TR26 LPC/FM...TR26 LPC/FM LPS 1181: Part 1 Certificate No. 388b/01 Class 1 Roof Construction Low Energy – Low Carbon Buildings 2 TypicalConstructionsandU–values Assumptions The

CI/Sfb

Seventh Issue March 2011

(27.9) Rn7 M2

� High performance rigid thermosetinsulation – thermal conductivity0.022 W/m.K

� LPCB approved to LPS 1181:Part 1

� FM approved for Class 1 steeldeck roof assemblies

� Fully compatible with mostmechanically fixed single–plywaterproofing systems

� Compatible with most green roofsystems

� Installation technique is ideal forfast track building programmes

� Resistant to the passage ofwater vapour

� Easy to handle and install� Ideal for new build and

refurbishment� Non–deleterious material� Manufactured with a blowing

agent that has zero ODP andlow GWP

I nsu la t ion

INSULATION FOR FLAT ROOFS WATERPROOFED WITHMECHANICALLY FIXED SINGLE–PLY WATERPROOFING

TR26 LPC/FM

LPS 1181: Part 1Certificate No. 388b/01

Class 1 RoofConstruction

Low Energy –Low Carbon Buildings

2

Typical Constructions and U–values

AssumptionsThe U−values in the tables that follow havebeen calculated, under a managementsystem certified to the BBA Scheme forAssessing the Competency of Persons toUndertake U–value and Condensation Risk Calculations, usingthe method detailed in BS / I.S. EN ISO 6946: 2007 (Buildingcomponents and building elements. Thermal resistance andthermal transmittance. Calculation method) and using theconventions set out in BR443 “Conventions for U−valuecalculations”. They are valid for the constructions shown in thedetails immediately above each table.

These examples are based on Kingspan Thermaroof® TR26LPC/FM, waterproofed using a mechanically fixed single–plymembrane. The insulation board is mechanically through asealed metal deck, or over a vapour control layer, which hasitself been loose–laid directly over the type of deck stated foreach application. The ceiling, where applicable, is taken to bea 3 mm skim coated 12.5 mm plasterboard with a cavitybetween it and the underside of the deck.

NB When calculating U–values to BS EN ISO 6946: 2007, the type of mechanical fixing usedmay change the thickness of insulation required. These calculations assume telescopic tubefasteners with a thermal conductivity of 1.00 W/m.K or less, the effect of which is insignificant.

NB For the purposes of these calculations the standard of workmanship has been assumedgood and therefore the correction factor for air gaps has been ignored.

NB The figures quoted are for guidance only. A detailed U–value calculation together withcondensation risk analysis should be completed for each individual project.

NB If your construction is different for those specified and / or to gain a comprehensiveU−value calculation along with a condensation risk analysis for your project please consult theKingspan Insulation Technical Service Department for assistance (see rear cover).

U–value Table KeyWhere an � is shown, the U−value is higher than the worstof the maximum new build area weighted averageU−values allowed by the 2010 Editions of ApprovedDocuments L to the Building Regulations (England &Wales), the 2010 Editions of Technical Handbooks Section6 (Scotland), the 2006 Editions of Technical Booklets F(Northern Ireland), or the 2008 Editions of TechnicalGuidance Documents L* (Republic of Ireland).

* Excluding Change of Use and Material Alterations.

Concrete DeckDense Concrete Deck with Suspended Ceiling

Figure 1

Insulant Thickness U–values (W/m2.K)(mm)

70 �75 0.2580 0.2490 0.22

100 0.20105 0.19110 0.18115 0.17120 0.17125 0.16130 0.16135 0.15140 0.14150 0.14

75 + 80* 0.1380 + 85* 0.1290 + 90 0.11

100 + 100 0.10* Where multiple layers of insulation of different thicknesses are used, the thickest layer shouldbe installed as the outermost layer in the construction.

