Underfloor Heating - RIBA Product Selector

System Selection GuidanceTypical heat outputsThe heat output of any given underfloor heating system is theresult of a combination of factors: UFH system installed, floorfinish installed over it, the UFH pipe spacing and the designedflow/return temperatures. All of these factors are consideredwhen a UFH system is designed.System performance: K H, W/m²KHow to calculate the heat output of a systemusing K HvaluesHeat output = K Hx difference between the mean water androom air temperatures.Example 1: A System Plates system with pipes spaced at 225mmcentres and a 1.5Tog carpet laid over. With a room air temperatureof 21°C and a mean water temperature of 50°C.Heat output = 2.35 x (50-21) = 2.35 x 29 = 68W/m 2Example 2: A Foiled Polystyrene system with 18mm gypsum fibreboard, 150mm pipe centres and 0.07Tog Tiles. With a room airtemperature of 20°C and a mean water temperature of 35°C.Heat output = 4.78 x (35-20) = 4.78 x 15 = 72W/m 2Heat source efficiencyWhen using a condensing boiler with UFH the return temperatureis typically below 55°C, enabling it to run in condensing modeunlike heating systems which require higher water temperatures.This provides a 3% increase in boiler efficiency throughout thenormal operating range of UFH.When using either air source or ground source heat pumps thefollowing table taken from the “Heat Emitter Guide for DomesticHeat Pumps”, published by the Department of Energy and ClimateChange and the Energy Savings Trust, is recommended as a sourceof guidance to optimise the Seasonal Performance Factor andreduce running costs.Heating circuitflow temp, ºCLikely heat pump SPFGSHPASHP35 4.3 3.640 4.1 3.445 3.7 3.050 3.4 2.755 3.1 2.460 2.8 2.1ThermoboardSystemStaplesinc 65mm ScreedSystem Platesinc 65mm ScreedPocketed Polystyreneinc 65mm ScreedFoiled Polystyrene/Low-Build 25inc. 18mm T&G ChipboardFoiled Polystyrene/Low-Build 25inc. 18mm GypsumFibre BoardLow-Build 15**Modular Wood***Raised AccessPipeCentresNoCovering10mmTiles25mmStone4mmVinyl7mmLaminate6mmCarpet18mmTimber12mmCarpet12mm Carpet+ 4mmunderlayTOG value of typical floor finish0.00 0.07 0.15 0.16 0.44 0.75 1.13 1.50 2.00100mm 6.05 5.77 5.48 5.45 4.64 4.00 3.42 3.01 2.58150mm 5.17 4.95 4.73 4.70 4.07 3.55 3.08 2.73 2.38200mm 4.46 4.28 4.10 4.08 3.58 3.16 2.78 2.49 2.19300mm 3.35 3.24 3.13 3.12 2.80 2.53 2.27 2.08 1.86150mm 5.07 4.86 4.64 4.61 4.00 3.50 3.05 2.71 2.36225mm 4.06 3.91 3.76 3.74 3.31 2.95 2.61 2.35 2.08300mm 3.28 3.18 3.07 3.06 2.76 2.50 2.25 2.06 1.84150mm 4.59 4.41 4.23 4.21 3.69 3.26 2.86 2.57 2.26200mm 3.96 3.83 3.68 3.66 3.25 2.91 2.59 2.34 2.08300mm 3.02 2.93 2.84 2.83 2.57 2.35 2.14 1.97 1.78150mm 3.37* 3.28 3.18 3.17 2.88 2.61 2.34 2.13 1.90200mm 2.95* 2.88 2.81 2.80 2.56 2.35 2.12 1.94 1.74300mm 2.04* 2.01 1.97 1.97 1.84 1.72 1.60 1.49 1.37150mm 4.96 4.78 4.58 4.56 3.98 3.49 3.03 2.68 2.32200mm 4.28 4.14 3.99 3.97 3.52 3.13 2.75 2.45 2.14300mm 2.89 2.82 2.75 2.74 2.51 2.30 2.08 1.90 1.71150mm 3.99 3.86 3.72 3.71 3.30 2.95 2.61 2.34 2.06100mm 3.30 3.23 3.13 3.12 2.84 2.58 2.32 2.11 1.88300mm 2.94 2.87 2.79 2.78 2.55 2.33 2.10 1.92 1.72* Laying a 20mm hardwood floor finish directly over foiled polystyrene is equivalent to having no floor covering.** Includes 12mm T&G plywood, some floor finishes will allow this to be reduced or removed completely.*** Where pipes are connected from above, access panels will typically reduce the heated floor area by 17%.Email: info@thermoboard.co.uk www.thermoboard.co.uk 7

System Selection GuidanceSystem selectorIdentification of the right Thermoboard UFH system for your projectnormally starts from the type of floor construction.Using this selector can lead you quickly to the system, or systemoptions, that will ideally suit your project.whichsystem?screededfloordryconstructionflooraccessfloornewexistingnewexistingbattened joisted floatingbattened joisted floatingraisedaccessaccessfromaboveaccessfrombelowaccessfromaboveaccessfrombelowoptionsoptionsoptionsoptionsoptionsstaples(page 9)low-build15(page 16)foiledpolystyrene(page 12-14)foiledpolystyrene(page 12-14)foiledpolystyrene(page 12-13)foiledpolystyrene(page 12-13)foiledpolystyrene(page 14)raised accesssystem(page 18)systemplates(page 10)low-build25(page 17)modularwood(page 15)modularwood(page 15)low-build15(page 16)pocketedpolystyrene(page 11)low-build15(page 16)low-build25(page 17)low-build25(page 17)Underfloor heating can also be incorporated into AcousticFloor constructions. The selection options are the same as fornon-acoustic floors and dependent on the floor construction(see page 19 for further information).8 Telephone: 01392 444122 Fax: 01392 444135

