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IMPORTANT: CLICK FOR PIR PRODUCT AVAILABILITY INFORMATION

Kingspan TP10 Thermapitch Rigid PIR Insulation Boards

Kingspan's popular polyisocyanurate products are available in most popular thickness’s from the manufacturer, in which case short lead-times apply. The most popular board sizes may be available from stock.

Kingspan TP10 / TW55 and TF70 are readily available in the following product thickness's 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 75mm, 80mm, 90mm, 100mm, 105mm, 120mm and 150mm.
Manufactured to order are the following thickness's 45mm, 55mm, 65mm, 85mm, 110mm, 115mm, 130mm, 135mm and 140mm

Product Functions

Kingspan TP10 or Thermapitch TP10 Range comprises performance rigid PIR boards used for rafter level insulation for tiled or slated pitched warm roof spaces. These boards are faced on both sides with a low emissivity composite foil facing that is highly resistant to the transmission of water vapour.

Please note:
To emphasise the application specific suitability of Thermapitch TP10, ThermaWall TW55, and ThermaFloor TF70, Kingspan have branded the same product with these three different names.

Common applications for this product include ...
Between and Over Rafters, Between and Under Rafters, Between Rafters, and Pitched Roof Sarking

Product Description

The Front Facings

TP10 is faced on both sides with a low emissivity composite foil facing which is highly resistant to the transmission of water vapour. This reflective, low emissivity surface can effectively double the thermal resistance of the cavity in which the board is placed.

The Core

The core of TP10 is manufactured from trademarked Nilflam technology (a high performance CFC/HCFC free polyisocyanurate (PIR) based formulation). TP10 has a typical density of 32 kg/m3.

TP10 is manufactured without the use of CFCs/HCFCs and has zero Ozone Depletion Potential (ODP).

Compressive Strength

Typically exceeds 140 kPa at 10% compression when tested to BS EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Water Vapour Resistance

Modified to include board facings, the boards achieve a resistance far greater than 100 MN.s/g, when tested in accordance with BS 4370–2: 1993 (Methods of test for rigid cellular materials. Methods 7 to 9)
Where additional vapour control is required an appropriate surface treatment should be applied over the completed insulated wall area (see ‘Water Vapour Control’)

Durability

If correctly applied, the TP10 Board has an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Resistance to Solvents, Fungi & Rodents

The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils.
However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesives systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product.

Damaged boards or boards that have been in contact with harsh solvents or acids should not be used.

Fire Performance

TP10, when subjected to British Standard fire tests, achieves the results given below.
Test - BS 476–3: 1958 (External fire membrane adopted exposure roof test)
Result - SAA rating
Test - BS 476–7: 1997 (Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products
Result - Class 1 rating

Product Benefits

    High performance rigid PIR thermoset insulation – thermal conductivity 0.022 W/m.K
    On average its use creates 15% more usable warm roof space
    Insulation of pipes and tanks is unnecessary
    No condensation risk
    Unaffected by air movement
    Resistant to the passage of water vapour
    Easy to handle and install
    Ideal for new build and refurbishment
    Non–deleterious material
    CFC/HCFC free with zero Ozone Depletion Potential (ODP)


Product availability indicators

TP10 - Price and Availability Advisory:

Presently there are no availability restrictions, apart from manufacturing lead-times and minimum quantity order levels on the 45mm, 55mm, 65mm, 85mm, 110mm, 115mm, 130mm, 135mm and 140mm

Excellent = Product Availability Excellent Good = Product Availability Good Fair = Product Availability Fair Poor =  Product Availability Poor Undetermined = Product Availability Undetermined
Availability relies on stock levels at closest depots and upon transport logistics to effect deliveries


Technical Data

Kingspan TP10 Pitched Roof PIR Insulation Boards

Product Code

Board dimensions

Thickness (mm)

λ Value (w/mK)

R-value (m²K/W)

U Value (W/m²K)

Weight (kg/m²)

Unit weight (kg)