Damp proof course (DPC) DPC to drain internally orexternally as specified

Waterproofing e.g.single–ply non–bituminousmembrane

150 mmconcrete deck

Telescopic tubefastener

Kingspan Thermaroof®

TR26 LPC/FM

50 mmscreed to falls

Insulation upstand min. 300 mmfrom bottom surface ofhorizontal insulation layer

12.5 mm plasterboardfixed to 25 x 50 mmtimber battens at600 mm centres

KingspanKooltherm® K8Cavity Board taken up as

high as the flat roofinsulation upstand

COMPETENT PERSON CS/1004-1

APPROVALINSPECTIONTESTINGCERTIFICATION

3

Timber DeckTimber Deck with Plasterboard Ceiling

Figure 2

Insulant ThicknessU–values (W/m2.K)

(mm)

70 �75 0.2580 0.2490 0.22

100 0.20105 0.19110 0.18115 0.17120 0.17125 0.16130 0.16135 0.15140 0.14150 0.14

75 + 80* 0.1380 + 85* 0.1290 + 90 0.11


Metal DeckMetal Deck with No Ceiling

Figure 3


(mm)

80 �85 0.2590 0.2495 0.22

100 0.21105 0.20110 0.19120 0.18125 0.17130 0.17135 0.16140 0.15150 0.14

80 + 80 0.1390 + 90 0.1295 + 95 0.11

100 + 100 0.11105 + 105 0.10


Vapour control layer

18 mm plywood deck


50 x 150 mmtimber joists at600 mm centres



Single–ply non–bituminousmembrane



TR26 LPC/FM


Metal deck


Vapour control layer(not required if metaldeck is sealed)



Single–ply non–bituminousmembrane



TR26 LPC/FM

4

Green Roof SystemsExtensive Green Roof Covering – Metal Deck withNo Ceiling

Figure 4


(mm)

80 �85 0.2590 0.2495 0.22

100 0.21105 0.20110 0.19120 0.18125 0.17130 0.17135 0.16140 0.15150 0.14

80 + 80 0.1390 + 90 0.1295 + 95 0.11

105 + 105 0.10

Semi−Intensive Green Roof Covering – Dense ConcreteDeck with Suspended Ceiling

Figure 5


(mm)

70 �75 0.2580 0.2490 0.22

100 0.20105 0.19110 0.18115 0.17120 0.17125 0.16130 0.16135 0.15140 0.14150 0.14

75 + 80* 0.1380 + 85* 0.1290 + 90 0.11


Extensive green roof covering

Substrate to depth required

Filtration layer

Drainage layer

Roof barrier /protective layer(s)

Kingspan Thermaroof® TR26 LPC/FM Metal decking (trough widthappropriate to weight of green

roof system applied)

Vapour control layer(not required if metal

deck is sealed)

Single–plynon–bituminousmembrane

Telescopic tube fastener

Telescopictubefastener

Semi−intensive green roof covering

Substrate to depth required

Filtration layer

Drainage layer

Roof barrier /protective layer(s)

Single–plynon–bituminousmembrane

Kingspan Thermaroof® TR26 LPC/FM

Vapour control layer12.5 mm plasterboard fixedto 25 x 50 mm timberbattens at 600 mm centres

150 mmconcrete deck

50 mmscreed to falls

Environmental Profiles SchemeCertificate Number ENP 409

Specification ClauseKingspan Thermaroof® TR26 LPC/FM should be described inspecifications as:–

The roof insulation shall be Kingspan Thermaroof® TR26LPC/FM ____mm thick: comprising a high performance rigidthermoset insulation core faced on both sides with a lowemissivity composite foil facing. The product shall bemanufactured: with a blowing agent that has zero OzoneDepletion Potential (ODP) and low Global Warming Potential(GWP); in accordance with the requirements of BS 4841–4;under a management system certified to BS / I.S. EN ISO9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S.OHSAS 18001: 2007; by Kingspan Insulation Limited; andinstalled in accordance with the instructions issued by them.

NBS SpecificationsDetails also available in NBS Plus.NBS users should refer to clause(s):J42 420, J42 430 (Standard and Intermediate)J42 10 (Minor Works).

Wind LoadingWind loadings should be assessed in accordance withBS 6399–2: 1997 (Loadings for buildings. Code of practice forwind loads) or BS / I.S. EN 1991–1–4: 2005 (National Annex toEurocode 1 Actions on Structures. General Actions. WindActions) taking into account:

� length / width / height of the building;

� orientation of the building;

� wind speed;

� aspect (e.g. on a hill side); and

� topographical value of the surrounding area.

