TEK structural insulated panels 4cms.esi.info/Media/documents/Kings_TEK4_ML.pdf · 2016. 6. 21. · Kingspan TEK Building Systemwall panel, a single layer of 12.5 mm vapour check

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Project Name: Center ParcsLocation: Sherwood Forest, NottinghamshireBuilding Use: Guest AccommodationNumber of Units: 4 Four Bed VillasClient: Center ParcsArchitect: Jackson Design AssociatesContractor: Robert Woodhead Ltd

Project Name: Center ParcsLocation: Sherwood Forest, NottinghamshireBuilding Use: Guest AccommodationNumber of Units: 30 ApartmentsClient: Center ParcsArchitect: Jackson Design AssociatesContractor: Robert Woodhead Ltd

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Design

APPLICATIONS

The Kingspan TEK Building System can be used tocreate buildings with a maximum of 2 storeys plusa room-in-roof construction. Because the panels arelight weight compared to brick and block, at 25 kg/m2, they are ideal for use, where heavyconstructions are not possible.

Long lasting external weather proofing is a necessarypart of the Kingspan TEK Building System. Also, theSystem is not recommended for cellars or basementconstructions.

If a building guarantee is required e.g. 10 yearwarranty from NHBC, then guidance should besought from the organisation offering the guarantee.Typically, a third party independent certificate wouldbe required e.g. BBA or IAB certificate.

RECOMMENDED CONSTRUCTIONS

INTERNAL/PARTITION WALLSInternal walls can be built using Kingspan TEKBuilding System wall panels or timber / steel studs.

Where cabled services are required, it isrecommended that they be fixed into a timber or steelstud wall. However, where cabled services need tobe fixed to an internal wall that is constructed fromKingspan TEK Building System wall panels there aretwo options:

● single layer of 12.5 mm plasterboard on min.10 mm deep by 38 mm wide vertical timberbattens; or

● double layer of 12.5 mm plasterboard – the layerclosest to the Kingspan TEK Building System wallpanel should be chased out to create a cavity forservices. The second layer should be 12.5 mmplasterboard.

Where cabled services do not need to be fixed to theKingspan TEK Building System wall panel, a singlelayer of 12.5 mm plasterboard can be fixed direct tothe wall panel.

EXTERNAL WALLSInternal CladdingAll Kingspan TEK Building System wall panelsshould be lined internally with vapour checkplasterboard*.

Where services need to be fixed on an externalKingspan TEK Building System wall, there are twooptions for creating a service cavity:

● single layer of 12.5 mm plasterboard on min.10 mm deep by 38 mm wide vertical timberbattens; or

● double layer of 12.5 mm plasterboard – the layerclosest to the Kingspan TEK Building System wallpanel should be chased out to create a cavity forservices. The second layer should be 12.5 mmvapour check plasterboard.*

Where cabled services do not need to be fixed to theKingspan TEK Building System wall panel, a singlelayer of 12.5 mm vapour check plasterboard* canbe fixed direct to the wall panel.

External CladdingBefore cladding Kingspan TEK Building Systemwalls, a non-tenting breather membrane (e.g.Kingspan nilvent™) should be fixed direct to thewall panels. A minimum cavity of 15 mm should bemaintained between the breather membrane and thewall cladding.

DESIGN FLEXIBILITY

The Kingspan TEK Building System leaves amplescope for individual design. The panels are cut at ourmanufacturing plant according to individualconstruction plans. The complete System is deliveredto site ready for erection.

The Kingspan TEK Building System can be used tocreate the walls (loadbearing and non-loadbearing),roofs and floors of a complete building. Alternatively,roof and wall elements of it can be used individuallywith other non-Kingspan TEK Building Systemcomponents. For example the Kingspan TEK BuildingSystem can be used as a roofing system inconjunction with masonry or timber frame walls.

The Kingspan TEK Building System can be erectedon any flooring system, however the foundations musthave specific tolerances as per guidance in theKingspan TEK Building System Construction Manual.

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The following are wall cladding options for theKingspan TEK Building System:

● outer leaf of brickwork / stone, ensuring aminimum 50 mm cavity is maintained between thebreather membrane and the brickwork;

● masonry spray render coating carried on acementitious particle board which is supported bymin. 25 mm deep by 50 mm wide verticaltreated timber counter battens;

● feather edge timber boarding on min. 25 mmdeep by 50 mm wide vertical treated timbercounter battens;

● wall tiling mounted on tiling battens which aresupported by min. 25 mm deep by 50 mm widevertical treated timber counter battens;

● proprietary brick slip system supported by min.25 mm deep by 50 mm wide vertical treatedtimber counter battens; and

● masonry spray render coating with a brick slipfinish, carried on a cementitious particle boardwhich is supported by min. 25 mm deep by 50mm wide vertical treated timber counter battens.

