pitch TP10 zero ODP - Barbour Product Search · Kingspan pitch TP10 zero ODP For more information...

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

On average its use creates 15%more usable warm roof space

Insulation of pipes and tanks isunnecessary

No condensation risk

Unaffected by air movement

Resistant to the passage of watervapour

Easy to handle and install

Ideal for newbuild andrefurbishment

CFC/HCFC-free with zero OzoneDepletion Potential (ODP)

BBABRITISHBOARD OFAGRÉMENT

CERTIFICATE 95/3126

BS EN ISO 9002 : 1994Certificate No. FM 10697

CI/Sfb

Second Issue November 2002

(27.9) Rn7 M2

R A F T E R L E V E L I N S U L A T I O N F O R T I L E DO R S L A T E D P I T C H E D W A R M R O O F S P A C E S

pitch TP10 zero ODP

®

For more information on Kingspan Insulation visit www.barbourproductsearch.info

http://www.barbourproductsearch.info/kingspan-insulation-comp103887.html

2

Kingspan pitch TP10 zero ODP

TYPICAL DESIGN DETAILS

FIGURE 1 UNVENTILATEDINSULATION BETWEEN & UNDER RAFTERS(Recommended for new build or re-roofing)

Figure 1a FULLY FILLED INSULATION BETWEEN RAFTERS - NO SARKING BOARD

Figure 1b PARTIALLY FILLED INSULATION BETWEEN RAFTERS - NO SARKING BOARD

Figure 1c FULLY FILLED INSULATION BETWEEN RAFTERS - 18 mm SARKING BOARD

Figure 1d PARTIALLY FILLED INSULATION BETWEEN RAFTERS - 18 mm SARKING BOARD

Figure 2a NO SARKING BOARD Figure 2b 18 mm SARKING BOARD

Horizontal lap between runs ofbreathable sarking membranesealed (if required) with75 mm wide doublesided acrylicadhesivetape

Rafter


Kingspan Thermapitch TP10 zeroODP between rafters

Kingspan ThermawallTW56 zero ODP under rafters**/***

Tiles/slates

Tiles/slate batten

*Breathable sarkingmembrane eg.Kingspan nilvent™


Rafter

Kingspan Thermapitch TP10zero ODP between rafters

Kingspan ThermawallTW56 zero ODP underrafters**/***

Slates****

18 mmsarking board

*Breathablesarking membraneeg. Kingspan nilvent™

Rafter

Kingspan ThermapitchTP10 zero ODP betweenrafters

Kingspan Thermawall TW56 zero ODP under rafters**/***

Slates****18 mmsarking board


Horizontal lap between runs of breathable sarkingmembrane. NB. The breathable sarkingmembrane could be installed verticallyunder counter battens andpulled taut in which case theair space under thebreathable sarkingmembrane isunventilated

RafterKingspanThermapitchTP10 zero ODPbetween rafters

Kingspan ThermawallTW56 zero ODP underrafters**/***

Kingspan ThermapitchTP10 zero ODPbetween rafters

Kingspan Thermawall TW56zero ODP under rafters

Tiles/slates

Tiles/slate batten

Breathablesarking membraneeg. Kingspan nilvent™

Unventilated airspace

Horizontal lap betweenruns of sarking felt

Rafter Sarking felt

Tiles/slates

Tile/slatebatten

Kingspan ThermapitchTP10 zero ODP between rafters


Rafter

Ventilated air space(50 mm min) aboveinsulation to currentBuilding Regulations/Standards

Sarking felt

Slates****

18 mmsarking boardTimber

batten

38 x 38 mmcounter batten

Air space (25 mm min) aboveinsulation to provide a space to drapethe breathable sarking membrane

Timberbatten

Timberbatten

FIGURE 2 VENTILATEDINSULATION BETWEEN & UNDER RAFTERS(Recommended for loft conversion)

Timber batten

Ventilated air space(50 mm min) aboveinsulation to currentBuilding Regulations/Standards Kingspan Thermawall TW56

zero ODP under rafters


3

FIGURE 3 UNVENTILATEDINSULATION BETWEEN RAFTERS(Recommended for new build or re-roofing)

Figure 3a FULLY FILLED INSULATION BETWEEN RAFTERS - NO SARKING BOARD

Figure 3b PARTIALLY FILLED INSULATION BETWEEN RAFTERS - NO SARKING BOARD

Figure 3c FULLY FILLED INSULATION BETWEEN RAFTERS - 18 mm SARKING BOARD

Figure 3d PARTIALLY FILLED INSULATION BETWEEN RAFTERS - 18 mm SARKING BOARD

FIGURE 4 VENTILATEDINSULATION BETWEEN RAFTERS(Recommended for loft conversion)



Rafter

Kingspan Thermapitch TP10zero ODP between rafters12.5 mm plasterboard**

Tiles/slates

Tiles/slate batten



Tiles/slates

Tiles/slate batten


Rafter


12.5 mm plasterboard**


*Breathablesarking membraneeg. Kingspan nilvent™`


Rafter

KingspanThermapitchTP10 zero ODPbetween rafters

12.5 mm plasterboard**Timber batten


*Breathablesarking membraneeg. Kingspan nilvent™


Rafter

Ventilated air space(50 mm min) aboveinsulation to currentBuilding Regulations/Standards 12.5 mm plasterboard