FallsThe fall on a flat roof, constructed using KingspanThermaroof® TR26 LPC/FM, is normally provided by thesupporting structure being directed towards the rainwateroutlets. The fall should be smooth and steep enough to preventthe formation of rainwater ponds. In order to ensure adequatedrainage, BS 6229: 2003 (Flat roofs with continuouslysupported coverings. Code of practice) recommends uniformgradients of not less than 1 in 80. However, because of buildingsettlement, it is advisable to design in even greater falls.These can be provided by a Kingspan Thermataper® LPC/FMtapered roofing system (see below).

5

Design Considerations

Linear Thermal BridgingReasonable provision must be made to limit the effects of coldbridging. The design should ensure that roof–light or ventilatorkerbs etc. are always insulated with the same thickness ofKingspan Thermaroof® TR26 LPC/FM as the general roofarea. A 25 mm thick Kingspan Thermaroof® TR27 LPC/FMupstand should be used around the perimeter of the roof onthe internal façade of parapets. A minimum distance of300 mm should be maintained between the top of theinsulation upstand and the bottom of the horizontal roofinsulation. Wall insulation should also be carried up intoparapets as high as the flat roof insulation upstand. Pleasecontact the Kingspan Insulation Technical Service Department(see rear cover) for further advice.

Environmental Impact &Responsible SourcingGreen Guide RatingAn Ecoprofile, certified by BRE Certification to the 2008BRE Environmental Profiles Methodology, has been createdfor Kingspan Thermaroof® TR26 LPC/FM produced atKingspan Insulation’s British manufacturing facilities.The BRE has assigned the product a 2008 Green GuideSummary Rating of A+.

Responsible SourcingKingspan Thermaroof® TR26 LPC/FM is manufactured undera management system certified to BS / I.S. EN ISO 14001:2004. The principle polymer components of the product arealso manufactured under management systems certified toEN ISO 14001: 2004.

NB The above information is correct at the time of writing. Please confirm at the point of needby contacting Kingspan Insulation’s Technical Service Department (see rear cover), from whichcopies of Kingspan Insulation and its suppliers’ ISO 14001 certificates can be obtained alongwith confirmation of Kingspan Insulation's products' Green Guide ratings.

Sustainability & ResponsibilityKingspan Insulation has a long–term commitment tosustainability and responsibility: as a manufacturer and supplierof insulation products; as an employer; as a substantiallandholder; and as a key member of its neighbouringcommunities.

A report covering the sustainability and responsibility ofKingspan Insulation Ltd’s British operations is available atwww.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Tapered RoofingKingspan Thermaroof® TR26 LPC/FM is also available in atapered version, Kingspan Thermataper® TT46 LPC/FM,comprising a high performance rigid thermoset insulation core,manufactured with a blowing agent that has zero OzoneDepletion Potential (ODP) and low Global Warming Potential(GWP), faced on both sides with a low emissivity compositefoil facing. Kingspan Thermataper® TT46 LPC/FM comes witha supporting design service. This ensures that the mostcost−effective solution for a roof is identified and that the endresult is a tapered system design which meets a roof'srainwater run−off and insulation requirements. Further detailsof Kingspan Thermataper® TT46 LPC/FM are available fromthe Kingspan Insulation Tapered Roofing Department (see rearcover), which should be consulted as early as possible in theprocess of designing a roof.

Roof WaterproofingKingspan Thermaroof® TR26 LPC/FM is suitable for usewith most mechanically fixed single–ply waterproofingmembranes.

Please Note: Kingspan Thermaroof® TR26 LPC/FM is not suitable for use with bitumen basedbuilt–up waterproofing systems or mastic asphalt.

Water Vapour ControlKingspan Thermaroof® TR26 LPC/FM should be installed overa separate vapour control layer, in new build roofs, unless it isbeing used in conjunction with a sealed metal deck. Regardlessof the deck type it is recommended that a condensation riskanalysis is carried out for every project.