Kingspan TP10 20mm 15 x 1.2m x 2.4m = 43.2m² 20 0.022 0.90 1.12 0.98 42.45
Kingspan TP10 25mm 12 x 1.2m x 2.4m = 34.56m² 25 0.022 1.10 0.91 1.14 39.48
Kingspan TP10 30mm 10 x 1.2m x 2.4m = 28.8m² 30 0.022 1.35 0.75 1.30 37.50
Kingspan TP10 40mm 8 x 1.2m x 2.4m = 23.04m² 40 0.022 1.80 0.56 1.62 37.36
Kingspan TP10 45mm 7 x 1.2m x 2.4m = 20.16m² 45 0.022 2.00 0.50 1.78 35.91
Kingspan TP10 50mm 6 x 1.2m x 2.4m = 17.28m² 50 0.022 2.25 0.45 1.91 33.06
Kingspan TP10 55mm 5 x 1.2m x 2.4m = 14.4m² 55 0.022 2.50 0.40 2.10 30.25
Kingspan TP10 60mm 5 x 1.2m x 2.4m = 14.4m² 60 0.022 2.70 0.38 2.26 32.55
Kingspan TP10 65mm 4 x 1.2m x 2.4m = 11.52m² 65 0.022 2.95 0.34 2.42 27.88
Kingspan TP10 70mm 4 x 1.2m x 2.4m = 11.52m² 70 0.022 3.15 0.32 2.58 29.76
Kingspan TP10 75mm 4 x 1.2m x 2.4m = 11.52m² 75 0.022 3.40 0.30 2.74 31.60
Kingspan TP10 80mm 4 x 1.2m x 2.4m = 11.52m² 80 0.022 3.60 0.28 2.90 33.44
Kingspan TP10 85mm 3 x 1.2m x 2.4m = 8.64m² 85 0.022 3.85 0.26 3.06 26.46
Kingspan TP10 90mm 3 x 1.2m x 2.4m = 8.64m² 90 0.022 4.05 0.25 3.22 27.84
Kingspan TP10 100mm 3 x 1.2m x 2.4m = 8.64m² 100 0.022 4.50 0.23 3.54 30.60
Kingspan TP10 110mm 3 x 1.2m x 2.4m = 8.64m² 110 0.022 5.00 0.20 3.86 33.36
Kingspan TP10 120mm 2 x 1.2m x 2.4m = 5.76m² 120 0.022 5.45 0.19 4.18 24.08
Kingspan TP10 125mm 2 x 1.2m x 2.4m = 5.76m² 125 0.022 5.65 0.18 4.34 25.00
Kingspan TP10 130mm 2 x 1.2m x 2.4m = 5.76m² 130 0.022 5.90 0.17 4.40 25.36
Kingspan TP10 140mm 2 x 1.2m x 2.4m = 5.76m² 140 0.022 6.35 0.16 4.82 27.78
Kingspan TP10 150mm 2 x 1.2m x 2.4m = 5.76m² 150 0.022 6.80 0.15 5.14 29.62
Thermal conductivity / Lambda value (W/mK) = 0.022 to 0.022 | Compressive Strength (kPa) = > 140 | Water vapour resistance (MNs/g) = > 100 | Fire Performance = Class 1 | Please Note: R-Value = Thermal Resistance; U-Value = Thermal Transmittance Co-efficient; Compressive Strength = kiloPascals; Vapour resistance = MegaNewton second gram

Product Information and Certification

Links to manufacturer's information. Click to download in a separate browser window.

Kingspan TP10 Datasheet | Kingspan Product Selector | Kingspan Design Manual | Kingspan BBA U-Value Compliancy Cert. | TP10 CE Performance Declaration


Kingspan Kooltherm® TP10 Range - Certification

TP10 Pitched Roof Board insulation is manufactured to the highest standards in accordance with draft BS 4841–5 (Rigid polyurethane (PUR) and polyisocyanurate (PIR) products for building end–use applications. Specification for laminated insulation boards for pitched roofs) Kingspan Thermapitch® TP10 is also manufactured to the highest standards under a management system certified to BS / I.S. EN ISO : 9001 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems Requirements)

CE Marking - Kingspan has provided Decelerations of Performance for its products. CE marking is the visible sign, that the product has met the requirements of the European Norms (ENs) and is therefore compliant with the Construction Products Regulation (CPR).


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Product Installation - Kingspan TP10

Unventilated (Sealed and Unsealed) and Ventilated Constructions

There is generally a choice between either approach, except in the case of refurbishment / loft conversions. In these instances, unless the whole roof is to be stripped, it is impossible to use an unventilated roof, because a breathable sarking membrane cannot be installed.
Kingspan TP10 unventilated – Insulation Between & Under Rafters Fullly Filled Insulation Between Rafters – No Sarking BoardRecent research suggests that the unventilated, sealed roof approach yields a more energy efficient roof as the impacts of ventilation and incidental infiltrating cold air are negated.