Floor Products for Screeded FloorsStaplesOverviewProductBasic system for placing/fixing 16mmUFH pipe.12ApplicationFixing UFH pipe to rigid insulation panelson a solid floor slab before screeding.Features and benefitsProductl Staples to fix pipe in position onrigid insulationl Lowest material costDesign/Installationl Pipe spacing/layout at installer’s discretionNOTE: 200mm centres normally offer the best balanceof performance and cost.l Installer marks top of insulation to indicatepipe positioning/spacingl Full flexibility to set pipe layout andspacing to suit specific project needsl Independent choice of insulation panelsto suit thermal and acoustic propertiesas requiredl Suits irregularly shaped floor areasl Staple gun available to installer: enablespipe fixing from standing position356System Performancel Heat output subject to pipe spacing andlayout consistency, see heat output tableson page 7.4System construction1 Edge expansion foam: with adhesivebacking and gaiter to prevent screedingress under insulation2 Sand/cement or proprietary screed3 16mm UFH pipe4 Staples5 Insulation panels: independent choiceto suit required thermal/acousticperformance6 Level solid sub-floorSelect this system ifllFastest installation time is not a priorityl You are ready to independently select,source and lay floor insulation panels,and to decide pipe spacingl You want lowest possible materials costl Risk of damage to pipework by othertrades during installation is minimal/notan issueSelect an alternativesystem ifl You need easy-to-determine pipe spacingand/or pipe shielded from accidentaldamage during installation: considerSystem Plates (page 10) or PocketedPolystyrene (page 11)l You want a system that includes floorinsulation panels and/or reducesrequired screed depth: considerPocketed Polystyrene (page 11)l You are installing on an existingscreeded floor and not planning todig out the current floor: considerLow-Build 15 (page 16) orLow-Build 25 (page 17)section viewTransitional AreasWhere pipes need to be supported and secured for run upwall to manifold: Curved Pipe Supports and Clamps areavailable (see page 27).Email: info@thermoboard.co.uk www.thermoboard.co.uk 9

Floor Products for Screeded FloorsSystem PlatesOverviewProductPlastic sheets with pre-formed grips to holdUFH pipe in position.ApplicationPlacement over rigid insulation panelson a solid floor slab before pipe installationand screeding.Features and benefits1234Productl Moulded sheets lock together:prevents screed ingress under Platesl Strong enough to support on-site foottraffic or wheelbarrows before screedingDesign/Installationl Sheets easily trimmed to size withutility knifel Moulded pipe grips designed to– make regular spacing easy(in multiples of 75mm)NOTE: 225mm centres normally offer the bestbalance of performance and cost.– allow diagonal pipe placementif layout requires– protect pipe from foot/wheel trafficbefore screedingl No measuring of pipe position neededl Layout flexibility to suit specificproject needsl Independent choice of insulation panelsto suit thermal and acoustic propertiesas requiredl Easy, fast installationNOTE: snail pattern recommended = more even floorsurface temperature.System Performancel The supported pipe position improvesscreed wrap around the pipe reducingvoids and increasing performance56System construction1 Edge expansion foam: with adhesivebacking and gaiter to prevent screedingress under Plates and insulation2 Sand/cement or proprietary screed3 16mm UFH pipe4 System Plates5 Insulation panels: independentchoice to suit required thermal/acoustic performance6 Level solid sub-floorsection viewSelect this system ifl You want to ensure regular pipe spacingl You are ready to independently select,source and lay floor insulation panelsl Risk of damage to pipework by othertrades during installation is an issueSelect an alternativesystem ifl You want lowest material cost, andinstallation time/risk of accidental pipedamage are not an issue: considerStaples (page 9)l You want a system that includes floorinsulation panels and/or reduces requiredscreed depth and/or minimises installationtime: consider Pocketed Polystyrene(page 11)l You are installing on an existingscreeded floor and not planning todig out the current floor: considerLow-Build 15 (page 16) orLow-Build 25 (page 17)Transitional AreasWhere System Plates are not required or practicaland/or where pipes need to be closely placed together(e.g. on approach to manifold): pipes may be anchoredto insulation using Staples system (see page 9).Where pipes need to be supported and securedfor run up wall to manifold: Curved Pipe Supportsand Clamps are available (see page 27).10 Telephone: 01392 444122 Fax: 01392 444135

Floor Products for Screeded FloorsPocketedPolystyreneOverviewProductInsulation panels with pre-routed screedpockets and channels to hold UFH pipe.ApplicationPlacement on a solid floor slab before pipeinstallation and screeding.Features and benefits1234Productl Machined panels: used in place of plaininsulation and separate pipe fixing productsl Pockets encourage screed to wrapround pipel Complementary end-panels insulate flowand return pipework, and support pipe turnsl Insulation thickness options:25, 35, 50 and 75mmDesign/Installationl Easy, fast and consistent installationl Insulation and UFH pipe base installedsimultaneously: saves labour time/costsl Reduced cost from reduced screed depth:typically 17mm less depth of screed thanwith a staples systeml Reduced screed = reduced drying timel Can be walked on during installationSelect this system ifl You’d like a system that includes thefloor insulationl You want/prefer pre-determined pipespacing with guaranteed heat outputl You want to minimise required quantity/depth of screed to enable faster jobcompletion/quicker floor heat-upin servicel Risk of damage to pipework by othertrades during installation is an issuel Panels protect pipe from wheelbarrowsand foot trafficl Pipe held in place: no tripping hazardSystem Performancel Reduced screed = quicker floor heat-upin servicel Fixed pipe centres ensure thermalperformance consistencySelect an alternativesystem ifl You would prefer to independentlyselect floor insulation panels and/ordecide pipe spacing: consider Staples(page 9) or System Plates (page 10)l You want lowest materials cost, andinstallation time/risk of accidental pipedamage are not an issue: considerStaples (page 9)l You are installing on an existingscreeded floor and not planning todig out the current floor: considerLow-Build 15 (page 16) orLow-Build 25 (page 17)5System construction1 Edge expansion foam: with adhesivebacking and gaiter to prevent screedingress under insulation2 Sand/cement or proprietary screed3 16mm UFH pipe: at pre-determined 150,200 or 300mm centres4 Pocketed Polystyrene panels (insulation)5 Level solid sub-floorsection viewTransitional AreasFor transitional areas, dedicated channel panels areavailable which insulate the flow and return pipesreducing localised overheating.Where pipes need to be supported and securedfor run up wall to manifold: Curved Pipe Supportsand Clamps are available (see page 27).Email: info@thermoboard.co.uk www.thermoboard.co.uk 11