Sarking felt

Tiles/slates

Tile/slatebatten

Kingspan ThermapitchTP10 zero ODP between rafters12.5 mm plasterboard


Rafter

Ventilated air space(50 mm min) aboveinsulation to currentBuilding Regulations/Standards

Sarking felt

Slates****

18 mmsarking boardTimber

batten

Rafter



Breathable sarkingmembrane eg.Kingspan nilvent™

Air space (25 mm min) aboveinsulation to provide a space to drapethe breathable sarking membrane

Timberbatten

Horizontal lap between runs of breathable sarkingmembrane. NB. The breathable sarkingmembrane could be installed verticallyunder counter battens andpulled taut in which case theair space under thebreathable sarkingmembrane isunventilated

Unventilated airspace

Timber batten



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FIGURE 6 UNVENTILATEDINSULATION OVER RAFTERS(Recommended for new build or re-roofing)


FIGURE 5 UNVENTILATEDINSULATION BETWEEN & OVER RAFTERS(Recommended for new build or re-roofing)


SPECIFICATION CLAUSE

Kingspan Thermapitch TP10 zero ODP should bedescribed in specifications as:-

The rafter level insulation shall be KingspanThermapitch TP10 zero ODP ____mm thickcomprising a CFC/HCFC-free rigid urethaneinsulation core with low emissivity composite foilfacings on both sides manufactured to BS EN ISO9002: 1994 by Kingspan Insulation Limited and shallbe applied in accordance with the instructions issuedby them.

Details also available in NBS PLUS.NBS users should refer to clauseK11 695.

NBS

P

L U

SP

LU

S

* The breathable sarking membrane can be placed over thecounter battens, draped to provide for drainage and overlainwith tile/slate battens. This will yield a marginally better U-valuebut it will be more difficult to seal the breathable sarkingmembrane effectively.

** The requirement for a vapour control layer and/or under tileventilation should be assessed to BS 5250: 1989 (1995).Vapour check plasterboard or a separate vapour control layercan be used as preferred.

*** Kingspan Thermawall TW56 zero ODP contains an integralvapour control layer.

**** If tiles are to be used then this normally necessitates the use ofcounter battens and tiling battens over the breathable sarkingmembrane to allow for water drainage and attachment of thetiles.


Rafter

Kingspan Thermapitch TP10zero ODP between and overrafters

12.5 mmplasterboard**

Tiles/slates

Tiles/slate batten


Nailablesarking clips



Rafter

Kingspan Thermapitch TP10zero ODP over rafters


Tiles/slates

Tiles/slate batten




Rafter

Kingspan ThermapitchTP10 zero ODP between andover rafters

Nailable sarking clipsTimber battens



12.5 mmPlasterboard**


Rafter

Kingspan ThermapitchTP10 zero ODP over rafters

Timber battens Unventilated air space



12.5 mmplasterboard**

Unventilated air space



Kingspan pitch TP10 zero ODPFor more information on Kingspan Insulation visit www.barbourproductsearch.info

5

The requirement for a vapour control layer should beassessed to BS 5250: 1989 (1995) (Code of practicefor control of condensation in buildings). Vapour checkplasterboard or a separate vapour control layer can bespecified, as preferred if required.

Note: Kingspan Thermawall TW56 zero ODP, asused in Figure 2, contains an integral vapour controllayer.

BREATHABLE SARKING MEMBRANEBS 5250: 1989 (1995) (Code of practice for controlof condensation in buildings) recommends that thevapour resistance of the breathable sarking membranee.g. Kingspan nilvent TM must not exceed 0.25MN.s/g.

POSITION OF BREATHABLE SARKING MEMBRANEThe taping of breathable sarking membrane joints isconsiderably easier to achieve if the membrane isinstalled on a continuous surface (Figures 1a, 1c, 1d,3a, 3c, 3d, 5a, 5b, 6a & 6b).

In these cases, the breathable sarking membrane isinstalled under the counter battens, which provide achannel for water drainage, or in situations with asarking board under a slated roof, directly under theslates (as neither tile battens nor counter battens areused).

Generally, when a continuous surface is available, itwill prove easier to install the breathable sarkingmembrane in horizontal runs, whilst still enabling easysealing between runs.

In some cases with a continuous surface (Figure 1a,3a, 5a & 6a, and 1c, 1d, 3c, 3d, 5b & 6b whencounter battens, tiling battens and tiles replace slatesnailed directly into the sarking board) the breathablesarking membrane can be installed over the counterbattens. This yields a marginally better design U-valuebut it may be more difficult to seal the breathablesarking membrane joints effectively, as the membranemust be draped over the counter battens in horizontalruns so as to provide a water drainage channel. Theair movement allowed by the unsealed membranemay negate the benefit of putting the membraneabove the counter battens.

In situations where there is no continuous surface(Figures 1b and 3b), the breathable sarking membranecan be draped over the rafters in horizontal runs toprovide a channel for water drainage. In this situation,sealing of the breathable sarking membrane joints willprove difficult.

In roofs with no continuous surface, it is preferable,though more difficult, to install the breathable sarkingmembrane in vertical runs with junctions between runssealed by counterbattens placed over the laps inrafter positions. The breathable sarking membrane isinstalled taut as the counterbatten provides a spacefor water drainage.

