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Product Information

Kingspan K5 EWB, from the Kooltherm Range ...

Kingspan K5 EWB external wall board insulation for use behind traditional and lightweight polymer modified renders

Kingspan Kooltherm® K5 EWB can be mechanically fixed to masonry or timber frame walls behind either traditional or lightweight polymer modified render systems. Once these boards installed, Building Regulations / Standards requirements for these applications can be exceeded.

Benefits

Premium performance rigid phenolic insulation - thermal conductivity 0.021-0.024 W/mK.

Negligible smoke obscuration.

Class O / low risk fire rating. Suitable for use behind traditional and lightweight polymer modified renders.

Suitable for use behind timber or tile rainscreens.

Transforms and upgrades the appearance of existing buildings. 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).

Applications

Kingspan Kooltherm®K5 EWB can be mechanically fixed to masonry or timber frame walls behind either traditional or lightweight polymer modified render systems. Once installed, Kingspan Kooltherm®K5 EWB can exceed Building Regulations / Standards requirements for these applications.

Kingspan K5 EWB Board Sizes and Values

Available in in the standard size of 600mm wide by 1200mm long, and in the following thicknesses ...

Product	R Value (mK/W)	Thermal Conductivity (W/mK)	U Value (W/m²K)	Compressive strength (kPa)	Water vapour resistance (MNs/g)	Reaction to fire
K5 20mm	0.80	0.024	1.25	≥ 150	> 15	Class 1
K5 25mm	1.05	0.023	0.95	≥ 150	> 15	Class 1
K5 30mm	1.30	0.023	0.77	≥ 150	> 15	Class 1
K5 35mm	1.50	0.023	0.67	≥ 150	> 15	Class 1
K5 40mm	1.70	0.023	0.59	≥ 150	> 15	Class 1
K5 45mm	2.10	0.021	0.48	≥ 150	> 15	Class 1
K5 50mm	2.35	0.021	0.43	≥ 150	> 15	Class 1
K5 55mm	2.60	0.021	0.38	≥ 150	> 15	Class 1
K5 60mm	2.85	0.021	0.35	≥ 150	> 15	Class 1
K5 65mm	3.05	0.021	0.33	≥ 150	> 15	Class 1
K5 70mm	3.30	0.021	0.30	≥ 150	> 15	Class 1
K5 75mm	3.55	0.021	0.28	≥ 150	> 15	Class 1
K5 80mm	3.80	0.021	0.26	≥ 150	> 15	Class 1

R-Value = Thermal Resistance; Thermal Conductivity = Lambda Value; U-Value = Thermal Transmittance Co-efficient; Compressive strength = kiloPascals; Vapour resistance = MegaNewton seconds per gram.

Technical Specifications

Kingspan Kooltherm®K5 EWB comprises a CFC/HCFC–free rigid phenolic insulation core with a tissue based facing on both sides manufactured to the highest standards under quality control systems approved to BS EN ISO 9001: 2000 by Kingspan Insulation Limited and shall be applied in accordance with the instructions issued by them.

The Facings

Kingspan Kooltherm® K5 EWB is faced on both sides with a tissue based facing autohesively bonded to the insulation core during manufacture.

The Core

The core of Kingspan Kooltherm® K5 EWB is a premium performance CFC/HCFC–free rigid phenolic insulant of typical density 40 kg/m3.

CFC/HCFC–free

Kingspan Kooltherm® K5 EWB is manufactured without the use of CFCs/HCFCs and has zero Ozone Depletion Potential (ODP).

Compressive Strength

The compressive strength of Kingspan Kooltherm® K5 EWB typically exceeds 150 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 greater than 15 MNs/g, when tested in accordance with BS 4370–2: 1993 (Methods of test for rigid cellular materials. Methods 7 to 9).

Durability

If correctly applied, Kingspan Kooltherm® K5 EWB 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® K5 EWB 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® K5 EWB 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® K5 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 - 1989 Index of 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%

Installing insulated render systems

As insulated render systems are proprietary and utilise different mechanisms for attaching insulation to the wall structure, sitework guidance should be sought from the system manufacturer.
However, in the absence of any other guidance Kingspan Kooltherm® K5 EWB insulation boards are mechanically fixed to the exterior of masonry external walls using anchor bolts, expansion fixings, proprietary fixings or bedded in render.
In the case of timber frame walls the Kingspan Kooltherm® K5 EWB insulation boards are temporarily pinned in place with all joints lightly butted. A breathable membrane e.g. Kingspan nilvent® is applied over the insulation boards and temporarily stapled or pinned in place. Preservative treated softwood battens are fixed vertically at centres to coincide with the timber frame wall studs. The expanded metal / cementitious board to carry the render is then fixed to the vertical battens.
Sill extenders and flashings are used around openings, although the use of rigid phenolic insulation minimises the overall thickness of the external render system.

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.

Fixings for Attachment of Vertical Counter Battens

Approved fixings should be applied at centres appropriate to the design of the wall and location of the building, in order to fix vertical battens through to the wall studs of a timber frame or masonry wall.

Downloads - select from drop-down menu below

Select from drop-down menu Kingspan Quick Guide Product Data Sheet - K5 EWB Product Data Sheet - K5EWB Product Data Sheet - K7 Product Data Sheet - K8 Product Data Sheet - K10 Product Data Sheet - K11 Product Data Sheet - K12 Product Data Sheet - K15 Product Data Sheet - K17 Product Data Sheet - K18 Product Data Sheet - TF73 Product Data Sheet -TP10 Product Data Sheet - TR21 Product Data Sheet - TR22 Product Certification - TP10 Product Certification - K5 EWB Product Certification - K7 Product Certification - K8 Product Certification - K12 Product Certification - K15 Product Certification - TF73 Product Certification - TR21

Manufacturer's Contact Details

Kingspan Insulation Limited
Pembridge, Leominster, Herefordshire, HR6 9LA

Kingspan Technical Advisory Service. Tel: 0870 850 8333
Fax: 01544 387 278 - techline.uk@insulation.kingspan.com

This page was last updated: Wednesday, February 1, 2012

Kingspan K5 from as little as £5.85m² - £4.21 per board

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