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Benefits:

Premium performance rigid phenolic insulation – thermal conductivity as low as 0.021 W/m.K
Class 0 / Low Risk fire rating
Negligible smoke obscuration
Insulation, dry–lining and vapour control in one board
Little encroachment on room space
Energy saving – allows quick response heating
Resistant to the passage of water vapour
Easy to handle and install
Ideal for new build or refurbishment
Non–deleterious material
CFC/HCFC–free with zero Ozone Depletion Potential (ODP)

Product Description

The Front Facings

The front facing of Kingspan Kooltherm® K18 Insulated Plaster Board 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 Kingspan Kooltherm® K18 Insulated wallboard is a tissue based facing autohesively bonded to the insulation core during manufacture.

The Core

The core of Kingspan Kooltherm® K18 Insulated dry-lining board is a premium performance CFC/HCFC–free rigid thermoset phenolic insulant of typical density 35 kg/m3.

CFC/HCFC–free

Kingspan Kooltherm® K18 Insulated High Performance Plaster Board is manufactured without the use of CFCs/HCFCs and has zero Ozone Depletion Potential (ODP).

Standard Dimensions 1200mm x 2400mm

Kingspan Kooltherm® K18 is available in the standard size of 1200mm wide by 2400mm long, with an integrated plasterbaord thickness of 12.5mm and is readily available from us in the following most popular thicknesses ... 32.5mm, 52.5mm, 62.5mm and 72.5mm.

We can also source the following sizes for larger orders ... 37.5mm, 42.5mm, 47.5mm, 57.5mm, 67.5mm, 77.5mm, and 82.5mm. However, short lead times may apply.

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’)

Limitations

Kingspan Kooltherm® K18 Insulated Plasterboard has a gypsum plasterboard face. It should, therefore, not be used to isolate dampness nor be used in continuously damp or humid conditions.

Durability

If correctly applied, Kingspan Kooltherm® K18 Insulated Dry-Lining 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 Kingspan Kooltherm® K18 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 Kingspan Kooltherm® K18 Insulated Drylining 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® 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%

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:–

Preparation

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.

Heavy surface mounted fittings will require provision for the fixing load to be applied direct to the supporting wall and not to the Kingspan Kooltherm® K18 Insulated Wallboard 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.

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. Kingspan Kooltherm® K18 Insulated Wallboard 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

Kingspan Kooltherm® K18 Insulated Wallboard 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® K18 Insulated Wallboard 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

Kingspan Kooltherm® K18 Insulated Wallboard 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 Kingspan Kooltherm® K18 Insulated Wallboard 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.

Finishing

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.

Installation

Due to rainscreen cladding systems are proprietary and utilise different mechanisms for attaching cladding panels to the wall structure, sitework guidance should be sought from system manufacturers.

However, in the absence of any other guidance Kingspan Kooltherm® K15 Rainscreen Board can be fully restrained against the structural wall in a brick bond pattern with suitable insulation fasteners. A minimum number of nine fasteners should be placed within the individual board area and be sited > 50 mm but < 150 mm from the edges and corners of the board. Refer to:

EJOT UK Ltd: 01977 687 040
Hilti Ltd: 0800 083 0858

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.

Manufacturer's details

Kingspan Insulation Ltd., Pembridge, Leominster, Herefordshire, HR6 9LA

Web site: Kingspan Home Page

Kingspan Technical Advisory Service

While just-insulation provides the very best products at the very best prices ... for the very best advise we recommend you contact Kingspan directly.

• General Enquiries - Telephone: 0870 850 8555 - Fax: 0870 850 8666
  Email: info.uk@insulation.kingspan.com

• Technical Advice - Telephone: 0870 850 8333 - Fax: 01544 387 278
  Email: techline.uk@insulation.kingspan.com

• Tapered Roofing Enquiries - Telephone: 0870 761 7770 - Fax: 01544 387 289
  Email: tapered.uk@insulation.kingspan.com

• Literature and Samples - Telephone: 0870 733 8333 - Fax: 01544 387 299
  Email: literature.uk@insulation.kingspan.com