RECOMMENDED SOLUTIONS FOR NEW BUILD/RE-ROOFINGThe ideal solution for new build or re-roofing projectsis, therefore, between and under rafter insulation witha continuous surface for the breathable sarkingmembrane so that it can be installed in horizontal runsunder counterbattens with laps sealed (Figures 1a, 1cand 1d).

DESIGN CONSIDERATIONS

UNVENTILATED (SEALED AND UNSEALED) ANDVENTILATED CONSTRUCTIONSThere is generally a choice between either approach,except in the case of refurbishment / loft conversions.In these instances, unless the whole roof is to bestripped, it is impossible to use an unventilated roof,because a breathable sarking membrane cannot beinstalled.

Recent research suggests that the unventilated, sealedroof approach yields a more energy efficient roof asthe impacts of ventilation and incidental infiltratingcold air are negated.

POSITION OF INSULATIONDependent on the designed insulation value of theconstruction and the available rafter depth and headroom,different approaches can be taken. It may be necessaryto use two layers of insulation to achieve required U-valuese.g. Figures 1, 2 & 5. An additional benefit of two layersystems and the Insulation Over Rafter approach (seeFigure 1, 2, 5 & 6) is that thermal bridging caused by therafter is prevented and the potential for pattern staining inthe position of the rafters is completely avoided. Thechoice maybe influenced by the available headroom andconcerns over the depth of bargeboards.

Approaches with a layer of insulation over rafter arelikely to yield very large fascia boards and sogenerally, between and under rafter insulationapproaches are probably more desirable e.g. (Figures 1 and 2).

Note: However, where the choice is for two layers,the layer with the greatest effective R-value should beplaced uppermost in order to prevent condensationbetween the two layers.

UNVENTILATED ROOF - VENTILATIONCONSIDERATIONSUnventilated roof approaches create a warm pitchedroof space, which does not require cross ventilation.Recent research suggests that sealing an unventilatedroof, yields a more energy efficient roof as theimpacts of ventilation and incidental infiltrating coldair are negated. Therefore, if creating an unventilatedroof, it is preferable to fully seal all joints in thebreathable sarking membrane with tape. Any watervapour reaching the breathable sarking membraneescapes without condensing. There is then adequateair movement beneath the tiles to dissipate this watervapour to the outside atmosphere. Tape for sealingjoints in the breathable sarking membrane should bespecified in accordance with the recommendations ofthe breather membrane manufacturer.

The requirement for a vapour control layer and / orunder-tile ventilation should be assessed to BS 5250:1989 (1995) (Code of practice for control ofcondensation in buildings). Vapour check plasterboardor a separate vapour control layer can be specified,as preferred if required.

Note: Kingspan Thermawall TW56 zero ODP, asused in Figure 1, contains an integral vapour controllayer.

VENTILATED ROOF - VENTILATIONCONSIDERATIONSIn these cases the Building Regulations /Standardsrequire a 50mm ventilation air gap between theinsulation and the sarking felt, so as to avoidcondensation.


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The R-values and l-values quoted in thisdocument for rigid urethane insulation are based

on the procedures for the determination of theaged values of thermal resistance and thermal

conductivity, laid down in the harmonisedEuropean standard BS EN 13165, using socalled 90:90 principles. Comparison with

alternative products may not be appropriateunless the same procedures have been followed.

THERMAL CONDUCTIVITYThe boards achieve a thermal conductivity (l-value) of0.022 W/m.K.

THERMAL RESISTANCESThermal resistance (R-value) varies with thickness andis calculated by dividing the thickness of the board(expressed in metres) by its thermal conductivity.

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

20 0.90925 1.13630 1.36435 1.59140 1.81845 2.04550 2.27355 2.50060 2.72765 2.95570 3.18275 3.40980 3.63690 4.091

100 4.545105 4.773110 5.000120 5.455125 5.682130 5.909140 6.364145 6.591150 6.818160 7.273165 7.500175 7.955200 9.091

The U-value requirements as detailed in theappropriate Building Regulations/Standards can beeasily achieved utilising the appropriate thickness ofKingspan Thermapitch TP10 zero ODP. Thecalculation of U-values for pitched roof insulationpurposes is determined by a number of factors:● will the loft space be habitable or not;● does the ceiling line follow the pitch of the roof or

is it a flat horizontal ceiling;● the pitch of the roof (where a horizontal ceiling is

to be used); and● rafter centres/depth/width where insulation is

between rafters.

The following examples have been calculated usingboth the combined method and the proportional areamethod. The combined method is required forcompliance with Building Regulations / Standardsrevised after the year 2000. These examples arebased on the constructions shown in Figures 1 to 6with 50 mm wide rafters at 600 mm centres and12.5 mm plasterboard.* If your construction is anydifferent, please consult our Technical ServicesDepartment (see rear cover).

Combined Method – U-values were calculated usingthe method which has been adopted to bringNational standards in line with the EuropeanStandard calculation method, BS / IS EN ISO 6946:1997 (Building components and building elements.Thermal resistance and thermal transmittance.Calculation method).

Proportional Area Method – U-values were calculatedusing the method detailed in The Chartered Institute ofBuilding Services Engineers (CIBSE) Guide A3(Thermal Properties of Building Structures).

NB when calculating U-values using the combined method asdetailed in BS / IS EN ISO 6946: 1997, the type of mechanicalfixing used may change the thickness of insulation required. The effectof fixings has been ignored for the purposes of these calculations.Please contact the Kingspan Insulation Technical Services Department(see rear cover) for project calculations.