Floor Products for Dry Construction FloorsFoiled PolystyreneFor joisted/battened floorsOverviewProductInsulation panels with pre-fitted heat diffuserand pre-routed channels for UFH pipe.ApplicationPlacement within new or existing timberjoisted and battened floor constructions.In joisted applications, installation work forthis system may be from either above orbelow the floor construction.Features and benefitsProductl Pipe and diffuser is fully constrained bythe insulation: enables full contact withoverlying floor deckl Insulation thickness options: joistedfloors = 50/75mm, battened floors =25/35/50/75mml Panels to suit 400 and 600mm joistsl Supplied with integral PET filmDesign/Installationl Separate diffuser plate not requiredl Easy/fast installationl No pugging or wet trades required:no delay of laying floor deckl Insulation and UFH pipe base installedsimultaneously: saves labour time/costsl Panels can be neatly trimmed usingcircular sawl Pipe in serpentine pattern to follow joists/battens layoutl Plastic film shields pipe channels fromdirt and debris, enabling better contactbetween the pipe and the aluminiumheat diffuserSystem Performancel Floor structure has low thermal mass =fast response to heat demand changesl Fixed pipe centres ensure consistentthermal outputl Plastic film prevents floor ticking causedby the diffuser’s expansion and contractionTransitional AreasFor transitional areas, dedicated channel panels areavailable which insulate the flow and return pipesreducing localised overheating.Either this system,or Modular Wood,is suitable ifFor new or existing joisted floors:l The joists will be/are regularly spacedFor new or existing battened floors:l The battens will be/are set out withregular spacingl You do not intend to run major servicepipes/cabling within the floor voidSelect this system ifl The room is irregular in shape andyou want to ensure the entire floorarea is heatedFor existing joisted/battened floors:l You are able to/intend to lift the existingfloor deckFor existing joisted floors:l You cannot lift the floor deck/gainaccess from above – but can do sofrom belowl The joists are regularly spaced, ideallyat 400mm or 600mm centresThis system is recommended whenl The planned floor finish is engineeredor solid woodWhere pipes need to be supported and secured for runup wall to manifold: Curved Pipe Supports and Clampsare available (see page 27).Select an alternativesystem ifl The joists or battens will be/areirregularly spaced for some reason:consider Modular Wood (page 15)l Any part of the installation requires aweather-resistant floor deck: considerModular Wood (page 15)For battened floors:l You intend to run major servicepipes/cabling within the floor void:consider Modular Wood (page 15)For existing joisted/battened floors:l Where lifting the floor deck is notplanned/not possible: considerLow-Build 15 (page 16) orLow-Build 25 (page 17)12 Telephone: 01392 444122 Fax: 01392 444135

Floor Products for Dry Construction Floors12354System construction(joisted floors)1 Timber floor deck2 16mm UFH pipe: placed intopre-cut channels at 200mm centres3 Foiled Polystyrene batten/joist panel(insulation) with pre-fitted aluminiumdiffuser and polyethylene film4 Joists with plastic ‘L’ brackets5 End panel (insulation)Joisted floorssection view12System construction(battened floors)1 Timber floor deck35 42 16mm UFH pipe: placed intopre-cut channels at 200mm centres3 Foiled Polystyrene batten/joist panel(insulation) with pre-fitted aluminiumdiffuser and polyethylene film4 Battens5 End panel (insulation)Battened floorssection viewEmail: info@thermoboard.co.uk www.thermoboard.co.uk 13

Floor Products for Dry Construction FloorsFoiledPolystyrenefor fully floating floorsOverview1ProductInsulation panels with factory-fitted heatdiffuser and channels for UFH pipe.Insulation panels overlaid/butted closelytogether over the whole heating area toform a continuous insulation layer.ApplicationFor new floating floor constructions orrefurbishment of existing floating floors.Features and benefitsProductl Pipe integrated within insulationthickness: enables full diffuser contactwith overlying floor deckl Insulation thickness options:25, 35, 50 and 75mml Supplied with integral PET filmDesign/Installationl Separate diffuser plate not requiredl Easy/fast installation and pipe placement:similar timescale for installing non-heatedfloating floorl Insulation and UFH pipe base installedsimultaneously: saves labour time/costsl Panels can be neatly trimmed usingcircular sawl Pipe in serpentine patternl Plastic film shields pipe channels fromdirt and debris, enabling better contactbetween the pipe and the aluminiumheat diffuserSystem Performancel High power outputl Floor structure has low thermal mass =fast response to heat demand changesl Fixed pipe centres ensure consistentthermal outputl Plastic film prevents floor ticking causedby the diffuser expansion and contractionSystem requiresl The subfloor construction to be levelIf the planned floor finish is engineeredor solid wood:l The floor will need to be battened(see pages 12–13)For existing fully floating floors:Select this system ifl You are able/intend to lift theexisting floor deckSelect an alternativesystem ifl For existing fully floating floorsWhere lifting the existing floor deckis not planned/not possible: considerLow-Build 15 (page 16)or Low-Build 25 (page 17)23System construction1 T&G timber or cementitious floor deck2 16mm UFH pipe: placed intopre-cut channels at 200mm centres3 Foiled Polystyrene floating floor panel(insulation) with pre-fitted aluminiumdiffuser and polyethylene filmNOTE: End panel not shown, but is requiredfor installation.section viewTransitional AreasFor transitional areas, dedicated channel panels areavailable which insulate the flow and return pipesreducing localised overheating.Where pipes need to be supported and securedfor run up wall to manifold: Curved Pipe Supportsand Clamps are available (see page 27).14 Telephone: 01392 444122 Fax: 01392 444135

