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Kingspan Kooltherm K17 Phenolic Insulated Plasterboard

Kingspan K17 Insulated dry-lining plasterboard for plaster dab / adhesive bonding

High performance Kingspan product, available in most popular thickness’s from the manufacturer, therefore short lead-times apply. This Kooltherm Range includes the following readily available product thicknesses 25mm, 40mm, 45mm, 50mm and 50mm. Manufactured to order are the following thicknesses 20mm, 30mm, 70mm, 80mm, 100mm and 120mm

Product Applications

Kingspan Kooltherm Phenolic Thermal Laminates for Plaster Dab and Adhesive Bonding.

Kingspan K17 high specification phenolic foam boards are suitable for use with all cavity masonry wall constructions and some solid walls, and timber frame walls.

The boards are handled and fixed as with standard dot and dab plaster board methods.

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Click to Buy: Kingspan K17 Phenolic Insulated Plasterboards - Glass Tissue Faced = Inner Side - for Plaster Dab Adhesion

Kingspan K17 Kooltherm Thermal Laminates for Plaster Dab and Adhesive Bonding are high specification phenolic foam boards, suitable for use with all cavity masonry wall constructions and some solid walls, and timber frame walls. The boards are handled and fixed as with standard dot and dab plaster board methods.

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Our Prices are currently being revised please contact us for the latest prices

Common product, generally held by all depots Generic Aluminised Tape, 100mm x 45m = 45lm - ranging from £0.13 to £0.14 per lm

1 plus rolls @ £0.14 per lm = £6.09 (£7.31 inc-VAT) per roll
5 plus rolls @ £0.13 per lm = £6.04 (£7.25 inc-VAT) per roll
10 plus rolls @ £0.13 per lm = £5.99 (£7.19 inc-VAT) per roll
15 plus rolls @ £0.13 per lm = £5.93 (£7.12 inc-VAT) per roll
20 plus rolls @ £0.13 per lm = £5.88 (£7.06 inc-VAT) per roll
25 plus rolls @ £0.13 per lm = £5.82 (£6.98 inc-VAT) per roll

Price and Availability Information

Presently there are no availability restrictions, apart from manufacturing lead-times and minimum quantity order levels on certain product sizes.
Please observe the 'Star Rating' indicators to assess availability.

Excellent = Product Availability Excellent Good = Product Availability Good Fair = Product Availability Fair Poor =  Product Availability Poor Undetermined = Product Availability Undetermined
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations

Product Characteristics

The Front Facings

The front facing of K17 Insulated Plasterboard is a tapered edge gypsum based plasterboard which readily accepts dry–jointing materials, plaster skim or direct decoration.

The Reverse Face

The reverse facing of K17 Insulated Plasterboard is a tissue based facing autohesively bonded to the insulation core during manufacture.

The Core

The core of K17 Insulated Wallboard is a premium performance CFC/HCFC free rigid thermoset phenolic insulant of typical density 35 kg/m3.


K17 Insulated Dry-lining Board is manufactured without the use of CFCs/HCFCs and has zero Ozone Depletion Potential (ODP).

Compressive Strength

Typically exceeds 100 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’)


K17 Insulated Dry–lining Board has a gypsum plasterboard face. It should, therefore, not be used to isolate dampness nor be used in continuously damp or humid conditions.


If correctly applied, K17 Insulated Wall 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 adhesive 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.
The insulation core and facings used in the manufacture of K17 Insulated Plaster Board resist attack by mould and microbial growth and do not provide any food value to vermin.

Fire Performance

The rigid phenolic insulation core of K17 Insulated Dry Lining Board will achieve the results given below, which enable it to be classified by the Building Regulations as being Class 0 and as Low Risk by the Technical Standards in Scotland.

    The fire rating of Kingspan Kooltherm K17 boards when subjected to British Standard fire tests, will vary, depending on the particular application.