NB for the purposes of these calculations the standard ofworkmanship has been assumed good and therefore the correctionfactor for air gaps has been ignored.

The figures in the U-value tables (pages 7-9) are for guidance only.A detailed U-value calculation together with a condensation riskanalysis should be completed for each individual project. Please callour Technical Services Department for assistance (see rear cover).

*Unless otherwise stated.

TYPICAL U-VALUES

The next best solution is, therefore, between andunder rafter insulation with no continuous surface forthe breathable sarking membrane, and the breathablesarking membrane installed in vertical runs with lapssealed under counterbattens (Figure 1b).

MANSARD ROOFS/WALLSKingspan Thermapitch TP10 zero ODP can beused for the construction of insulated tiled or slatedmansard roofs / walls. Its application on suchcontracts is identical to the standard specification,which is given here.

FIRE STOPSCurrent Building Regulations / Standards should beconsidered with regard to the requirements for and/orprovision of fire stops.

THERMAL PROPERTIES


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PARTIALLY FILLED INSULATION BETWEEN RAFTERS– 18 mm SARKING BOARD (Fig 1d)

Insulant Thickness U-value (W/m2.K)(mm) Combined Method Proportional

Area Method≤25 † †30 0.34 0.3340 0.31 0.2945 0.29 0.2850 0.28 0.2660 0.25 0.2470 0.23 0.2275 0.22 0.2180 0.20 0.2090 0.20 0.19

100 0.19 0.19105 0.18 0.17110 0.18 0.17120 0.17 0.16125 0.16 0.15

NB calculations based on rafters being underlined with Kingspan ThermawallTW56 zero ODP comprising 12.5 mm plasterboard and 25 mm of insulation ofthermal conductivity 0.022 W/m.K. Thickness shown in the table above is only thebetween rafter component. Calculations assume that there is a minimum 25 mmairspace between the rafters above the insulation layer installed between them.NB the thermal resistance of the between rafter layer must be ≥ that of the underrafter layer so as to avoid condensation.

VENTILATEDINSULATION BETWEEN & UNDER RAFTERS

NO SARKING BOARD (Fig 2a)


Area Method≤25 † †30 0.39 0.3340 0.34 0.2945 0.32 0.2850 0.31 0.2660 0.28 0.2465 0.26 0.2370 0.25 0.2275 0.24 0.2180 0.23 0.2090 0.22 0.19

100 0.20 0.18105 0.19 0.17110 0.19 0.17120 0.18 0.16125 0.17 0.15

NB calculations based on rafters being underlined with Kingspan ThermawallTW56 zero ODP comprising 12.5 mm plasterboard and 25 mm of insulation ofthermal conductivity 0.022 W/m.K. Thickness shown in the table above is onlythe between rafter component. Calculations assume that there is a minimum 50mm ventilated airspace between the rafters above the insulation layer installedbetween them.NB the thermal resistance of the between rafter layer must be ≥ that of the underrafter layer so as to avoid condensation.

UNVENTILATEDINSULATION BETWEEN & UNDER RAFTERSFULLY FILLED INSULATION BETWEEN RAFTERS- NO SARKING BOARD (Fig 1a)


Area Method75 0.24 0.23

100 0.20 0.19125 0.17 0.16150 0.15 0.14

NB calculations based on rafters being underlined with Kingspan ThermawallTW56 zero ODP comprising 12.5 mm plasterboard and 25 mm of insulation ofthermal conductivity 0.022 W/m.K. Thickness shown in the table above is only thebetween rafter component.NB the thermal resistance of the between rafter layer must be ≥ that of the underrafter layer so as to avoid condensation.

PARTIALLY FILLED INSULATION BETWEEN RAFTERS- NO SARKING BOARD (Fig 1b)


Area Method≤25 † †30 0.35 0.3340 0.31 0.3045 0.30 0.2850 0.28 0.2760 0.26 0.2465 0.25 0.2370 0.24 0.2275 0.23 0.2180 0.22 0.2090 0.20 0.19

100 0.19 0.18105 0.18 0.17110 0.18 0.17120 0.17 0.16125 0.16 0.15

NB calculations based on rafters being underlined with Kingspan ThermawallTW56 zero ODP comprising 12.5 mm plasterboard and 25 mm of insulation ofthermal conductivity 0.022 W/m.K. Thickness shown in the table above is only thebetween rafter component. Calculations assume that there is a minimum 25 mmairspace between the rafters above the insulation layer installed between them.NB the thermal resistance of the between rafter layer must be ≥ that of the underrafter layer so as to avoid condensation.

FULLY FILLED INSULATION BETWEEN RAFTERS– 18 mm SARKING BOARD (Fig 1c)



100 0.20 0.19125 0.17 0.16150 0.15 0.14

NB calculations based on rafters being underlined with Kingspan ThermawallTW56 zero ODP comprising 12.5 mm plasterboard and 25 mm of insulation ofthermal conductivity 0.022 W/m.K. Thickness shown in the table above is only thebetween rafter component.NB the thermal resistance of the between rafter layer must be ≥ that of the underrafter layer so as to avoid condensation.