If other wall cladding options are being considered,contact Kingspan Insulation Technical Services (seerear cover).

SEPARATING WALLSBoth Kingspan TEK Building System wall panels thatform the separating wall should be lined with (in orderof application):

● 9.5 mm plasterboard;

● 19 mm gypsum plank; and

● 12.5 mm vapour check plasterboard*;

ROOFSInternal CladdingAll Kingspan TEK Building System roof panelsshould be lined internally with vapour checkplasterboard*.

Where services need to be fixed on a Kingspan TEKBuilding System roof panel, there are two options forcreating a service cavity:

● single layer of 12.5 mm vapour checkplasterboard* on min. 10 mm deep by 38 mmwide vertical timber battens; or

● double layer of 12.5 mm plasterboard – the layerclosest to the Kingspan TEK Building System roofpanel should be chased out to create a cavity forservices. The second layer should be 12.5 mmvapour check plasterboard.*

Where services do not need to be fixed to theKingspan TEK Building System roof panel, a singlelayer of 12.5 mm vapour check plasterboard* canbe fixed direct to the roof panel.

External CladdingBefore cladding the Kingspan TEK Building Systemroofs, a non tenting breather membrane (e.g.Kingspan nilvent™) should be fixed direct to theroof panels.

All cladding options should be supported by 38 mmx 38 mm vertical treated timber counter battens.

The cladding options available for Kingspan TEKBuilding System roofs are:

● tiles on tiling battens;

● slates on slate battens; or

● profiled metal sheeting onto horizontal battens.

If other wall cladding options are being consideredcontact Kingspan Insulation Technical Services (seerear cover).

The roof cladding option should be decided upon atthe earliest opportunity, as loading design values mustbe calculated when designing your project in theKingspan TEK Building System.

*Calculations in accordance with BS 5250: 1989 (1995) (Code ofpractice for control of condensation in buildings) will determine whetherthere is a requirement for a vapour control layer with the KingspanTEK Building System. However, it is always good practice to install avapour control layer as buildings have a tendency to alter theirpsychrometric conditions (relative humidity) through change of use.

This can be installed in the conventional manner, using 500 gaugepolythene sheet, or by using vapour check plasterboard.

Free condensation risk calculations for specific projects are availableupon request from the Kingspan Insulation Technical ServicesDepartment (see rear cover). These calculations are performed to BS 5250: 1989 (1995) (Code of practice for control ofcondensation in buildings).

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Design

Figure 2 MVHR SYSTEM

heat from outgoing air and preheat the incoming airwith recovered heat. This heat recovery can provide alarge proportion of the heat required to keep a buildingat comfortable living temperatures.

Contact any supplier of domestic scale mechanicalventilation with heat recovery systems, for specific sizingof equipment and the environmental and improvedindoor air quality benefits associated with these systems.

The addition of humidity control to the mechanicalventilation system can provide for an environment inwhich dust mites cannot thrive. This may be of benefitto some asthma sufferers.

The benefits of MVHR in conjunction with theKingspan TEK Building System are discussed indetail in the “Kingspan TEK Building System EnergyPerformance White Paper”. Copies are availablefrom the Kingspan Insulation Marketing Department(see rear cover).

As second best there are another two possibilities:Passive Stack Ventilation (PSV) Systems.

Controlled passive stack ventilation operates on simplenatural principle.

Ducts run from ‘wet’ rooms - kitchens, bathrooms etc. -up to roof terminals. Warm moisture-laden air rises upthe ducts by the stack effect, requiring no electric fanor power source. These ducts can have humiditycontrolled vents e.g. they become activated whenhumidity levels reach a set point.

Figure 3 PASSIVE STACK VENTILATION SYSTEM

VENTILATION

THE NEED FOR VENTILATION The Kingspan TEK Building System can beconsiderably more airtight than conventionalconstructions, achieving air leakage rates as low as0.08 air changes per hour at normal pressures.

It is widely accepted that healthy buildings require aminimum air leakage rate of 0.5 air changes per hourat normal pressures. This is normally achieved withconventional construction techniques, but may not beachieved with buildings constructed using theKingspan TEK Building System.

Therefore additional ventilation may be a sensibleand beneficial addition to a building constructed withthe Kingspan TEK Building System.

The Building Regulations / Standards encouragearchitects and builders to ‘Build Tight, Ventilate Right’.This means controlled ventilation. What is the point ofconstructing airtight buildings and then cutting holes(eg. vents in window frames) in them to createuncontrolled air leakage. Introducing controlledventilation is considered good practice in energy terms.