Floor Products for Dry Construction FloorsModular WoodOverviewProductTongue-and-groove (T&G) P5 chipboard orWBP plywood panels with integral UFH pipe.ApplicationPlacement over new or existing softwood orI-beam timber joisted and battened floor1constructions. Ideal for non-standard/inconsistently spaced timber floor constructions.Features and benefitsProductl UFH pipe integrated within floor deckl 100mm pipe spacing provides efficientheat transferOptions:l 22mm thick panels available as chipboard(for joist centres up to 450mm) or plywood(for 600mm joist centres) or 24mm thick234System construction1 Modular Wood (chipboard or plywood)T&G panels with pre-fitted UFH pipeat 100mm centres2 10mm UFH pipe3 Insulation beneath floor: glass fibre ormineral wool between joists/battens;or rigid insulation panels supported onjoists/battens4 Timber joists (or battens)plywood panelsl Other sizes of panels with different pipespacings can also be supplied, if requiredl Panels with waterproof slip-resistantcoating: allowing exposure of deck toexternal weather for up to 42 daysDesign/Installationl Enables easy, fast, simultaneousinstallation of pipe and floor deckl Pipe location/layout depicted onpanel surface to assist installerl Panels can be lifted at any timeto gain access to floor voidl Pipe in serpentine patternSystem Performancel Fixed pipe centres ensure consistentthermal outputl High power outputl Low floor mass = faster heat responsesection viewTransitional AreasWhere pipes need to be supported and securedfor run up wall to manifold: Curved Pipe Supportsand Clamps are available (see page 27).Either this system,or Foiled Polystyrene,is suitable ifFor new or existing joisted floors:l The joists will be/are regularly spacedFor new or existing battened floors:l The battens will be/are set out withregular spacingFor existing joisted/battened floors:l You are able/intend to lift theexisting floor deckSelect this system ifl The joists/battens are irregularlyspaced for any reasonl Any part of the installation requiresa weather-resistant floor deckFor new or existing battened floors:l There will be major service pipes/cablingwithin the floor voidPanel options (plywood or chipboard)l For wet rooms, use plywoodl For waterproof working floor deckchoose Protectadekl If joist spacing exceeds 450mm centres,use the plywood optionSelect an alternativesystem ifl Room is irregular in shape and you wantto ensure the entire floor area is heated:consider Foiled Polystyrene (page 12)For new or existing joisted/battened floors:l Joist/batten spacing exceeds 600mm:consider Foiled Polystyrene (page 12)or a Low-Build system (pages 16–17)l Joists are engineered and regularly spaced:consider Foiled Polystyrene (page 12)For existing joisted/battened floors:l Where lifting the floor deck is not planned:consider a Low-Build system (pages 16–17)Email: info@thermoboard.co.uk www.thermoboard.co.uk 15

Floor Products for Existing SubfloorsLow-Build 15OverviewProductUltra-slim insulation panels with pre-fittedheat diffuser and channels for 10mmUFH pipe.ApplicationDirect placement over any existing floors.Features and benefitsProductl Pipe integrated within insulation thickness:enables full diffuser contact with overlyingfloor finishl Low build up height: 15mm excludingoptional load-bearing ply layerDesign/Installationl Separate end return panel not requiredl Separate diffuser plate not requiredl Lightweight panel: easy to cut and install –only one person required*l Very low build = minimal rise in floor level= less disruption to doors/skirtingl Pipe in serpentine patternSystem Performancel Fixed pipe centres ensure consistentthermal outputl Robust: able to withstand point loadingl Energy-efficient: compared with electricUFH systems, saves up to two-thirds**of running costs* Qualified electrician required if mains-connectedcontrols fitted.** Based on using a SEDBUK A Rated gas boiler,and wet vs electric UFH systems at typical 2010domestic energy prices.Select this system ifl Floor area to be coveredis less than 26m 2l Area is to be heated as a single zoneIf area is greater than 26m 2 ,select this system if:l Build height is criticall You want to minimise disruptionto existing fitted features includingdoors and skirtingFor existing joisted/battened floors:l You do not want to/intend to liftthe existing floor deckSelect alternative system,Low-Build 25 (page 17), ifl Build height is important but NOT criticall Existing skirting is to be replacedl Existing doors are to be replaced,or removed and planedl Where area is greater than 26m 2 andlowest cost option is sought12345System construction1 Selected floor finish2 Optional load-bearing plywood layer3 10mm UFH pipe: placed intopre-cut channels at 150mm centres4 Low-Build 15 floor panel (insulation)with pre-fitted aluminium diffuser5 Integral end panel (insulation)with pre-cut end-return, flow andthrough-connect channels for pipesection viewTransitional AreasFor transitional areas, dedicated channel panels areavailable which insulate the flow and return pipesreducing localised overheating.Curved Pipe Supports and Clamps (see page 27)are supplied with the Low-Build 15 system for placeswhere pipes need to be supported and secured for runup wall to manifold.16 Telephone: 01392 444122 Fax: 01392 444135