For refurbishment projects, involving the addition of insulation toexisting insulated flat roofs, or roofs constructed of insulatedsteel faced composite panels, it is imperative that a U–valuecalculation and condensation risk analysis is carried out forevery project, in order to ensure that the correct thickness ofinsulation is installed to achieve the required thermalperformance, whilst avoiding interstitial condensation.

In refurbishment projects, where Kingspan Thermaroof® TR26LPC/FM is to be installed over an existing bituminouswaterproofing membrane, the membrane can be used as avapour control layer, as long as it is in a good water tightcondition. Where this is not the case, a separate vapour controllayer should be installed.

A minimum separate vapour control layer should consist of a1000 gauge (250 micron) polythene sheet, with all joints lappedand then sealed with double sided self adhesive tape.

Roof Loading / TrafficKingspan Thermaroof® TR26 LPC/FM is suitable for use onaccess roof decks subject to limited foot traffic.

Where inappropriate foot traffic is liable to occur it isrecommended that the roof surface is protected by speciallyconstructed walk–ways.

For further advice on the acceptability of specific foot trafficregimes, please contact the Kingspan Insulation TechnicalService Department (see rear cover).

Green RoofsKingspan Thermaroof® TR26 LPC/FM is suitable for useunder most green roof systems.

Green roof systems are a specialist design area.When designing a loose–laid insulated green roof assemblyconsideration needs to be given to the following.

Green roof systems are required to have a minimum dry weightof 80 kg/m2 to ballast the insulation boards beneath them.However, the total required dry weight will depend upon winduplift, which in turn will vary with the geographical location ofthe building, local topography, and the height and width of theroof concerned. The necessity for any additional dry weightshould be assessed in accordance with BS 6399−2: 1997(Loading for Buildings. Code of practice for wind loads) orBS / I.S. EN 1991−1−4: 2005 (National Annex to Eurocode 1Actions on structures. General Actions. Wind Actions).

When installing a loose–laid insulated green roof assembly,any insulation must be immediately over–laid with the greenroof system, which must meet all of the requirementsoutlined above.

Where these requirements cannot be ensured, the insulationmust be mechanically fixed (see Sitework). For furtherinformation please contact the Kingspan Insulation TechnicalService Department (see rear cover).

Lightning ProtectionBuilding designers should give consideration to therequirements of BS / I.S. EN 62305: 2006 (Protectionagainst lightning).

6

Installing over Metal Decks� Where an FM or LPCB approved construction is required,

please refer to ‘LPCB & FM Certification’ on page 13.

� Metal decks should be clean, dry, without largeprojections, steps or gaps, and should be graded to allowcorrect falls to all rainwater outlets.

� If using a sealed metal deck there is no requirement for aseparate vapour control layer.

� If the metal deck is not sealed the vapour control layershould be loose–laid.

� Where one run of the specified vapour control layer lapsanother, there should be minimum 150 mm side and endoverlaps, which should be adequately sealed.

� Turn up the vapour control layer at the edge of the roofto a height appropriate to the specified waterproofingmembrane.

� Boards of Kingspan Thermaroof® TR26 LPC/FM shouldbe secured to the deck using mechanical fixings e.g.telescopic tube fasteners (see ‘Mechanical Fixings’).

� Insulation boards should always be laid break–bonded,either with their long edges at right angles to the troughopenings, or diagonally across the corrugation line, andwith joints lightly butted. There should be no gaps atabutments.

� Roof–light or ventilator kerbs etc. should always insulatedwith the same thickness of Kingspan Thermaroof® TR26LPC/FM as the general roof area.

� A 25 mm thick Kingspan Thermaroof® TR26 LPC/FMupstand should be used around the perimeter of the roofon the internal façade of parapets.

� A minimum distance of 300 mm should be maintainedbetween the top of the insulation upstand and the bottomof the horizontal roof insulation.

� The waterproofing membrane is also mechanically fixed inaccordance with the membrane manufacturer’sinstructions, over the whole insulated area including anyinsulation upstands, as soon as possible after laying theinsulation boards.

Installing over Concrete Decks� Concrete decks should be clean, dry, without large

projections, steps or gaps, and should be graded to allowcorrect falls to all rainwater outlets.