VENTILATION OPTIONSOne method seems to offer the best solution: Mechanical Ventilation (with Heat Recovery) Systems(MVHR).

These systems bring controlled volumes of fresh air intothe home or building and exhaust controlled volumes ofmoisture laden or stale air to the outside. With theaddition of heat recovery, these systems can recover

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Wall or window inlets provide a flow of replacementfresh air into the building as required. In order toprovide fresh air in living areas these inlets may needto be placed in dry rooms. These inlets could behumidity controlled, but the building will still needventilation when these rooms have low humidity andtherefore closed vents. Humidity controlled inletswould appear to be counter productive in a buildingconstructed with the Kingspan TEK Building System.

The position of inlets and extract ducts ensure that airalways moves from ‘dry’ rooms to ‘wet’ rooms, whereit is extracted.

Disadvantages - the system may need inlets in ‘dry’rooms for it to provide adequate ventilation in a veryair tight building. These inlets may have to remainpermanently open and thus provides paths forunwanted wind-generated air leakage. Althoughdesired ventilation could be achieved, there is a riskthat undesired over-ventilation could compromise theenergy performance of the building. Why build tightto keep energy use down then cut holes in the systemto allow uncontrolled ventilation?

Advantages - while heat recovery is not an option, thesystem operates with no energy use.

Positive Input Ventilation (PIV) Systems.These systems act rather like mechanical extract inreverse. A fan blows air into a property andeffectively pressurises the building. In a building with‘normal’ levels of air-tightness, this air is forced outthrough normal air-leakage pathways e.g. cracks,poorly fitting doors and windows etc., taking moistureand air pollutants with it.

In a very airtight building these pathways may notoccur to any useful extent and so extract ventilationports may have to be provided. As with PSV, theposition of inlet ducts and extract ventilation portsensure that air always moves from ‘dry’ rooms to ‘wet’rooms, where it is extracted. These extract ventilationports could be humidity controlled, but the building will still need ventilation when these ‘wet’ rooms havelow humidity and therefore closed vents. Humiditycontrolled inlets would appear to be counter productivein a building constructed with the Kingspan TEKBuilding System.

Disadvantages – the system may need extractventilation ports in ‘wet’ rooms for it to provideadequate ventilation in a very air tight building. These extract ventilation ports may have to remainpermanently open and thus provide paths forunwanted air leakage. Although desired positive inputventilation could be achieved, there is a risk thatundesired wind-generated over-ventilation couldcompromise the energy performance of the building.Why build tight to keep energy use down then cutholes in the system to allow uncontrolled ventilation?

Advantages - while heat recovery is not an option,some systems claim to preheat input air by gatheringsolar heat from the batten space under roof tiles. This may reduce running costs.

Figure 4 POSITIVE INPUT VENTILATION SYSTEM

HEATING SYSTEMS

Buildings constructed using the Kingspan TEKBuilding System can be cheap to run from theviewpoint of heating bills because they can be so energy efficient.

You can use any conventional heating system butsizing and controls are important. Heating systemscan be ‘down-sized’ considerably and eveneliminated altogether as heating demand can be verylow or negligible. Controls are important so as toavoid overheating - a normal domestic heating regimecould cause a building constructed with the KingspanTEK Building System to overheat.

The Kingspan TEK Building System can also act as a stimulus to think outside the box with regards toheating systems. It is perfectly possible to design abuilding using the System that will normally require noheating system. What heat is lost through the fabric ofthe building or through unintentional bulk air movementcan be more than compensated for by incidental gainsand the introduction of a combined ventilation andheating strategy e.g. the introduction of a small fancoil into a mechanical ventilation with heat recovery(MVHR) unit or the use of small wood burning stove intandem with a standard MVHR system.

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Design

Figure 5 HEATING SYSTEMS IN THE KINGSPAN TEK BUILDING SYSTEM

TECHNICAL SUPPORT

Kingspan Insulation offers a wide range of technicalsupport.

● The Kingspan TEK Building System is onlyerected by a network of registered contractorswho have undergone specialist training.

● The Kingspan TEK Building System incorporatesa comprehensive Design Service. The customersends fully dimensioned drawings including plansand elevations* either via email [email protected] for UK projects and forprojects from the Republic of Ireland and NorthernIreland or by post (see address on rear cover) andthey will be engineered into a Kingspan TEKBuilding System scheme to match your design.The scheme will lay out in detail, the way inwhich the Kingspan TEK Building System panelsare to be joined on site to create your building.We will consult you on all aspects of designthroughout this process, and a full itemised quotationwill be provided along with the final scheme.