Floor Products for Existing SubfloorsLow-Build 25OverviewProductSlim (25mm depth) insulation panels withpre-fitted heat diffuser and channels for16mm UFH pipe.ApplicationDirect placement onto existingsolid/screeded floors.Features and benefitsProductl Pipe integrated within insulationthickness: enables full diffuser contactwith overlying floor deckl 25mm insulation thicknessl Supplied with integral PET filmDesign/Installationl Separate diffuser plate not requiredl Easy/fast installation and pipe placement:similar timescale for installing non-heatedfloating floorl Insulation and UFH pipe base installedsimultaneously: saves labour time/costsl Panels can be neatly trimmed usingcircular sawl Pipe in serpentine patternSystem Performancel High power outputl Floor structure has low thermal mass =fast response to heat demand changesl Fixed pipe centres ensure consistentthermal outputl Plastic film prevents floor ticking causedby the diffuser expansion and contractionSelect this system ifl Floor area to be covered is greaterthan 26m 2l Build height is important but NOT criticall Existing skirting is to be replacedl Existing doors are to be replaced,or removed and planedl You require multiple heatingcontrol zonesSelect alternative system,Low-Build 15 (page 16), ifl The area is less than 26m 2 and is to beheated as a single zonel The area is greater than 26m 2 and buildheight is critical123System construction1 Chipboard floor deck2 16mm UFH pipe: placed intopre-cut channels at 200mm centres3 Low-Build 25 panel (insulation)with pre-fitted aluminium diffuserand polyethylene filmNOTE: 25mm end panel (insulation)also availablesection viewTransitional AreasFor transitional areas, dedicated channel panels areavailable which insulate the flow and return pipesreducing localised overheating.Where pipes need to be supported and securedfor run up wall to manifold: Curved Pipe Supportsand Clamps are available (see page 27).Email: info@thermoboard.co.uk www.thermoboard.co.uk 17

Solutions for Special Floor ConstructionsRaised AccessFloors (RAF)1OverviewProductModular system carrying UFH pipe onraised brackets.ApplicationIntegration into new RAF installations,or retrofitting to older types of RAF –for heating and cooling.23Features and benefits4Productl Pipe integrated within insulation/heatingmodule thickness: enables close contactwith overlying RAF panelsDesign/Installationl RAF system/modules can be repositionedat any time in futurel Heating system has small footprint: leavesspace for good access to underfloor voidl This void can be accessed at any timewithout disrupting the heating systemSystem Performancel Galvanised steel surface of RAF panelsacts as an additional heat diffuserincreasing performanceFor selection adviceand guidancePlease contact Thermoboard on01392 444122 orinfo@thermoboard.co.uk675System construction1 Floor finish2 RAF panel3 16mm UFH pipe: placed at300mm centres into channelspre-cut into heating modules4 Polystyrene insulation strips5 RAF bracket6 Pedestal7 Subfloorsection viewTransitional AreasWhere pipes need to be supported and securedfor run up wall to manifold: Curved Pipe Supportsand Clamps are available (see page 27).18 Telephone: 01392 444122 Fax: 01392 444135

Solutions for Special Floor ConstructionsAcoustic FloorsOverviewUFH installations, incorporatingThermoboard systems, integrated intostandard acoustic floor constructions.Features and benefitsDesign/installationl Thermoboard systems can beeasily incorporated into manyRobust Standard Detailsl For installations using Robust Detailsrather than pre-completion testing,Thermoboard can supply specific details ofhow to integrate UFH into the construction3456712System constructionTypical example: incorporatingPocketed Polystyrene system1 Floor finish2 Screed: 65mm sand:cement screedor 40mm proprietary screed withnominal 80kg/m 2 per unit area3 16mm UFH pipe: placed atpre-determined centres4 Pocketed Polystyrene panels(insulation – typically 25mm)5 Resilient layer: 5-10mm foamedpolythene, 30-36kg/m 26 Solid sub-floor7 Ceiling treatmentSystem performancel There is no specified increase in acousticperformance when integrated into RobustStandard Detailsl For proprietary systems requiringPre-Completion Testing please refer tothe suppliers of the acoustic productsFor selection adviceand guidanceDifferent criteria and considerations applyto selection and installation of UFH systemswithin acoustic floor constructions.We encourage you to contactThermoboard for additional adviceabout your specific project.Please call 01392 444122 or emailinfo@thermoboard.co.ukSuitable systemsWhere UFH is fitted within acoustic floorconstructions, the UFH system is subjectto different selection criteria and installationprocedures.The type and position of the acoustic layerwithin the floor construction is one significantfactor that may influence selection of theright Thermoboard system.System optionsFor new screeded acoustic floorsl Staples (page 9), System Plates(page 10) or Pocketed Polystyrene(page 11), including bespoke panels,may be suitableSelection will be influenced by:– Whether separating construction includesthermal insulation less than, or greater than(or equal to), 0.75m 2 /kW– Whether or not build height is criticalFor existing screeded acoustic floorsl Foiled Polystyrene (page 12),Low-Build 15 (page 16) or Low-Build 25(page 17) may be suitableWith selection influenced by:– Whether a floor void is required– Extent to which build height is critical– Whether heated floor area is lessor greater than 26m 2section viewFor new battened and floatingacoustic floorsl Foiled Polystyrene (page 12-14) is suitableFor new joisted acoustic floorsl Foiled Polystyrene (page 12) orModular Wood (page 15) may be suitableWith selection influenced by:– Extent to which build height is criticalFor existing dry constructionacoustic floorsl If the floor deck will be lifted, the optionsare as those for new dry construction floors(see above – battened, floating or joisted)l If the floor deck will not be lifted,Low-Build 15 (page 16) orLow-Build 25 (page 17) may be suitableWith selection additionally influenced by:– Extent to which build height is critical– Whether heated floor area is lessor greater than 26m 2NOTE: the page references guide the reader to theSystem detail page for that product, but specificinstallation procedures or floor constructioncross-sections may be different when that productis installed within an acoustic floor.Email: info@thermoboard.co.uk www.thermoboard.co.uk 19