� The vapour control layer should be loose–laid over thedeck.




� Insulation boards should always be laid break–bonded,either with their long edges at right angles to the edge of,or diagonally across the roof, and with joints lightly butted.There should be no gaps at abutments.





7

Sitework

8

Installing over Plywood Decks� Timber decks should be clean, dry, without large

projections, steps or gaps, and should be graded to allowcorrect falls to all rainwater outlets.

� The vapour control layer should be temporarily stapled ornailed to the deck.





� Joints between insulation boards should not coincide withthose between the plywood sheets.





Installing over Existing Flat Roofs� The existing waterproofing membrane surface should be

clean, dry, without large projections, steps or gaps, andshould be graded to allow correct falls to all rainwateroutlets.

� Where the existing waterproofing membrane is not fit forpurpose as a vapour control layer, a separate vapourcontrol layer should be loose–laid over it.


� Turn up the vapour control layer at the edge of the roof toa height appropriate to the specified new waterproofingmembrane.

� Boards of Kingspan Thermaroof® TR26 LPC/FM shouldbe secured to the deck using mechanical fixings e.g.telescopic tube fasteners (see `Mechanical Fixings').





� The waterproofing membrane is installed in accordancewith the membrane manufacturer's instructions, over thewhole insulated area including any insulation upstands, assoon as possible after laying the insulation boards.

9

Mechanical Fixings� The number of mechanical fixings required to fix

Kingspan Thermaroof® TR26 LPC/FM will vary with thegeographical location of the building, the local topography,and the height and width of the roof concerned along withthe deck type.

� A minimum of 6 fixings are required to secure boards ofKingspan Thermaroof® TR26 LPC/FM to the deck.

� The requirement for additional fixings should be assessedin accordance with BS 6399–2: 1997 (Loadings forbuildings. Code of practice for wind loads) or BS / I.S. EN1991−1.4: 2005 (National Annex to Eurocode 1. Actionson structures, General Actions, Wind Actions).

� Mechanical fixings must be arranged in an even pattern.

� Fasteners at insulation board edges must be located > 50mm and < 150 mm from edges and corners of the boardand not overlap board joints.

� Please refer to page 11 for recommended fixing patterns.

� Each fixing should incorporate a square or circular platewasher (50 x 50 mm or 50 mm diameter).

� If two layers of insulation are to be installed, the base layershould be mechanically fixed with minimum 1 No. fixingin the centre of the board before fixing the top layer asdescribed above.

� Where alternative mechanical fixing systems are specified,such as bar fixing systems, the specified system must givesimilar restraint to the insulation board as would be attainedby the use of conventional telescopic tube fasteners.

Installing over Existing CompositePanel Roofs� If the existing profile provides inadequate support for the

insulation boards, the existing roof should beover–boarded, e.g. with plywood, prior to their installation.

� Boards of Kingspan Thermaroof® TR26 LPC/FM shouldbe secured to the deck using mechanical fixings.Please refer to the Kingspan Insulation Technical AdviceService (see rear cover) for advice on fixing specification.

� Insulation boards should always be laid break–bonded andwith joints lightly butted. There should be no gaps atabutments. If the existing roof has been over–boarded,then insulation boards should be laid with their long edgesat right angles to the edge of, or diagonally across theroof. If not, they should be laid either with their long edgesat right angles to the trough openings, or diagonally acrossthe corrugation line


� The waterproofing membrane is installed in accordancewith the membrane manufacturer's instructions, over thewhole insulated area including any insulation upstands, assoon as possible after laying the insulation boards.

10

GeneralFollowing Trades� The roof must be adequately protected when building

works are being carried out on or over the roof surface.This is best achieved by close boarding. The completedroof must not be used for storage of heavy buildingcomponents such as bricks or air conditioning equipment.

Daily Working Practice� At the completion of each day’s work, or whenever work

is interrupted for extended periods of time, a night jointmust be made in order to prevent water penetration intothe roof construction.

Cutting� Cutting should be carried out either by using a fine

toothed saw, or by scoring with a sharp knife, snappingthe board over a straight edge and then cutting the facingon the other side.