    Test - BS 476–6: 1989 (Fire tests on building materials and structures. Method of test for fire propagation for products)
    Result - Fire propagation index of Fire tests on building performance (1) not exceeding 12 and sub Index (i1) not exceeding 6 (for rigid phenolic insulation core)

    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

    Test - BS 5111–1: 1974 (Smoke Obscuration)
    Result - < 5%

Product Advantages

    Premium performance rigid phenolic insulation thermal conductivity as low as 0.021 W/m.K
    Class 0 / Low Risk fire rating
    Negligible smoke obscuration
    Suitable for use in rainscreen cladding systems
    Clear cavity is maintained resists moisture penetration
    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 Specifications

Kingspan K17 Phenolic Thermal Laminate Insulated Plasterboards

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 K17 32.5mm 24 x 1.2m x 2.4m = 69.12m² 20 0.023 0.90 1.12 9.17 633.84
Kingspan K17 37.5mm 21 x 1.2m x 2.4m = 60.48m² 25 0.021 1.25 0.80 9.35 565.53
Kingspan K17 42.5mm 18 x 1.2m x 2.4m = 51.84m² 30 0.021 1.45 0.69 9.52 493.56
Kingspan K17 52.5mm 15 x 1.2m x 2.4m = 43.2m² 40 0.021 1.95 0.52 9.87 426.45
Kingspan K17 57.5mm 14 x 1.2m x 2.4m = 40.32m² 45 0.020 2.30 0.44 10.05 405.30
Kingspan K17 62.5mm 12 x 1.2m x 2.4m = 34.56m² 50 0.020 2.55 0.40 10.22 353.28
Kingspan K17 72.5mm 11 x 1.2m x 2.4m = 31.68m² 60 0.020 3.05 0.33 10.57 334.95
Kingspan K17 82.5mm 9 x 1.2m x 2.4m = 25.92m² 70 0.020 3.55 0.29 10.92 283.05
Kingspan K17 92.5mm 8 x 1.2m x 2.4m = 23.04m² 80 0.020 4.05 0.25 11.27 259.68
Kingspan K17 112.5mm 7 x 1.2m x 2.4m = 20.16m² 100 0.020 5.05 0.20 11.97 241.36
Kingspan K17 132.5mm 6 x 1.2m x 2.4m = 17.28m² 120 0.020 6.05 0.17 12.67 218.94
Thermal conductivity / Lambda value (W/mK) = 0.023 to 0.020 plus 0.190 | Compressive Strength (kPa) = > 100 | Water vapour resistance (MNs/g) = > 100 | Fire Performance = Class 0 | 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 K17 Datasheet | Kingspan Product Selector | Kingspan Design Manual | Kingspan BBA U-Value Compliancy Cert. | K17 CE Performance Declaration

Kingspan Kooltherm® K17 Range - Certification

K17 Wall Framing Board insulation is 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 K17

Fixing the Dry Lining Boards

Depending on the specified fixing method; traditional plaster dab bonding, proprietary adhesive bonding, nailing / screwing to vertical timber framing or battens, screwing to adhesive bonded metal furring systems, nailing / screwing to timber joists or rafters or mechanical fixing directly to masonry substrates, fixing should proceed as follows:–


The ceiling lining should be in position before wall lining commences. Wall mounted fittings such as electrical sockets should be fitted so as to take into account the additional wall thickness.Kooltherm K17 Plaster dab Insulated Plasterboard is suitable for Masonry Block Wall
Heavy surface mounted fittings will require provision for the fixing load to be applied direct to the supporting wall and not to the K17 in isolation. On existing constructions all surfaces should be clean and free of loose or flaking materials. Wallpaper should be stripped and surface mounted fittings removed.

Window / Door Reveals and Soffits

Narrow widths of board should be cut and rebated to allow a plasterboard / plasterboard joint at the angle. Fixing should employ the same method as is used for the plain wall areas.
Care should be taken to ensure that the cavity in cavity wall constructions is not bridged by the board or fixing medium in such a manner that would allow the passage of water through to the inner leaf. Where adhesives are employed, soffit boards and boards at window heads should be temporarily supported.

Traditional Plaster Dab Bonding

This method is for applications to brick, block or concrete masonry cavity walls. The method usually involves setting out a continuous fillet of gypsum adhesive around perimeter wall and ceiling junctions, and around any openings in order to provide a seal.
Vertical dabs of the gypsum adhesive are progressively applied to the background together with a continuous fillet at skirting and ceiling level. The number, size and lay–out of the dabs will depend on the chosen gypsum adhesive manufacturer’s recommendations. Boards are then located against the adhesive dabs and tapped back to align with predetermined guidelines on the floor and ceiling. Nailable plugs are recommended to complement the plaster dab bond.
These are normally applied at a rate of 3 No. per board after the plaster dabs have set (two fixings positioned at the top of each board, one in the board centre).