Position of Insulation

Dependent on the designed insulation value of the construction and the available rafter depth and headroom, different approaches can be taken. It is recommended to use two layers of insulation to achieve required U–values. The major benefit of two layer systems and the Insulation.

Over Rafters

Rafter approach is that thermal bridging caused by the rafter is prevented and the potential for pattern staining in the position of the rafters is completely avoided. The choice may be influenced by the available headroom and concerns over the depth of barge-boards.
Approaches with a layer of insulation over rafter are likely to yield very large fascia boards and so generally, between and under rafter insulation approaches are probably more desirable.
Please note: Where the choice is for two layers, the layer with the greatest effective R–value should be placed uppermost in order to prevent condensation between the two layers.

Unventilated Roof - Ventilation Considerations

Unventilated roof approaches create a warm pitched roof space, which does not require cross ventilation. Recent research suggests that sealing an unventilated roof yields a more energy efficient roof, as the impacts of ventilation and incidental infiltrating cold air are negated. Therefore, if creating an unventilated roof, it is preferable to fully seal all joints in the breathable sarking membrane with tape. Any water vapour reaching the breathable sarking membrane escapes without condensing. There is then adequate air movement beneath the tiles to dissipate this water vapour to the outside atmosphere.
Tape for sealing joints in the breathable sarking membrane should be specified in accordance with the recommendations of the breather membrane manufacturer.
The requirement for a vapour control layer and / or under–tile ventilation should be assessed to BS 5250: 2002 (Code of practice for control of condensation in buildings).
Vapour check plasterboard or a separate vapour control layer can be specified as preferred, if required.

Ventilated Roof – Ventilation Considerations

In these cases the Building Regulations / Standards require a 50 mm ventilation air gap between the insulation and the sarking felt, so as to avoid condensation.
The requirement for a vapour control layer should be assessed to BS 5250: 2002 (Code of practice for control of condensation in buildings). Vapour check plasterboard or a separate vapour control layer can be specified as preferred, if required.

Breathable Sarking Membrane

BS 5250: 2002 recommends that the vapour resistance of the breathable sarking membrane must not exceed 0.60 MN.s/g e.g. Kingspan Nilvent.

Position of Breathable Sarking Membrane
The taping of breathable sarking membrane joints is considerably easier to achieve if the membrane is installed on a continuous surface.
In these cases, the breathable sarking membrane is installed under the counter–battens, which provide a channel for water drainage, or in situations with a sarking board under a slated roof, directly under the slates (as neither tile battens nor counter–battens are used).
Generally, when a continuous surface is available, it will prove easier to install the breathable sarking membrane in horizontal runs, whilst still enabling easy sealing between runs.
In some cases with a continuous surface (Figures 1a & 3a, and 1b & 3b when counter-battens, tiling battens and tiles replace slates nailed directly into the sarking board) the breathable sarking membrane can be installed over the counter–battens.
This yields a marginally better design U–value but it may be more difficult to seal the breathable sarking membrane joints effectively, as the membrane must be draped over the counter–battens in horizontal runs so as to provide a water drainage channel. The air movement allowed by the unsealed membrane may negate the benefit of putting the membrane above the counter–battens.
In situations where there is no continuous surface, the breathable sarking membrane can be draped over the rafters in horizontal runs to provide a channel for water drainage.
In this situation, sealing of the breathable sarking membrane joints will prove difficult.
In roofs with no continuous surface, it is preferable, though more difficult, to install the breathable sarking membrane in vertical runs with junctions between runs sealed by counter–battens placed over the laps in rafter positions.
The breathable sarking membrane is installed taut as the counter–batten provides a space for water drainage.

Recommended Solutions for New Build / Re–roofingThemapitch TP10 Dwarf Wall and Loft Floor / Ceiling Level Insulation

The ideal solution for new build or re–roofing projects is, therefore, between and under rafter insulation with a continuous surface for the breathable sarking membrane so that it can be installed in horizontal runs under counter–battens with laps sealed.
The next best solution is, therefore, between and under rafter insulation with no continuous surface for the breathable sarking membrane, and the breathable sarking membrane installed in vertical runs with laps sealed under counter–battens.