� Ensure accurate trimming to achieve close–butting jointsand continuity of insulation.

Availability� Kingspan Thermaroof® TR26 LPC/FM is available

through specialist insulation distributors and selectedroofing merchants throughout the UK and Ireland.

Packaging and Storage� The polyethylene packaging of Kingspan Insulation

products, which is recyclable, should not be consideredadequate for outdoor protection.

� Ideally, boards should be stored inside a building.If, however, outside storage cannot be avoided, thenthe boards should be stacked clear of the ground andcovered with an opaque polythene sheet or weatherprooftarpaulin. Boards that have been allowed to get wetshould not be used.

Health and Safety� Kingspan Insulation products are chemically inert and

safe to use.

� A Safety Information Data Sheet for this product isavailable from the Kingspan Insulation websitewww.kingspaninsulation.co.uk/safety orwww.kingspaninsulation.ie/safety.

Please note that the reflective surface on this product is designed to enhance its thermalperformance. As such, it will reflect light as well as heat, including ultraviolet light. Therefore, ifthis board is being installed during very bright or sunny weather, it is advisable to wear UVprotective sunglasses or goggles, and if the skin is exposed for a significant period of time, toprotect the bare skin with a UV block sun cream.

The reflective facing used on this product can be slippery underfoot when wet. Therefore, it isrecommended that any excess material should be contained to avoid a slip hazard.

Warning – do not stand on or otherwise support your weight on this board unless it is fullysupported by a load bearing surface.

Installing in Two Layers� In situations where two layers of insulation are required,

both layers should be installed in the same manner, asdetailed in the preceding sections. However, refer to‘Mechanical Fixings’ for guidance on the number of fixingsto be used in each layer.

� In all cases, the layers should be horizontally offsetrelative to each other so that, as far as possible, the boardjoints in the two adjacent layers do not coincide with eachother (see Figure 6).

Figure 6 Offsetting of Multiple Insulation Layers

First insulation layer

Second insulation layer, if required,offset relative to first.

11

Mechanical Fixing Patterns

Recommended Fixing PatternsThe recommended fixing patterns for Kingspan Thermaroof® TR26 LPC/FM are shown below. The number of fixingsnecessary should be assessed in accordance with BS 6399−2: 1997 (Loadings for buildings. Code of practice for wind loads)or BS / I.S. EN 1991–1.4: 2005 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions).

The images below show the recommended fixing pattern, the number of fixings used and the resulting fixing rate shown as thenumber of fixings per m2.

NB Mechanical fixings e.g. telescopic tube fasteners, must be arranged in an even pattern. Fasteners at board edges must be located > 50 mm and < 150 mm from edges and corners of the boardand not overlap board joints.

6 No. per board(2.4 x 1.2 m board – 2.08 fixings / m2)












12

The FacingsKingspan Thermaroof® TR26 LPC/FM is faced on both sideswith a low emissivity composite foil, autohesively bonded tothe insulation core during manufacture.

The CoreThe core of Kingspan Thermaroof®

TR26 LPC/FM is manufactured withNilflam® technology, a high performancerigid thermoset polyisocyanurate (PIR) insulantmanufactured with a blowing agent that haszero Ozone Depletion Potential (ODP) andlow Global Warming Potential (GWP).

Standards and ApprovalsKingspan Thermaroof® TR26 LPC/FM is manufactured to thehighest standards in accordance with requirements BS 4841–4(Rigid polyisocyanurate (PIR) and polyurethane (PUR) productsfor building end–use applications. Specification for laminatedboards (roofboards) with auto–adhesively or separately bondedfacings for use as roofboard thermal insulation under single–plyroofing membranes).

Kingspan Thermaroof® TR26 LPC/FM is also manufacturedto the highest standards under a management systemcertified to BS / I.S. EN ISO 9001: 2008 (Quality managementsystems. Requirements), BS / I.S. EN ISO 14001: 2004(Environmental Management Systems. Requirements) andBS / I.S OHSAS 18001: 2007 (Health and Safety ManagementSystems. Requirements).