UFH Pipe and FittingsUFH pipeFittingsOverviewProductFlexius polybutylene (PB) UFHpipe with integral oxygen barrier,for non-potable applications.ApplicationUse as part of Thermoboard plumbed UFHsystems. With most systems, UFH pipe isplaced at time of installation (see individualsystem pages).10mm version is integral to Modular Woodsystem (page 15) and is used in theLow-Build 15 system (page 16).16mm pipe is used forl Staples system (page 9)l System Plates system (page 10)l Pocketed Polystyrene system(page 11)l All Foiled Polystyrene systems(pages 12-14)l Low-Build 25 system (page 17)l Raised Access Floor system (page 18)10mm pipe is used forl Low-Build 15 system (page 16)10mm pipe is pre-fitted inl Modular Wood system (page 15)Features and benefitsProductl 16mm version available in choice often coil lengths from 25m to 120m(see page 27) for economic installation/minimum wastel 10mm version (for Low-Build 15system) available in 60m coilsl Incorporates fully-protected integralbarrier to prevent oxygen permeationl 100% recyclable materiall BSI kitemarked to BS EN ISO21003:2008Design/Installationl Highly flexible, even at low temperatures,so it bends more easily at end-returnsand leading to the manifoldl High impact strength: returns to originalshape if crushed on sitel No recoil in useSystem Performancel Non-corrosivel Stress-resistantl 100-year guarantee**guarantee is for underfloor heating and coolingapplications onlyOverviewProductWhere joints are needed, Thermoboardsystems use 16mm Hep 2O push-fit fittingsfrom Wavin.ApplicationFor joints where connections are requiredabove the floor to connect to manifoldsand boilers or alternative heat sources.Also for below-floor joints when fittingModular Wood system (page 15)Features and benefitsProductl Polybutylene with integral push-fitmechanism with pre-lubricated ‘O’ ringl Range of elbows, tees and straightconnectors (see page 27)l All fittings are demountablel Hep 2O fittings are guaranteed for 50 yearsDesign/Installationl No flux or solder requiredl Rotatable through 360°, even underpressure, for maximum versatilityduring installation20 Telephone: 01392 444122 Fax: 01392 444135

Manifolds, Controls and ThermostatsCompositeManifold4Overview2ProductModular composite manifold forup to 12 ports.ApplicationDesigned to enable any manifold system tobe configured, from simple flexible modules,to suit the size of the installation. Allowsfuture retrofitting of additional circuits.13105For UFH installations in residential andlight commercial property – from smallextensions to new build houses and flatsand refurbishment projects.Features and benefitsProductl Main components include:– Starter pack, including inlets, pressureand temperature gauges, end caps,mounting brackets and installation kit– Control pack incorporating pumpand mixing unit– One-port and three-port packs toallow assembly of required numberup to 12 portsl BBA certified for a 25 year service lifeDesign/Installationl Lightweight: simple to assembleand easy to installl No special tools requiredl Can be assembled in either leftor right configurationl Ports can be assembled facing upor down as required to supply roomsabove or below the manifold locationl Easily extendable: additional circuitscan be added at any timel Unique ‘Memory Ring’ enables individualcircuit isolation, with quick and simplebalancing without toolsl A single circuit can be isolated andbalanced without unbalancing the system6 78Service Performancel A single manifold can supply up to250m 2 at 75W/m 2l Allows circuit pressure testing usingintegral gaugesl Operates especially well with renewabletechnologies, which are at their mostefficient at lower temperatures:– The smoother internal bore of theThermoboard manifold arms allows ahigher water flow than other manifolds.Therefore the average watertemperature in the floor is higher– The three-port valve in the mixing unitallows either100% of the water to be taken directlyfrom the heat source or100% to be re-circulated orAny intermediate proportional mixof direct and re-circulated water.This allows the heat source to operateat the lowest possible temperatureNOTE: Single-circuit installations which require watertemperature control will be connected to their heat sourcevia a mixing unit, but will not require a full manifold.9Modular assemblyKey elements1 Circulator pump2 Flow watch protection thermostat3 Flow temperature gauge4 Balancing knob and memory ring5 16mm pipe connectors6 Thermostatic actuator7 Mixing valve8 Combined pressure/returntemperature gauge9 22mm isolation valves10 Thermoelectric actuator1-port or 3-port packsControl packStarter packEmail: info@thermoboard.co.uk www.thermoboard.co.uk 21

Manifolds, Controls and ThermostatsStandard or networkedcontrols are suitable forl Any Thermoboard UFH systemSelect wiredthermostats ifl You wish to future proof the installationfor different thermostatsl You would prefer to use the domesticelectricity supply instead of batteriesStandard controlsSelect wirelessthermostats ifl You wish/intend to avoid the needto install wiring in walls to connectthermostats with boiler controlsl You are likely to be installingtemperature controls inseparate phasesSelect the networkedcontrol system ifl You wish to control all thermostatsfrom a central locationl You want to control the heatingsystem remotely via the internetl You wish to control radiators and/ora hot water cylinder via a singlecontrol systemSingle zone packAlso availableSingle Zone Pack (52UH701)Comprising one programmable wirelessthermostat with 2-zone Control Centre.Email: info@thermoboard.co.uk www.thermoboard.co.uk 23