18 mm SARKING BOARD (Fig 2b)


Area Method≤25 † †30 0.39 0.3340 0.34 0.2945 0.32 0.2850 0.31 0.2660 0.28 0.2470 0.25 0.2275 0.24 0.2180 0.23 0.2090 0.22 0.19

100 0.20 0.18105 0.19 0.17110 0.19 0.17120 0.18 0.16125 0.17 0.15

NB calculations based on rafters being underlined with Kingspan ThermawallTW56 zero ODP comprising 12.5 mm plasterboard and 25 mm of insulation ofthermal conductivity 0.022 W/m.K. Thickness shown in the table above is onlythe between rafter component. Calculations assume that there is a minimum 50mm ventilated airspace between the rafters above the insulation layer installedbetween them.NB the thermal resistance of the between rafter layer must be ≥ that of the underrafter layer so as to avoid condensation.

† Although 20 and 25 mm Kingspan Thermapitch TP10 zero ODP is available, its effective R-value is ≤ that of the insulated plasterboard under the rafters. This carries apotential condensation risk.


UNVENTILATEDINSULATION BETWEEN RAFTERSFULLY FILLED INSULATION BETWEEN RAFTERS- NO SARKING BOARD (Fig 3a)



100 0.28 0.27125 0.23 0.23150 0.19 0.19175 0.17 0.17200 0.15 0.15

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PARTIALLY FILLED INSULATION BETWEEN RAFTERS- NO SARKING BOARD (Fig 3b)


Area Method50 0.42 0.4060 0.37 0.3565 0.35 0.3370 0.33 0.3175 0.31 0.3080 0.30 0.2890 0.27 0.26

100 0.25 0.24110 0.23 0.22120 0.22 0.21125 0.21 0.20130 0.20 0.19140 0.19 0.18145 0.18 0.18150 0.18 0.17160 0.17 0.16165 0.16 0.16

NB calculations assume that there is a minimum 25 mm airspace between therafters above the insulation layer installed between them.

FULLY FILLED INSULATION BETWEEN RAFTERS– 18 mm SARKING BOARD (Fig 3c)



100 0.27 0.26125 0.23 0.22150 0.19 0.19175 0.17 0.16200 0.15 0.14

PARTIALLY FILLED INSULATION BETWEEN RAFTERS– 18 mm SARKING BOARD (Fig 3d)


Area Method45 0.44 0.4250 0.41 0.3960 0.36 0.3465 0.34 0.3270 0.32 0.3075 0.31 0.2980 0.29 0.2890 0.27 0.25

100 0.25 0.23110 0.23 0.22120 0.21 0.20125 0.21 0.20130 0.20 0.19140 0.19 0.18145 0.18 0.17150 0.18 0.17160 0.17 0.16165 0.16 0.16

NB calculations assume that there is a minimum 25 mm airspace between therafters above the insulation layer installed between them.

VENTILATEDINSULATION BETWEEN RAFTERSNO SARKING BOARD (Fig 4a)


Area Method45 0.53 0.4350 0.49 0.4060 0.42 0.3565 0.39 0.3370 0.37 0.3175 0.35 0.3080 0.33 0.2890 0.30 0.26

100 0.27 0.24110 0.25 0.22120 0.23 0.21125 0.22 0.20130 0.21 0.19140 0.20 0.18145 0.19 0.18150 0.19 0.17160 0.18 0.16165 0.17 0.16

NB calculations assume that there is a minimum 50 mm ventilated airspace betweenthe rafters above the insulation layer installed between them.



Area Method45 0.53 0.4250 0.49 0.3960 0.42 0.3565 0.39 0.3370 0.37 0.3175 0.35 0.2980 0.33 0.2890 0.30 0.26

100 0.27 0.24110 0.25 0.22120 0.23 0.20125 0.22 0.20130 0.21 0.19140 0.20 0.18145 0.19 0.18150 0.19 0.17160 0.18 0.16165 0.17 0.16

NB calculations assume that there is a minimum 50 mm ventilated airspacebetween the rafters above the insulation layer installed between them.


9

UNVENTILATEDINSULATION BETWEEN & OVER RAFTERS



Area Method20+20 0.43 0.4125+25 0.37 0.3525+30 0.34 0.3330+30 0.32 0.3030+35 0.30 0.2940+40 0.25 0.2450+50 0.21 0.2050+55 0.20 0.1960+60 0.18 0.1770+70 0.16 0.15

NB first thickness refers to thickness between rafters, second thicknessover rafters. The thermal resistance of the over rafter layer must be ≥that of the between rafter layer so as to avoid condensation.



Area Method20+20 0.43 0.4125+25 0.36 0.3525+30 0.34 0.3230+30 0.32 0.3030+35 0.30 0.2840+40 0.25 0.2450+50 0.21 0.2050+55 0.20 0.1960+60 0.18 0.1770+70 0.16 0.15

NB first thickness refers to thickness between rafters, second thicknessover rafters. The thermal resistance of the over rafter layer must be ≥that of the between rafter layer so as to avoid condensation.

UNVENTILATEDINSULATION OVER RAFTERS



Area Method35 0.44 0.4440 0.40 0.4050 0.34 0.3460 0.29 0.2970 0.26 0.2675 0.24 0.2480 0.23 0.2390 0.22 0.21

100 0.20 0.19110 0.18 0.18120 0.17 0.16125 0.16 0.16

NB combined method calculation accounts for the effect of using astainless steel fixing of 6.0 mm diameter, giving a cross sectionalarea of 7.45 mm2.