● We can also convert your house designs toincorporate room in roof design using theKingspan TEK Building System.

● The Kingspan TEK Building System DesignService ensures that buildings comply with theBuilding Regulations / Standards (Conservation ofFuel and Power / Energy).

● The Kingspan Insulation Technical ServicesDepartment can perform a wide variety of relevantcalculations including: U-values, SAP, NHER,Home Energy Rating (see rear cover).

● Free condensation risk calculations for specificprojects are available upon request from theKingspan Insulation Technical Services Department(see rear cover). These calculations are performedto BS 5250: 1989 (1995) (Code of practice forcontrol of condensation in buildings).

● Every design is certified by independentChartered Engineers which includes full drawingsand structural calculations.

* Only drawings in AutoCAD, DWG and DXF can be sent via email

For zero carbon option,small boiler or electric waterheating can be replacedwith solar hot water

For zero carbon option,grid connectedphotovollaics can beintroduced

Electrical gridconnection

Airtight and highly insulated buildingachieves very low heating demand

Whatever heating system you chose, we advise thatyou should have it engineered to suit the heatingdemands of the Kingspan TEK Building Systemrather than traditional construction methods such astimber frame or masonry.

MVHR system (Heat recovery inoperation during heating season)

No heating system requiredonly small fan coil in MHVRunit or small woodburningstove required

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Energy Efficiency

GENERAL

The low U-values that can be achieved by using theKingspan TEK Building System e.g. 0.2 W/m2.Kwith no additional insulation, mean that not only canthe System meet and exceed current BuildingRegulations / Standards but it also can meet the U-values that are expected to be set in the nextchanges to the Building Regulations / Standards in2005 and beyond. Extremely low U-values e.g.0.1 W/m2.K, can also easily be achieved with theKingspan TEK Building System by applyingadditional insulation. This means low running costsand impressive comfort for the lifetime of the building.

In addition to the Kingspan TEK Building Systempanel’s excellent thermal performance, the closed cellstructure of its rigid urethane insulation core does notallow movement of air within the wall. The insulationwill not sag or physically deteriorate over time as maybe the case with conventional insulating materials.

The proprietary jointing system used with theKingspan TEK Building System creates a very airtight structure (as low as 0.08 air changes per hourat normal air pressures) with little opportunity for airleakage.

U-value calculations for a conventional timber framedhouse always have to take into account, the effects ofcold bridging which, in a new build situation istypically 15%. Cold bridging occurs where a materialwith a significantly worse thermal conductivityinterrupts the normal continuous layer of insulation.

The 15% figure includes:● 38 mm timbers at 600 mm centres for 1 and 2

storey buildings; and

● all timbers such as noggins and intermediate floorjoists that are not insulated behind.

The 15% figure does not include:● timbers that are outside the wall area used for

heat loss calculations; and● timbers (max. depth 50 mm) around window

zones and lintels (max. depth 175 mm).

The SIP technology, upon which the Kingspan TEKBuilding System is based, means the insulation layeris not interrupted by repeating studwork. Thereforethere is less cold bridging and a better thermalperformance. There are however some cold bridgese.g. where timbers are used to support point loadsetc. However, as with U-value calculations for timberframe the same rules apply for timbers that do nothave to be included.

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Energy Efficiency

WALL U-VALUES

● Using the Kingspan TEK Building Systemcomplete walls can easily provide extremely lowU-values as shown in the table below.

● To put this into context, in the UK and Ireland U-values for walls required by Building Regulations/ Standards range from 0.7 – 0.27 W/m2.K.

● Kingspan TEK is clearly bringing future buildingstandards home today.

WALLS Lining to Structural Weatherproofing U-value FigureInsulated Panel layer (W/m2.K)12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.20 6 plasterboard on 25 mm or equivalent), 50 mm cavity, brickwork facingtimber battens†12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.20 7 plasterboard on 25 mm or equivalent), 25 mm (min.) vertical treated timbertimber battens† counter battens, cementitious particle board with

masonry spray render coating 12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.20 8plasterboard on 25 mm or equivalent), 25 mm (min.) vertical treated timbertimber battens† counter battens, timber boarding 12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.20 9 plasterboard on 25 mm or equivalent), 25 mm (min.) vertical treated timbertimber battens† counter battens, tiling battens, tile hanging12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.20 10 plasterboard on 25 mm or equivalent), 25 mm (min.) vertical treated timbertimber battens† counter battens, proprietary brick slip system12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.17 11 plasterboard on 25 mm or equivalent), 20 mm Kooltherm® K5 EWB zero ODP,timber battens† 25 mm (min.) vertical treated timber counter battens,