Manifolds, Controls and ThermostatsNetworkedcontrolsOverviewProduct12V network range of thermostats andan 8-zone control centreOptions: Touch Padcontrol and NetMonitorOverviewProductsTouch Pad: Control up to 32 thermostatson the heating systemAdditional options (see right):l 32-zone Touch Pad controll NetMonitor internet connectionfor control via web-enabled devicesApplicationDesigned to work as part of a networkedsystem with options to control remotelyfrom your PC or by SMS.Features and benefitsProductl Programmable unitsl Wiring Control Centres are safety fusedl Output available for conventionalradiators/towel rail controlDesign/Installationl Control system can be tailoredto each individual location:straightforward connectionsl Easy wiring: no special tools requiredl Keypad lock to prevent tamperingwith programmed settingsService Functionsl Control Centres incorporate outputcontrol terminals for Boiler, Pump andDomestic Hot Waterl Circuits can be controlled separatelyor together as preferredNetMonitor: Plug-in unit for internet controlApplicationDesigned to provide multi-room touchcontrol (or PC/internet control) for 12vnetworked thermostatsFeatures and benefitsProductl (Touch Pad) 95x55mm widescreencolour displayl (NetMonitor) Self-contained plug-in unitDesign/Installationl Up to 32 thermostats can be programmedremotely, and have their settings copiedfrom one to anotherService Functionsl Temperature hold: retains desiredtemperature for fixed periodl Auto time: automatically synchronisesall thermostat clocks, and adjusts forGMT/BST time changesl Quick view: at-a-glance view ofthermostats statusl Individual thermostats are selectablefor control by central time clock and forfrost protection temperaturel Hot water boost: to override timedsettingsl Holiday frost protection model Operational history review facility:past 4 weeks operational hours/past 24 hours temperaturesl All thermostats lockable to preventtampering with programmed settingsl (NetMonitor) All systems and settingscontrollable via internet, with email orSMS alerts if any alarm is triggered orprogrammed limits reachedTouch Pad controlNetworked thermostat24 Telephone: 01392 444122 Fax: 01392 444135

Specification and OrderingProjectdesign supportPlanning andcosting assistanceThermoboard has the specialist expertiseand support to help ensure every projectachieves a completely successful installation.For installers, builders and specifiers, we canprovide the full benefits of our experience.Thermoboard expert assistance ranges fromonline system selection tools to dedicatedproject assistance. We have what you’ll needwhether it’s for small projects or for larger,more complex schemes.QuickCalc – Instantonline project quotationsQuickCalc is an online tool thatprovides instant project quotationsfor typical UFH projects:l For new screeded and joisted floorsl For any existing floor, up to 26m 2total area, using ThermoboardLow-Build 15 systemYou can access QuickCalc viawww.thermoboard.co.uk – or at your localstockist. A QuickCalc quote will generate:l Project cost (at current Trade List Price)l Project list of required materialsl Generic room layoutsNOTE: Each QuickCalc quotation is supported byThermoboard product guarantees and step-by-stepinstallation guides.When using QuickCalc for new-buildassignments, the project must:l Use a standard boiler(not heat pumps, for example)l Be built to current Building Regulationsl Have a single manifoldNOTE: The above criteria do NOT apply to UFH projectsfor existing floors using the Low-Build 15 system.For any other projects, our FullSpec servicecan ensure complete peace of mind.FullSpec – Completedesign and project supportOur FullSpec service can be appliedto projects that involve larger or morecomplex schemes – whatever type offloor construction is involved.Our specialist support includes:l Dedicated Project Managerl Heat loss calculations on requestl Fully-warrantied design (see page 26)l Complete CAD installation drawingsl Made-to-measure products where requiredl Control options tailored to specificproject needsl Direct-to-site delivery of materialsl Call-off service for efficient projectschedulingThis service can be applied to projectsthat have special needs, factors orcircumstances. For example, we canhelp you plan for UFH installationschemes involving:l Renewable heat sources(e.g. heat pumps, geothermal heating)l Retrofit into old buildings that do notmeet today’s building regulationsl High ceilings and/or uneven floor surfacesl Room-by-room tailored solutionsl Acoustic floor constructionl Raised access floorsEmail: info@thermoboard.co.uk www.thermoboard.co.uk 25

Advice and General InformationTechnicaladvice andassistanceWhether your project is large or small,routine or complex, Thermoboard UFHsystems and services can help ensureyou achieve exactly the right result.If you require further information,answers to specific queries, or wouldlike to request our FullSpec service,please contact us direct via:Telephone 01392 444122info@thermoboard.co.ukor visitwww.thermoboard.co.ukWarrantiesand guaranteesQuality and environmentalmanagementAll Thermoboard products are manufacturedunder exacting Quality and Environmentalmanagement systems:l BS EN ISO 9001:2008 andl EN ISO 14001:2004 Certificate No.1473Product andsystem warrantiesProvided that their installation has adheredto our published advice, Thermoboard andother Wavin products used within ThermoboardUFH systems are covered as follows:l Flexius UFH pipe100-year guarantee*; BSI Kitemarkl Hep 2O push-fit fittings50-year guarantee*; BSI Kitemarkl Composite Manifold25-year BBA certification No. 10/4738;1-year warranty for its electrical componentsl Controls2-year warrantyl Other Thermoboard items1-year warrantyl FullSpec system designscovered by Professional Indemnity Insurance* see pipe service conditions on website.ISO 9001:2000GeneralinformationHealth and SafetyAll projects involving Thermoboard systemsshould adhere to the latest version of allrelevant legislation on site, including:l CDM Regulationsl COSHHl Health and Safety At Work Actl Management of Health and SafetyAt Work Regulationsl Manual Handling Operations RegulationsBuilding RegulationsReference should be made to relevantsections of the latest version of the BuildingRegulations including:l Approved Document L (thermal)l Approved Document E (acoustic)SupplyAll products described in this Product Guideare supplied through a nationwide network ofMerchant Distributors. Contact Thermoboardfor details of your nearest stockist.Conditions of saleThe Company will not accept responsibilityfor the malfunction of any installationwhich includes components not suppliedby Thermoboard. Goods are sold subjectto Wavin’s standard terms and conditionsof sale, which are available atwww.wavin.co.uk.26 Telephone: 01392 444122 Fax: 01392 444135

