**Minimum order value of £300 applies, excluding taxes**
Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core.
As part of our Kooltherm 100 range, it provides a top tier of performance for insulation materials with a thermal conductivity of just 0.019 W/mK across all thicknesses.
The product is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining.
You might also consider Celotex PL4000 range which is a cheaper product with similar performance spec.
Used when fixing to solid wall constructions that are susceptible to rain water penetration. Kooltherm K118 combines insulation, dry–lining and vapour control in one board. This product is a mechanical fix product and as such is most easily erected using battens
Kingspan K118 Board Sizes and Values
Available in in the standard size of 450mm wide by 1200mm long, and in the following thicknesses
The front facing of Kingspan Kooltherm® K118 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® K118 Insulated wallboard is a tissue based facing autohesively bonded to the insulation core during manufacture.
The core of Kingspan Kooltherm® K118 Insulated dry-lining board is a premium performance CFC/HCFC–free rigid thermoset phenolic insulant of typical density 35 kg/m3.
Kingspan Kooltherm® K118 Insulated High Performance Plaster Board is manufactured without the use of CFCs/HCFCs.
Standard Dimensions 1200mm x 2400mm
Kingspan Kooltherm® K118 is available in the standard size of 1200mm wide by 2400mm long, with an integrated plasterboard 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.
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 MNs/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’)
Kingspan Kooltherm® K118 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.
If correctly applied, Kingspan Kooltherm® K118 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.The insulation core and facings used in the manufacture of Kingspan Kooltherm® K118 Insulated Plaster Board resist attack by mould and microbial growth and do not provide any food value to vermin.
The rigid phenolic insulation core of Kingspan Kooltherm® K118 Insulated Drylining Board will achieve a fire rating of Euroclass B-s1,d0.
Kingspan K118 High Performance Drylining Board, for Mechanical Fixing.
Internal dry lining boards suitable for use in timber frame constructions or on any dry masonry walls that will support and retain the battens/furrings and associated fixings.
Premium performance rigid phenolic insulation – thermal conductivity as low as 0.019 W/mK
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
CFC/HCFC–free with zero Ozone Depletion Potential (ODP)
Used when fixing to solid wall constructions that are susceptible to rain water penetration. Kooltherm K118 combines insulation, dry–lining and vapour control in one board
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.
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® K118 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® K118 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® K118 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® K118 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® K118 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® K118 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.
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.
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.