Standard DimensionsKingspan Thermaroof® TR26 LPC/FM is available in thefollowing standard size:

Nominal Dimension Availability

Length (m) 2.4Width (m) 1.2Insulant Thickness (mm) Refer to local distributor or

Kingspan Insulation price list forcurrent stock and non–stock sizes.

Compressive StrengthThe compressive strength of Kingspan Thermaroof® TR26LPC/FM typically exceeds 150 kPa at 10% compression,when tested to BS / I.S. EN 826: 1996 (Thermal insulatingproducts for building applications. Determination ofcompression behaviour).

Water Vapour ResistanceAdjusted for the effect of board joints, the product achieves aresistance greater than 100 MN.s/g, when tested inaccordance with BS EN 12086: 1997 / I.S. EN 12086: 1998(Thermal insulating products for building applicationsDetermination of water vapour transmission properties).Kingspan Thermaroof® TR26 LPC/FM should always beinstalled over a vapour control layer or sealed metal deck(see ‘Water Vapour Control’ on page 6).

DurabilityIf correctly installed, Kingspan Thermaroof® TR26 LPC/FMcan have indefinite life. Its durability depends on the supportingstructure and the conditions of its use.

Resistance to Solvents, Fungi & RodentsThe insulation core is resistant to short–term contact withpetrol and with most dilute acids, alkalis and mineral oils.However, it is recommended that any spills be cleaned off fullybefore the boards are installed. Ensure that safe methods ofcleaning are used, as recommended by the suppliers of thespilt liquid. The insulation core is not resistant to somesolvent–based adhesive systems, particularly those containingmethyl ethyl ketone. Adhesives containing such solventsshould not be used in association with this product. Damagedboards or boards that have been in contact with harshsolvents or acids should not be used.

The insulation core and facings used in the manufactureof Kingspan Thermaroof® TR26 LPC/FM resist attack bymould and microbial growth, and do not provide any foodvalue to vermin.

Product Details

13

Fire PerformanceKingspan Thermaroof® TR26 LPC/FM, when subjectedto the British Standard fire test specified in the table below, willachieve the result shown, when waterproofed with a single–plywaterproofing membrane.

Test Result

BS 476–3: 2004 Dependent on single–ply(External fire exposure roof test) membrane adopted

Further details on the fire performance of Kingspan Insulationproducts may be obtained from the Kingspan InsulationTechnical Service Department (see rear cover).

LPCB & FM CertificationFM CertificationKingspan Thermaroof® TR26 LPC/FM is certified as achievingClass 1 Insulated Steel Deck Pass to Factory Mutual ResearchStandards 4450: 1989 (Approval Standard for Class 1 InsulatedSteel Deck Pass) and 4470: 2010 (Approval Standard forSingle–Ply, Polymer–Modified Bitumen Sheet, Built–Up Roof(BUR) and Liquid Applied Roof Assemblies for use in Class 1Noncombustible Roof Deck Construction), subject to theconditions of approval as a roof insulation product for use inClass 1 roof constructions as described in the current edition ofthe Factory Mutual Research Approval Guide.

For further details please contact the Kingspan InsulationTechnical Service Department (see rear cover) or alternativelysearch for “Thermaroof® TR26 LPC/FM” or approvalreference number 388b/01 on www.redbooklive.com.

Product Thickness Vapour Grade LPCB(mm) Control Ref No.

Kingspan 30 – 120 Sealed metal EXT − B 388b/01Thermaroof® in a deck orTR26 LPC/FM single layer separate vapour

control layer

LPCB CertificationMetal deck roofing constructions incorporating KingspanThermaroof® TR26 LPC/FM, produced at KingspanInsulation’s Pembridge and Castleblayney manufacturingfacilities, have been successfully tested to LPS 1181: Part 1(Requirements and Tests for Built–up Cladding and SandwichPanel Systems for use as the External Envelope of Buildings).The table below indicates the LPCB listed approvals forKingspan Thermaroof® TR26 LPC/FM.

Thermal Properties

The λ–values and R–values detailed below are quotedin accordance with BS / I.S. EN 13165: 2008 (Thermalinsulation products for buildings – Factory made rigidpolyurethane foam (PUR) products – Specification).

