment, for use in green roof systems. Note: This product wasused in PermaTEC specifications prior to the introduction ofPermaTEC Anti-Root compound.Roll size: 1m x 7.5mFor drainage and additional onsite protection...PermaGUARD PB3.2mm thick protection board fabricated with a bituminous core ofnon woven glass fibre reinforcement. It exhibits high strength,excellent puncture resistance and non-compressible nature.PermaGUARD PB is installed into the final coat PermaTEC compoundwhilst it is still hot. All joints are taped.Size: 1.22m x 1.22mPlasdrain Drainage LayersThe IKO Plasdrain system is a plastic drainage composite with ageotextile filter sheet adhered to the upper surface.Size: 6mm x 0.97m x 100m rollsSize: 12mm x 1m x 50m rollsSize: 25mm x 0.9m x 50m rollsPermaGUARD HDPB (Heavy Duty)A high density polymeric protection board which is extremely tough withhigh impact resistance used in heavy duty situations. PermaGUARDHDPB is installed into the final coat of a PermaTEC compound whilst it isstill hot. All joints are taped.Size: 1m x 2mwwww.ikoroofing.co.uk

30 PERMATEC DESIGN GUIDEIKO - Setting the Standard in Innovation,Quality and ServiceThe Complete Waterproofing ServiceAs the global leader in the manufacture and supply of roofing and waterproofing solutions,IKO is a company that is in tune with the needs of its customers. An IKO flat roofingsolution gives you reassurance of working with an acknowledged leader in the design andimplementation of proven roofing and waterproofing systems.IKO is a global specialist with a reputation for innovation and quality stretching back over100 years. That gives us a level of knowledge and support unrivalled by any other roofingsystem provider; a difference you’ll appreciate in the service, expertise and performance webring to your project.Our unparalleled choice of flat roof waterproofing systems is a result of significantinvestment in R&D on a global scale, and is one of the reasons that IKO is the preferredpartner for so many specifiers, contractors, building managers and local authorities acrossthe UK and beyond.By combining a global strength with local expertise, IKO’s overall aim is to continue to setthe standards in roofing and waterproofing through investment, innovation and acommitment to quality and service.“We specified the PermaTEC systembecause of IKO’s ongoing commitmentto reducing their environmental impact.”Specification SupportIKO provides a comprehensive technicalsupport service for architects, specifiers andcontractors. Regionally based technicaladvisors can assess technical drawings, adviseon specific requirements and offer individualsolutions for any given project. IKO'stechnical support service is maintained withproper resource, in both equipment andexperienced personnel, and our bespokespecification design service is founded on thedesire and commitment to be the industryleader, delivering best value ‘right first time’flat roofing.• Bespoke specification design service issuingNBS J31 and Q37 documents• CAD Standard Drawings• Assistance with new build design• CDM Regulations• Building Regulations e.g. Part L: 2006• U value calculations• Condensation risk analysis• Guarantee packages for up to 20 years• RIBA Approved CPD PresentationsFrancis Walker, Senior Architect, RMJMwww.ikoroofing.co.uk

PERMATEC DESIGN GUIDE 31Driving and SupportingInstallation ExcellenceCommitment to theEnvironmentQuality Assurance andOngoing MaintenanceIKO roofing systems are only ever installed byfully qualified and licensed contractors. Withselection and training criteria that are amongthe most demanding in the industry andnationwide network coverage, you can beconfident that wherever you call on theirservices, your installation will be managed tothe highest possible standards.• Dedicated hot melt training facilities atIKO’s National Training Academy• Nationwide network of trained andqualified contractors• Installation only by trained and badgedoperativesIn a world with an ever increasing focus onthe environment and the challenge ofachieving new targets for sustainability andenergy performance, IKO has developedprocesses, complete systems and packagingwhich lead the industry in environmentalperformance.In the hot melt sector alone IKO has beenresponsible for pioneering the market interms of environmental responsibility.This began by introducing the first UKmanufactured hot melt waterproofing systemback in 2002, followed by other leadinginnovations such as zero waste packaging,ant-root and specially formulated compoundsallowing for lower application temperatureson site.“At IKO, just like the dedicatedroofing solutions we provide, we’rehere for you now and into the future.”RIBA-approved CPD presentationsAll IKO projects are regularly monitoredduring installation by our dedicated TechnicalServices Department, to maintain fullspecification compliance, and ensure that anysite queries are handled quickly andeffectively.The frequency and reporting procedures forthe project monitoring is formulated andagreed with the requirements of theindividual client concerned but will alwaysinclude attendance at a pre-start meeting anda guarantee sign-off inspection, with interiminspections and reporting measures asrequired.• Dedicated IKO engineers monitoring siteinstallations• QA procedure ensuring specificationcompliance on all projects• Pre-contract system briefing for all key sitemanagement personnel• Prompt and professional response totechnical issues on site• Comprehensive guaranteesAn IKO flat roof solution is an investmentthat will deliver many years of faultlessservice.A long-term commitment from you deservesan equally long-term commitment from us,and that’s why all of our waterproofingsystems are fully backed-up by long-term,meaningful guarantees offering ultimatepeace of mind.For technical support forHot Melt Systemstel 0844 412 7228or fax 0844 412 7229or emailtechnical@ikogroup.co.ukwwww.ikoroofing.co.uk

IKO: A Track Record of Innovation in the Hot Melt Market2002PermaTEC is launched – the first hot melt system to bemanufactured in the UK2008PermaTEC EcoWrap is launched, the UK's first hot meltsystem with zero wrapper waste and lower applicationtemperatures.2010PermaTEC Anti-Root is launched to revolutionise thegreen roof market. It is the first hot melt system in theworld with built-in protection against roots.CERTIFICATE No. 0 3 / 4 0 0 9IKO PLCSales SupportNorthern IrelandIrelandAppley Lane NorthT: 0844 873 106214 Sanda Road,502 Northwest Business ParkAppley BridgeF: 0844 873 1067Whitehouse, NewtownabbeyBallycoolinWiganE: sales@ikogroup.co.ukCounty Antrim BT37 9UBDublin 15Lancashire WN6 9ABwww.ikoroofing.co.ukMember of theIKO GroupTechnical ServicesT: 0844 412 7207F: 0844 412 7208E: technical@ikogroup.co.ukT: 028 9086 7079F: 028 9086 9079E: waterproofing@iko-ni.comwww.iko-ni.comT: 01 8855 090F: 01 8855 858E: waterproofing@iko.iewww.iko.ieWhilst every care is taken to see that the information given in this literature is correct and up to date, it is not intended to form part of anycontract or give rise to any collateral liability, which is hereby specifically excluded. Intending purchasers of our materials should thereforeverify with the company whether any changes in our specification or application details or otherwise have taken place since this literaturewas issued. Colours in this brochure are as accurate as the printing process will allow. The paper used to print this brochure ismanufactured using only natural wood pulp originating from managed, sustainable plantations, and is chlorine and acid free.sharecycleIn IKO’s book, it’s betterto recycle or redistribute