Standard Product ListStandard product listDescriptionScreeded SystemsNominaldia. (mm)CataloguenumberPackquantityStaples System (page 9)60mm staples for 16mm UFH pipe 16 15UH230 30040mm staples for 16mm UFH pipe 16 15UH240 300Staple Gun 15UH324 1System Plate System (page 10)System Plate (1275 x 975mm) 16 16UH196 18Low-Build SystemsLow-Build 15 system (page 16)Coil 60m (for Low-Build 15 system) 10 10UH060 1Universal Panel (1200 x 600 x 15mm) 92UH310 10Universal Panel (1200 x 600 x 15mm) 92UH315 15Manifold Pack – One Port 92UH101 1Manifold Pack – Additional Port 92UH103 1Connection Pack – Small Room 92UH006 1UFH PipeCoil 25m a 16 16UH025 1Coil 40m a 16 16UH040 1Coil 50m a 16 16UH050 1Coil 60m a 16 16UH060 1Coil 70m a 16 16UH070 1Coil 80m a 16 16UH080 1Coil 90m a 16 16UH090 1Coil 100m a 16 16UH100 1Coil 110m a 16 16UH110 1Coil 120m a 16 16UH120 1System AncillariesEdge Expansion Foam150mm x 25m15UH153 116mm Pipe Supports 16 16UH320 5010mm Socket 16mm Spigot a 10 16UH550 1016mm Socket 10mm Spigot a 16 16UH560 1016mm Elbow Connector a 16 16UH530 1016mm Equal Tee a 16 16UH540 1016mm Straight Connector a 16 16UH510 1016 x 10 x 16mm Branch Reduced Tee a 16 16UH001 1016mm Demountable Stop End a 16 16UH002 10Fitting Repair Kit 16 16UH245 1Pressure Test Connection Kit 16 16UH250 1Air Vent Kit 16 16UH255 1DescriptionNominaldia. (mm)CataloguenumberPackquantityManifoldsComposite Manifold (page 21)Control Pack 88UH211 1Starter Pack 88UH110 1One Port Pack 16 88UH111 1Three Port Pack 16 88UH113 1Manifold AncillariesSingle Circuit Control Fittings Pack 16 88UH511 1Pipe Clamps 16 15UH236 2Curved Pipe Supports 16 15UH239 2Composite Manifold 22mmisolation valves 22 88UH311 2230V 2 Wire Actuator(for use with 52UH108)52UH402 124V 2 Wire Actuator(for use with 52UH714)52UH602 1Manifold Cover (up to 4 ports)570 x 500 x 220mm69UH015 1Manifold Cover (up to 8 ports)850 x 500 x 220mm69UH018 1Manifold Cover (up to 12 ports)1090 x 500 x 220mm69UH021 1Control SystemsStandard Controls (page 22)2-zone Control Centre (incl. WirelessProgrammable Thermostat)52UH701 114-zone Control Centre 52UH714 1Thermostat 52UH772 1Programmable Thermostat 52UH773 1Wireless Thermostat 52UH782 1Wireless Programmable Thermostat 52UH783 1Remote Sensor Probe 52UH795 1Networked Controls (page 24)8-zone Control Centre 52UH108 1Programmable LCD Thermostat 52UH873 1Programmable Thermostat(with Touch Screen)52UH863 1Programmable Thermostat(with DHW)52UH874 1Remote Sensor Probe 52UH195 1Remote Sensor Probe Cover 52UH194 1Master LCD Touch Screen Unit 52UH891 1Net Monitor 52UH892 1Single Room Controls (page 22)230V Programmable Thermostat 52UH273 1All other product details are available on request.Symbols Keya British Standards KitemarkIdentifies pipe and fittings which are manufactured underthe BSI Kitemark Certification Scheme.British Board of AgrémentBBA Logo identifies non-Kitemarked fittings which arecovered by a British Board of Agrément Certificate.Email: info@thermoboard.co.uk www.thermoboard.co.uk 27

Surface heating and coolingsolutions by WavinThermoboard –ensuring the right solutionUnder the Thermoboard brand Wavin offers solutions forsurface heating and cooling for domestic and light commercialenvironments. Thermoboard systems and services aredesigned to enable speedy selection and correct installationof the right solution for each situation – ensuring projectsuccess, with complete peace of mind.UFHit’s whatwe doWavin operates a programme of continuous product development, and therefore reserves the right tomodify or amend the specification of their products without notice. All information in this publication isgiven in good faith, and believed to be correct at the time of going to press. However, no responsibilitycan be accepted for any errors,omissions or incorrect assumptions. Users should satisfy themselvesthat products are suitable for the purpose and application intended.WavinUnderfloor Heating DivisionThe Dart BuildingGrenadier RoadExeter Business ParkExeter, Devon EX1 3QFTel: 01392 444 122info@thermoboard.co.ukWavin provides effective solutions for essential needs of daily life: safedistribution of drinking water; sustainable management of rainwater and wastewater; energy efficient heating and cooling for buildings.Wavin’s European leadership, local presence, commitment to innovation andtechnical support, all benefit our customers. We consistently achieve thehighest sustainability standards, ensure total reliability of supply to supportour customers to achieve their objectives.www.thermoboard.co.ukUF437 – January 2012Solutions for Essentials