Proprietary Adhesive Bonding
Kooltherm K17 Insulated Plasterboard is suitable for dot and dab adhesion to a solid Concrete Wall

This method is for application to sound, plane concrete or plastered wall surfaces on cavity walls. Bostik 1440 adhesive is applied to the wall surface in strips to a predetermined pattern that coincides with the edges of the board, and then a further strip is applied horizontally at the midpoint of the board.
Strips of Bostik 1440 pads are then applied to the wet adhesive, which should be allowed to become tacky (this generally takes around half an hour). The protective paper is then removed from the foam strips, and a coating of adhesive is applied to the corresponding position on the Kingspan Kooltherm K17.
After a suitable delay to allow the adhesive to become tacky the board should be accurately offered up to the wall and pressed firmly back onto the pads. Nailable plugs are recommended at a rate of 3 No. per board, to be applied after the adhesive has set (two fixings positioned at the top of each board, one in the board centre).

Mechanical Fixing to Vertical Timber Framing / Battens

This method may be used on timber frame constructions or on any dry masonry walls that will support and retain the battens and associated fixings. K17 should be fixed to timber framing / battens set at maximum 600 mm centres and positioned horizontally at floor and ceiling level. The timbers should run vertically and be wide enough to offer a minimum 20 mm support to all four edges of the board.
Drywall screws or, alternatively, galvanised clout nails, long enough to allow a minimum 25 mm penetration of the timber, should be placed at 150 mm centres and not less than 10 mm from the edges of the board. They should be driven straight with the heads embedded just below the surface of the board. Care should be taken not to overdrive nails / screws. Timbers should be treated where appropriate.

Mechanical Fixing to Metal Furring Systems

K17 Insulated Plasterboard can be fixed by the use of proprietary metal framing systems to brick, block or concrete walls. The metal frame should be fixed to the masonry or concrete wall in accordance with the manufacturer’s instructions to provide a true and level base for the board.
The frame should be set vertically at a maximum of 600 mm centres to coincide with board joints and midpoint of board. Short lengths of metal framing should be fixed horizontally between the vertical pieces at skirting level, at the midpoint of the board and just below the ceiling or soffit level.
Provision for horizontal services behind the board can be made by the use of two pieces of metal framing set no more than 300 mm apart. Kingspan Kooltherm K17 should be screw fixed to each metal framing section with self drilling and tapping, countersunk, surface coated (to avoid corrosion), screws placed at 150 mm centres.
Screws should not be sited less than 10 mm from the edges of the board. The screws should be driven straight until the heads are slightly below the paper surface of the plasterboard facing. Care should be taken not to overdrive screws.

Mechanical Fixing to Timber Joists or Rafters

K17 may be used to line ceilings. Installation is similar to that of standard plasterboard. Boards must always be placed with the long edge running across the joists, rafters or battens and all edges must be supported. Timbers must offer a minimum 20 mm support to all four edges of the board. This will necessitate the use of noggings placed between the joists to coincide with the long edges of the board. Drywall screws or, alternatively, large–headed galvanized / sheradised clout nails should be used to fix the board. These must be long enough to allow a minimum 25 mm penetration of the supporting timber, and be placed not less than 10 mm from the edges of the board and be spaced at 150 mm intervals along all supporting timbers.

Mechanical Fixing Directly to Masonry Substrates

This method is for application to fair finished brick, block and concrete cavity walls where K17 is to be finished with gypsum plaster. The wall should be sound, dry and level (as surface irregularities may impede fixing of the board). The board should be fully restrained using mechanical fixings. The number and type of such fixings should be in accordance with the fixing supplier’s recommendations, and should be evenly distributed over the whole area of the board. Fixings should not overlap board edges.


Tapered edged boards allow the employment of standard dry–lining techniques. A plaster skim finish can also be applied to the boards. The finishing should be carried out in accordance with the specified manufacturer’s instructions, particularly in relation to the need to allow thorough drying of the plaster prior to decoration.

Fire Stops

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


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.

Manufacturer's Contact Details

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:  /
Web sites: Kingspan Home Page / Kingspan U-Value Calculator.

Our Contact Details

Insulation Online Limited

Sales Office only:

39 Earlsbrook Road, Horley, Surrey, RH1 6DR, UK

Telephone: 0333 9000 989