Thermal ConductivityThe boards achieve a thermal conductivity (λ–value) of0.022 W/m.K.

Thermal ResistanceThermal resistance (R–value) varies with thickness and iscalculated by dividing the thickness of the board (expressedin metres) by its thermal conductivity. The resulting number isrounded down to the nearest 0.05 (m2.K/W).

Insulant Thickness Thermal Resistance(mm) (m2.K/W)

70 3.1580 3.6085 3.8590 4.0595 4.30

100 4.50105 4.75110 5.00115 5.20120 5.45125 5.65130 5.90135 6.10140 6.35150 6.80

NB Refer to local distributor or Kingspan Insulation price list for current stock andnon–stock sizes.

LPS 1181: Part 1Certificate No. 388b/01

Class 1 RoofConstruction

Kingspan Insulation LtdPembridge, Leominster, Herefordshire HR6 9LA, UK

Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk www.kingspaninsulation.ie

® Kingspan, Kooltherm, Nilflam, Thermaroof, Thermataper, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved.Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456.

Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Customer ServiceFor quotations, order placement and details of despatches pleasecontact the Kingspan Insulation Customer Service Department onthe numbers below:

UK – Tel: +44 (0) 1544 388 601– Fax: +44 (0) 1544 388 888– email: [email protected]

Ireland – Tel: +353 (0) 42 979 5000– Fax: +353 (0) 42 975 4299– email: [email protected]

Literature & SamplesKingspan Insulation produces a comprehensive range of technicalliterature for specifiers, contractors, stockists and end users.The literature contains clear ‘user friendly’ advice on typicaldesign; design considerations; thermal properties; siteworkand product data.

Available as a complete Design Manual or as individual productbrochures, Kingspan Insulation technical literature is an essentialspecification tool. For copies please contact the KingspanInsulation Marketing Department, or visit the Kingspan Insulationwebsite, using the details below:

UK – Tel: +44 (0) 1544 387 384– Fax: +44 (0) 1544 387 484– email: [email protected]– www.kingspaninsulation.co.uk/literature

Ireland – Tel: +353 (0) 42 979 5000– Fax: +353 (0) 42 975 4299– email: [email protected]– www.kingspaninsulation.ie/literature

Tapered RoofingFor technical guidance, quotations, order placement anddetails of despatches please contact the Kingspan InsulationTapered Roofing Department on the numbers below:



Technical Advice / DesignKingspan Insulation supports all of its products with a comprehensiveTechnical Advisory Service for specifiers, stockists and contractors.

This includes a computer–aided service designed to give fast,accurate technical advice. Simply phone the Kingspan InsulationTechnical Service Department with your project specification.Calculations can be carried out to provide U–values, condensation/ dew point risk, required insulation thicknesses etc… Thereafterany number of permutations can be provided to help you achieveyour desired targets.

The Kingspan Insulation Technical Service Department can alsogive general application advice and advice on design detailing andfixing etc... Site surveys are also undertaken as appropriate.

The Kingspan Insulation British Technical ServiceDepartment operates under a managementsystem certified to the BBA Scheme forAssessing the Competency of Persons toUndertake U–value and Condensation Risk Calculations.

Please contact the Kingspan Insulation Technical ServiceDepartment on the numbers below:



General EnquiriesFor all other enquiries contact Kingspan Insulation on thenumbers below:



Kingspan Insulation Ltd. reserves the right to amend product specifications without prior notice.Product thicknesses shown in this document should not be taken as being available ex–stockand reference should be made to the current Kingspan Insulation price–list or advice soughtfrom Kingspan Insulation’s Customer Service Department (see above left). The information,technical details and fixing instructions etc. included in this literature are given in good faith andapply to uses described. Recommendations for use should be verified for suitability andcompliance with actual requirements, specifications and any applicable laws and regulations.For other applications or conditions of use, Kingspan Insulation offers a Technical AdvisoryService (see above), the advice of which should be sought for uses of Kingspan Insulationproducts that are not specifically described herein. Please check that your copy of this literatureis current by contacting the Kingspan Insulation Marketing Department (see left).

Kingspan Insulation Ltd is a member of:The Single Ply Roofing Association

Contact Details

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