Area Method35 0.44 0.4340 0.40 0.4050 0.34 0.3460 0.29 0.2970 0.26 0.2675 0.24 0.2480 0.23 0.2390 0.22 0.21

100 0.20 0.19110 0.18 0.18120 0.17 0.16125 0.16 0.16

NB combined method calculation accounts for the effect of using astainless steel fixing of 6.0 mm diameter, giving a cross sectionalarea of 7.45 mm2.


10

OVER RAFTER LAYER OF INSULATIONOver rafter insulation without a sarking board (Figures5a & 6a), is simply fixed by placing the KingspanThermapitch TP10 zero ODP boards over therafters and under 38 x 38 mm treated softwoodcounter-battens in line with the rafters. Secure thecounter-battens to the rafters by fixing through both thecounter-battens and the Kingspan ThermapitchTP10 zero ODP.

Over rafter insulation with slates fixed directly into asarking board (Figures 5b & 6b), is simply fixed byplacing the Kingspan Thermapitch TP10 zero ODPboards over the rafters with the sarking boardoverlaid. Secure the sarking board and KingspanThermapitch TP10 zero ODP to the rafters by fixingthrough both the sarking board and the KingspanThermapitch TP10 zero ODP.

Over rafter insulation with a sarking board and tileson tiling battens and counter battens, is simply fixedby placing the Kingspan Thermapitch TP10 zeroODP boards over the rafters with the sarking boardoverlaid, and with 38 x 38 mm softwood treatedcounter-battens in line with the rafters. Secure thecounter-battens to the rafters by fixing through thecounter-batten, the sarking board and the KingspanThermapitch TP10 zero ODP.

Boards of Kingspan Thermapitch TP10 zero ODPshould be tightly butted, they may be laid eitheracross or down the line of the rafters and shouldpreferably be laid break bonded in order to helpimprove the racking strength of the roof. All boardjoints running from eaves to ridge must occur overrafters. There is no necessity to tape board joints. Apreservative treated stop rail should be secured to therafters close to the eaves (see Figures 9a & 9b).

BETWEEN RAFTER LAYER OF INSULATIONBetween rafter insulation can be installed by threemethods.

In cases where the insulation between rafters is to beflush with the top of the rafters but does not fill the fullrafter depth (Figure 5), install the insulation by the useof nailable sarking clips. The nailable sarking clipsare driven into the upper surface of each rafter at one-metre intervals up the roof slope. The nailable sarkingclips then support lengths of Kingspan ThermapitchTP10 zero ODP suitably trimmed to size and placedbetween the rafters.

In cases where the insulation between rafters is to beflush with the bottom of the rafters but does not fill thefull rafter depth (Figures 1b, 1d, 2a, 2b, 3b, 3d, 4a& 4b), install the insulation with the aid of battensnailed to the side of the rafters. The battens should bein the appropriate position to ensure the insulation isflush with the bottom of the rafters.

SITEWORK

In cases where the insulation between rafters fully fillsthe rafter depth (Figures 1a ,1c, 3a & 3c), simplyinstall the correct thickness of insulation in such amanner that it is flush with the bottom of the rafters.

In all cases, ensure that insulation boards are tightlybutted and that there is a tight fit between theinsulation and the rafters. Fill all gaps with expandingurethane sealant.

UNDER RAFTER LAYER OF INSULATIONPlease refer to literature for Kingspan ThermawallTW56 zero ODP.

BREATHABLE SARKING MEMBRANEThe specified breathable sarking membrane(e.g. Kingspan nilvent TM) is applied as specified.Application advice should be sought from theappropriate membrane manufacturer.

SARKING FELTIn cases without a sarking board, the sarking felt isdraped over the rafters to provide a channel for waterdrainage and held in place by the slate / tile battens,which are nailed through the felt to the rafters.

In cases with a sarking board, the sarking felt isapplied over the sarking board and held in place bythe slates or counter battens which are nailed throughthe felt to the sarking board.

SLATING AND TILINGSlating and tiling over Kingspan Thermapitch TP10zero ODP is exactly the same as on any otherpitched roof except that in some instances the slate /tile battens are fixed to the previously applied counter-battens. It is, however, essential that slate or tilingrubble does not lay in contact with the breathablesarking membrane (if used) as this may allow winddriven rain or melted snow to penetrate thebreathable sarking membrane.

SURFACE TREATMENTThe boards of Kingspan Thermapitch TP10 zeroODP have a foil faced durable surface and no furthertreatment is necessary. Kingspan Thermapitch TP10zero ODP is not intended to provide an internal finishand should be underlined with a suitable buildingboard.

CUTTINGCutting should be carried out using a fine toothedsaw or by scoring with a knife and snapping theboard over a straight edge and cutting the facing onthe other side. Ensure accurate trimming to achieveclose butting joints and continuity of insulation.


11

UNVENTILATEDINSULATION BETWEEN & UNDER RAFTERS OR JUST BETWEEN RAFTERS(Recommended for new build or re-roofing)

Figure 7a OVERHANGING EAVES DETAIL - SECTION PERPENDICULAR TO RIDGE

Figure 7b SECTION PARALLEL TO RIDGE

Flexible insulation materialtightly packed to blockcold bridge and retard airinfiltration.

