K10 Soffit Board - tidl.ie

1 INSULATION FOR STRUCTURAL CEILINGS ( soffits ) Premium performance rigidphenolic insulation thermal conductivity as low as Class 0 / Low Risk fire rating Negligible smoke obscuration Designed for use understructural ceilings concrete soffits Eliminates cold bridging Unaffected by air movement Resistant to the passage ofwater vapour Easy to handle and install Ideal for new build andrefurbishment Non deleterious material CFC/HCFC free with zero OzoneDepletion Potential (ODP)PREMIUMPERFORMANCECI/SfbTenth IssueMay 2007( )Rn7M2K10 Soffit BoardInsulation2 Typical Design DetailFigure 1 Directly to Concrete SoffitSpecification ClauseKingspan Kooltherm K10 Soffit Boardshould be described inspecifications as: The Soffit insulation shall be kingspan Kooltherm K10 SoffitBoard____mm thick CFC/HCFC free rigid phenolic insulationcore with autohesively bonded facings on both sidesmanufactured to the highest standards under quality controlsystems approved to BS EN ISO 9001.

2 2000 by KingspanInsulation Limited and shall be applied in accordance with theinstructions issued by soffitKingspanKooltherm K10 Soffit BoardKingspanKooltherm K8 Cavity BoardBlock inner leafConcrete floorOuter leaf of masonryK10 Soffit BoardDesign ConsiderationsSustainabilityIn the past, erroneously, the relative environmental sustainabilityof insulation materials has been compared on the basis ofembodied energy and ozone depletion potential. It is nowrecognised that a much wider basket of embodiedenvironmental impacts (including those caused by theirembodied energy), rather than embodied energy alone, is theonly credible tool of comparison.

3 Time has also annulled ozonedepletion potential as an issue as all insulation materials arenow banned from using CFC and HCFC blowing agents by buildings designed to today s Building Regulations energyuse standards it is now also known that the embodiedenvironmental impacts of all of the materials and labour usedto create a building are insignificant in comparison with thelifetime operational environmental impacts of that building, andso are of very limited importance. Since it is operational energyuse that creates the vast majority of operational environmentalimpact, saving energy by specifying the lowest U valuespossible is the most environmentally sustainable action to , one of the most neglected facts aboutenvironmentally sustainable buildings is that the longevity oftheir standards of operational energy use, and therefore thelongevity of their operational environmental impacts, is performance of some insulants, such as mineral fibre, candeteriorate rapidly if exposed to water penetration, airmovement or compression.

4 This may increase operationalenergy use and hence compromise the environmentalsustainability of the finished building to an alarming insulation materials, such as rigid phenolic or rigidurethane, are not vulnerable to any of these problems. In summary, designers should: (a) specify the lowest possible U value regardless of insulation type; (b) design out the risk of their chosen insulant not performingas specified; and (c) if the latter is not possible, choose an insulant that is at lowrisk of failure a cellular plastic insulation U valuesThe following examples have been calculated using theCombined Method for compliance with Building Regulations /Standards revised after 2002.

5 These examples are based onthe use of kingspan Kooltherm K10 Soffit Board fixeddirectly to the Soffit of a 200 mm concrete deck with 50 mmscreed overlaid. If your construction is any different, pleasecontact the kingspan Insulation Technical Service Department(see rear cover).Combined Method U values were calculated using themethod which has been adopted to bring National standardsin line with the European Standard calculation method, BS / EN ISO 6946: 1997 (Building components andbuilding elements. Thermal resistance and thermaltransmittance. Calculation method).NB When calculating U values to BS / EN ISO 6946: 1997, the type of fixing used may change the thickness of insulation required.

6 These calculations assume the use ofpolypropylene insulation fasteners of thermal conductivity of or less, the effect ofwhich is insignificant. Please contact the kingspan Insulation Technical Service Department(see rear cover) for project calculations. NB For the purposes of these calculations the standard of workmanship has been assumedgood and therefore the correction factor for air gaps has been The figures quoted are for guidance only. A detailed U value calculation together withcondensation risk analysis should be completed for each individual project. Please contact theKingspan Insulation Technical Service Department (see rear cover) for Directly to Concrete SoffitInsulant ThicknessU value ( )(mm) , manufacturers should not rest on their laurels; it is amatter of social responsibility to be open and honest about theenvironmental impact of the manufacture of a product, and afull Life Cycle Analysis (LCA) based on a much wider basket ofenvironmental impacts, rather than embodied energy alone, isrecognised as the preferred tool to achieve this.

7 KingspanInsulation was the first insulation manufacturer to openlycomplete and publish independently certified Ecoprofiles (a type of LCA) on its product ranges. The Ecoprofile for theKingspanTherma range of rigid urethane insulation productswas performed by Building Research Establishment (BRE). The product range comfortably achieves a BRE Green Guide A rating. kingspan Insulation iscurrently completing a BRE Ecoprofile of itsKingspanKooltherm K rangeof rigid phenolicinsulation there is far more to sustainability than whether or not aproduct, process or company affects the environment in apositive or a negative way.

8 A company can, and should,demonstrate its financial viability and social responsibility, aswell as ensure that its materials and methods do not addunduly to the burden placed on the Insulation has now put the manufacture of itsproducts at its Pembridge facility in Herefordshire through arigorous independent appraisal of its economic, social,environmental and natural resource impacts using Arup sSPeAR results show a well balanced performance in terms ofsustainability, and that kingspan Insulation is already meetinglegislation or best practice in most areas, even moving beyondbest practice in some.

9 kingspan Insulation is the first and onlyconstruction material manufacturer to have taken this boldmove and openly publish the on whether the fixing method is directly on to aconcrete Soffit , to timber battens or to a proprietary gridsystem, fixing should proceed as follows:Fixing Directly to Concrete SoffitsKingspan Kooltherm K10 Soffit Boardcan be fully restrainedto a concrete Soffit by the use of 11 No. approved insulationfasteners with a minimum head diameter of 35 mm. Thefasteners should be evenly distributed over the whole area ofthe Board and must offer a minimum 40 mm penetration into asolid substrate.

10 Board joints should preferably be to Timber Battens / Proprietary Grid SystemsAlternatively, a treated timber batten lay-out may be adopted ifthere is an uneven surface or mechanical services present anddirect fixing is not possible. 50 mm x 25 mm battens shouldbe placed at 600 mm centres to coincide with the edges /centre of the boards. The battens should be fixed to the soffitby the use of a suitable fixing method shot-fire maybe Kooltherm K10 Soffit Boardshould then be fixed tothe treated timber battens using suitable fixings. These shouldbe placed at maximum 300 mm centres (maximum 200 mmwhen using nails into timber) in rows not greater than 600 Kooltherm K10 Soffit Boardcan also be fixed to aproprietary grid system comprising metal furring 's advice should be sought regarding the typeand required number of fixings for such applications.