Mansard Roofs / Walls

TP10 can be used for the construction of insulated tiled or slated mansard roofs / walls. Its application on such contracts is identical to the standard specification, which is given here.

Over Rafter Layer of Insulation

Over rafter insulation without a sarking board, is simply fixed by placing the TP10 boards over the rafters and under 38 x 38 mm treated softwood counter–battens in line with the rafters. Secure the counter–battens to the rafters by fixing through both the counter-battens and the TP10.
Over rafter insulation with slates fixed directly into a sarking board, is simply fixed by placing the TP10 boards over the rafters with the sarking board overlaid. Secure the sarking board and TP10 to the rafters by fixing through both the sarking board and the TP10.
Over rafter insulation with a sarking board and tiles on tiling battens and counter–battens, is simply fixed by placing the TP10 boards over the rafters with the sarking board overlaid, and with 38 x 38 mm softwood treated counter–battens in line with the rafters.
Secure the counter–battens to the rafters by fixing through the counter–batten, the sarking board and the TP10.
TP10 should be tightly butted.
Boards may be laid either across or down the line of the rafters and should preferably be laid break bonded. All board joints running from eaves to ridge must occur over rafters. There is no necessity to tape board joints. A preservative treated stop rail should be secured to the rafters close to the eaves.

Fixings for Over Rafter Insulation

Helifix In–Skew, Target Skewfast, Wallfast, Timfix or similar approved fixings should be applied at centres appropriate to the design of the roof and location of the building.

Between Rafter Layer of Insulation
Between rafter insulation can be installed by three methods.
In cases where the insulation between rafters is to be flush with the top of the rafters but does not fill the full rafter depth , install the insulation by the use of nailable sarking clips. The nailable sarking clips are driven into the upper surface of each rafter at one–metre intervals up the roof slope.
The nailable sarking clips then support lengths of TP10 suitably trimmed to size and placed between the rafters.
In cases where the insulation between rafters is to be flush with the bottom of the rafters but does not fill the full rafter depth, install the insulation with the aid of battens nailed to the side of the rafters. The battens should be in the appropriate position to ensure the insulation is flush with the bottom of the rafters.
In cases where the insulation between rafters fully fills the rafter depth, simply install the correct thickness of insulation in such a manner that it is flush with the bottom of the rafters.
In all cases, ensure that insulation boards are tightly butted and that there is a tight fit between the insulation and the rafters. Fill all gaps with expanding urethane sealant.

Under Rafter Layer of Insulation

Please refer to literature for Kingspan Kooltherm K18 Insulated Dry–lining Board.

Breathable Sarking Membrane

The specified breathable sarking membrane (e.g. Kingspan nilvent) is applied as specified. Application advice should be sought from the appropriate membrane manufacturer.

Sarking Felt

In cases without a sarking board, the sarking felt is draped over the rafters to provide a channel for water drainage 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 is applied over the sarking board and held in place by the slates or counter–battens which are nailed through the felt to the sarking board.

Slating and Tiling

Slating and tiling over Kingspan Thermapitch TP10 is exactly the same as on any other pitched 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 tiling rubble does not lie in contact with the breathable sarking membrane (if used) as this may allow wind driven rain or melted snow to penetrate the breathable sarking membrane.

Surface Treatment

TP10 has a foil faced durable surface and no further treatment is necessary. TP10 is not intended to provide an internal finish and should be underlined with a suitable building board.

Fire Stops

Current Building Regulations / Standards should be considered with regard to the requirements for and provision of fire stops.

Cutting

Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side.
Ensure accurate trimming to achieve close–butting joints and continuity of insulation.

Daily Working Practice

Installed TP10 boards should be protected against inclement weather.



Contact Manufacturer

Kingspan Limited

Kingspan Kooltherm Phenolic Foam, Therma PIR, and Styrozone Polystyrene range of rigid insulation boards

Pembridge, Leominster, Herefordshire, HR6 9LA

Kingspan Technical Advisory Service.

Telephone: 01544 388 601 - Fax: 01544 388 888
Email: info@kingspaninsulation.co.uk  / technical@kingspaninsulation.co.uk
Web sites: Kingspan Home Page / Kingspan U-Value Calculator.

Contact us

Insulation Online Limited

27 Massetts Road, Horley, Surrey, Rh4 7DQ, UK

Telephone: 0333 8000 828

Telephone: 01293 781252

Facsimile: 0333 7000 797

Email: enquiries@insulation-online.com