Cavity closer

Breathable sarking membraneeg. Kingspan nilvent™ drapedover rafters in horizontal runs

Breathable sarkingmembrane lappedover eaves strip

Tiles/slates

Eaves strip


Kingspan Thermawall TW56 zeroODP under rafters (can be replacedwith 12.5 mm plasterboard)

Tiles/slate batten

Rafter

Seal gap between floorand sloping ceiling

Flexible insulation material tightly packed toblock cold bridge and retard air infiltration.


Breathable membrane fullycovering the undercloakTiles/slates



Air space 25 mm (min) to provide space todrape the breathable sarking membrane

Tiles/slate batten

Mortar infill

Rafter

Timber batten

Flying rafter

Fascia board

Cavity closer


12

VENTILATEDINSULATION BETWEEN & UNDER RAFTERS OR JUST BETWEEN RAFTERS(Recommended for loft conversion)


Figure 8b SECTION PARALLEL TO RIDGE


Sarking felt draped over raftersin horizontal runs

Sarking felt fully covering theundercloak

Tiles/slates


Kingspan Thermawall TW56zero ODP under rafters (can bereplaced with 12.5 mm plasterboard)

Ventilated air space 50 mm (min) to currentBuilding Regulations / Standards

Tiles/slate batten

Mortar infill

Rafter

Timber batten

Flying rafter

Fascia board

Cavity closer


Cavity closer

Sarking felt draped over raftersin horizontal runs

Sarking felt is laidinto the gutter

Tiles/slates



Tiles/slate batten

Proprietary eaves ventilator

Rafter


Joist

Ventilation port

Air flow path mustnot be blocked


13

UNVENTILATEDINSULATION BETWEEN & OVER RAFTERS OR JUST OVER RAFTERS(Recommended for new build or re-roofing)


Figure 9b RIDGE DETAIL - SECTION PERPENDICULAR TO RIDGE

Breathable sarking membraneeg. Kingspan nilvent™ lapped150 mm (min) over the ridge fromeach side


Cavity closer

38 x 38 mm counter batten

Tiles/slates

Kingspan Thermapitch TP10zero ODP between (if required)and over rafters

Tiles/slate batten

Breathable sarking membraneeg. Kingspan nilvent™

draped over rafters inhorizontal runs

Rafter

12.5 mm plasterboard


Breathable sarkingmembrane lapped overeaves strip

Eaves strip


14

DAILY WORKING PRACTICEInstalled Kingspan Thermapitch TP10 zero ODPboards should be protected against inclementweather.

FIXINGS FOR OVER RAFTER INSULATIONHelifix In-Skew, Target Skewfast, WallfastTimfix or similar approved fixings should be appliedat centres appropriate to the design of the roof andlocation of the building.Refer to:Helifix Limited +44 (0) 20 8735 5222;Target Fixings Limited +44 (0) 1344 777 189; orWallfast Limited +44 (0) 23 9265 3330.

AVAILABILITYKingspan Thermapitch TP10 zero ODP is availablethrough specialist insulation distributors and selectedbuilders and roofing merchants throughout the UK,Ireland and Europe.

PACKAGINGAccording to quantity, the boards are supplied inpacks or on pallets, labelled and shrinkwrapped inpolythene.

STORAGEThe packaging of Kingspan Thermapitch TP10zero ODP should not be considered adequate forlong term outside protection. Ideally boards should bestored inside a building. If however, outside storagecannot be avoided the boards should be stackedclear of the ground and covered with a polythenesheet or weatherproof tarpaulin. Boards that havebeen allowed to get wet should not be used.

HEALTH AND SAFETYKingspan Insulation products are chemically inert andsafe to use. A leaflet on this topic which satisfies therequirements set out in the Control of SubstancesHazardous to Health Regulations 1988 (COSHH) isavailable from our Technical Services Department (seerear cover).

Please note that the reflective surface on this product is designed toenhance its thermal performance. As such, it will reflect light as wellas heat, including ultraviolet light. Therefore, if this board is beinginstalled during very bright or sunny weather, it is advisable to wearUV protective sunglasses or goggles, and if the skin is exposed for asignificant period of time, to protect the bare skin with a UV blocksun cream.

Warning – do not stand on or otherwise support your weight on thisboard unless it is fully supported by a load bearing surface.

Figure 9c SECTION PARALLEL TO RIDGE



Tiles/slates

Tiles/slates

Kingspan Thermapitch TP10zero ODP between (if required)and over rafters

12.5 mm plasterboard

Unventilatedairspace

Undercloak

Mortar infill

38 x 38 mm counter batten

Timber batten

Rafter

Flying rafterBreathable sarking membraneturned up by 50 mm (min)Fascia boardCavity closer


THE FACINGSKingspan Thermapitch TP10 zero ODP is faced onboth sides with a low emissivity composite foil facingwhich is highly resistant to the transmission of watervapour. This reflective, low emissivity surfaceeffectively doubles the thermal resistance of the cavityin which the board is placed.

THE COREThe core of Kingspan Thermapitch TP10 zero ODPis a high performance CFC/HCFC-free rigid urethaneinsulant of typical density 32kg/m3.

CFC/HCFC-FREEKingspan Thermapitch TP10 zero ODPis manufactured without the use of CFCs/HCFCs and has zero Ozone DepletionPotential (ODP).