cementitious particle board with masonry spray render coating 12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.14 11 plasterboard on 25 mm or equivalent), 50 mm Kooltherm® K5 EWB zero ODP,timber battens† 25 mm (min.) vertical treated timber counter battens,

cementitious particle board with masonry spray render coating 12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.12 11plasterboard on 25 mm or equivalent), 70 mm Kooltherm® K5 EWB zero ODP,timber battens† 25 mm (min.) vertical treated timber counter battens,

cementitious particle board with masonry spray render coating

† An alternative to plasterboard on battens is two layers of 12.5 mm plasterboard with the inner layer being vapour check plasterboard*.

*Calculations in accordance with BS 5250: 1989 (1995) (Code of practice for control of condensation in buildings) will determine whether there is arequirement for a vapour control layer with the Kingspan TEK Building System. However it is always good practice to install a vapour control layer asbuildings have a tendency to alter their psychrometric conditions (relative humidity) through change of use. This can be installed in the conventionalmanner, using 500 gauge polythene sheet, or by using vapour check plasterboard.

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Figure 6 Figure 7

Figure 8 Figure 9

Figure 10 Figure 11

Timber batten (creatingservices cavity)

Vapour checkplasterboard

Kingspan TEK™ BuildingSystem wall panel




Treated timbercounter batten

Cementitiousparticleboard

Render

Bottom plate

Damp proofcourse(DPC)

Sole plateSilicone sealantAnchor bolt

Breathermembrane eg.Kingspannilvent™


KingspanKooltherm®

K5 EWBzero ODP

Kingspan TEK™ BuildingSystem wall panel Timber batten (creating

services cavity)


Cementitiousparticleboard

Render






Timber boarding






Tiles/Slates Tiling battens






Proprietorybrick slipsystem



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Figure 12 Figure 13

ROOF U-VALUES

Using the Kingspan TEK Building System completeroofs can easily provide extremely low U-values asshown in the table below.

To put this in context, for roofs in dwellings withinsulation in the slope of the roof (room in roofconstructions) 0.45 – 0.18 W/m2.K are the currentU-values required by the Building Regulations /Standards in the UK and Ireland.

Kingspan TEK Building System can clearly meetthese requirements.

These superb insulating values can reduce heatingcosts and improve the overall efficiency of thebuilding substantially.

ROOFS Lining to Structural Weatherproofing U-valueInsulated Panel layer (W/m2.K) Figure12.5 mm vapour check* Non tenting breather membrane (eg.Kingspan nilvent™ 0.20 12plasterboard on 25 mm or equivalent), 38 mm x 38 mm vertical treated timber timber battens† counter battens, tiling battens and tiles / slates37.5 mm Thermawall Non tenting breather membrane (eg.Kingspan nilvent™ 0.16 13 TW56 zero ODP* on or equivalent), 38 mm x 38 mm vertical treated timber 25 mm timber battens counter battens, tiling battens and tiles / slates82.5 mm Thermawall Non tenting breather membrane (eg.Kingspan nilvent™ 0.12 13 TW56 zero ODP* on or equivalent), 38 mm x 38 mm vertical treated timber 25 mm timber battens counter battens, tiling battens and tiles / slates

† An alternative to plasterboard on battens is two layers of 12.5 mm plasterboard with the inner layer being vapour check plasterboard*.

*Calculations in accordance with BS 5250: 1989 (1995) (Code of practice for control of condensation in buildings) will determine whether there is arequirement for a vapour control layer with the Kingspan TEK Building System. However it is always good practice to install a vapour control layer asbuildings have a tendency to alter their psychrometric conditions (relative humidity) through change of use. This can be installed in the conventionalmanner, using 500 gauge polythene sheet, or by using vapour check plasterboard.

Tiles/slates

Tiles/slate batten

Breather membrane eg.Kingspan nilvent™

38 x 38 mmcounter batten

Kingspan ThermawallTW56 zero ODP

Horizontal lap between runsof breather membranesealed (if required) with75 mm wide doublesided acrylicadhesive tape

Rafter

Tiles/slates


Tiles/slate batten

Breather membrane eg.Kingspan nilvent™

38 x 38 mmcounterbatten



Horizontal lap between runsof breather membranesealed (if required) with75 mm wide doublesided acrylicadhesive tape

Energy Efficiency

Documents

TEK structural insulated panels 4cms.esi.info/Media/documents/Kings_TEK4_ML.pdf · 2016. 6. 21. · Kingspan TEK Building Systemwall panel, a single layer of 12.5 mm vapour check