PRODUCT DATA

STANDARDS AND APPROVALSKingspan Thermapitch TP10 zero ODP ismanufactured to the highest standards under a qualitycontrol system approved to BS EN ISO 9002: 1994(Quality systems. Model for quality assurance inproduction, installation and servicing). Its use iscovered by BBA Certificate 95/3126.

STANDARD DIMENSIONSKingspan Thermapitch TP10 zero ODP is availablein the following standard sizes and thicknesses:

Nominal Dimension AvailabilityLength (m) 2.4Width (m) 1.2Insulant Thickness* (mm) 20, 25, 30, 35, 40, 45, 50,

55, 60, 65, 70, 75, 80, 90,100, 105, 110, 120, 125,130, 140, 145, 150, 160165, 170, 175, 200

* Other thicknesses are available subject to quantity.

INSULATION COMPRESSIVE STRENGTHTypically exceeds 140 kPa at 10% compression whentested to BS 4370: Part 1: 1988 (1996) (Methods oftest for rigid cellular materials).

WATER VAPOUR RESISTANCEModified to include board facings, the boardsachieve a resistance far greater than 100 MN.s/gwhen tested in accordance with BS 4370: Part 2:1993.

DURABILITYIf correctly applied, Kingspan Thermapitch TP10zero ODP has an indefinite life. Its durability dependson the supporting structure and the conditions of itsuse.

RESISTANCE TO SOLVENTS, FUNGI & RODENTSThe insulation core is resistant to dilute acids, alkalis,mineral oil and petrol. It is not resistant to somesolvent-based adhesive systems, particularly thosecontaining methyl ethyl ketone. Adhesives containingsuch solvents should not be used in association withKingspan Thermapitch TP10 zero ODP. Boardswhich have been in contact with harsh solvents,petrol, mineral oil or acids, or boards that have beendamaged in any way should not be used.

The insulation core and facings used in themanufacture Kingspan Thermapitch TP10 zeroODP resist attack by mould and microbial growth anddo not provide any food value to vermin.

FIRE PERFORMANCEKingspan Thermapitch TP10 zero ODP, whensubjected to British Standard fire tests, achieves theresults given below. Further details of the fireperformance of Kingspan Insulation products may beobtained from our Technical Services Department (seerear cover).

Test ResultBS 476: Part 3: 1975 SAA rating(External fire exposure roof test)BS 476: Part 7: 1997 Class 1 rating(Surface Spread of Flame Test)

15

BS EN ISO 9002 : 1994Certificate No. FM 10697

BBABRITISHBOARD OFAGRÉMENT

CERTIFICATE 95/3126

PRODUCT DESCRIPTION

®


I N S U L A T I O N

Kingspan InsulationPembridge, Leominster, Herefordshire HR6 9LA, UK

Castleblayney, County Monaghan, Ireland

® Kingspan, KoolDuct, Kooltherm, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plcTM Styrozone, Nilvent and TEK Haus are Trademarks of the Kingspan Group plc

www.insulation.kingspan.com

CUSTOMER SERVICE

For quotations, order placement and details of despatchesplease contact our Building Fabric Insulation CustomerServices Department on the numbers below:

UK – Telephone: +44 (0) 870 850 8555– Fax: +44 (0) 870 850 8666– email: [email protected]

Ireland – Telephone: +353 (0) 42 97 95000– Fax: +353 (0) 42 97 46129– email: [email protected]

TECHNICAL ADVICE

Kingspan Insulation Ltd support all of their products with acomprehensive Technical Advisory Service for specifiers,stockists and contractors.

This includes a free computer-aided service designed to givefast, accurate technical advice. Simply phone our

with your project specification and we canrun calculations to provide U-values, condensation/dewpoint risk, required insulation thicknesses etc… Thereafter wecan run any number of permutations to help you achieveyour desired targets.

We can also give general application advice and advice ondesign detailing and fixing etc... Site surveys are alsoundertaken as appropriate.

Please contact our Building Fabric Insulation TechnicalServices Department on the numbers below:

LITERATURE AND SAMPLES

Kingspan Insulation produces a comprehensive range oftechnical literature for specifiers, contractors, stockists andend users. The literature contains clear ‘user friendly’ adviceon typical design; design considerations; thermal properties;sitework and product data.

Available as a complete Design Manual, on CD-ROM or asindividual product brochures, Kingspan Insulation technicalliterature is an essential specification tool. For copies pleasecontact our Marketing Department on the numbers below:



GENERAL ENQUIRIES

For all other enquiries contact Kingspan Insulation on thenumbers below:



Kingspan Insulation reserve the right to amend product specificationswithout prior notice. The information, technical details and fixinginstructions etc. included in this literature are given in good faith andapply to uses described. Recommendations for use should be verifiedas to the suitability and compliance with actual requirements,specifications and any applicable laws and regulations. For otherapplications or conditions of use, Kingspan Insulation offers a freeTechnical Advisory Service (see left) whose advice should be soughtfor uses of Kingspan Insulation products that are not specificallydescribed herein. Please check that your copy of the literature iscurrent by contacting our Marketing Department (see above).

UK: – Telephone: +44 (0) 870 850 8555– Fax: +44 (0) 1544 387 278– email: [email protected]

Ireland: – Telephone: +353 (0) 42 97 95032– Fax: +353 (0) 42 97 46129– email: [email protected]


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