Kingspan Kooltherm K5
High performance rigid Phenolic external wall insulation board
Suitable for use behind traditional and lightweight polymer modified renders.
Unaffected by air infiltration. Resistant to the passage of water vapour.
Easy to handle and install; ideal for new build and refurbishment projects.
Faced on both sides with a glass tissue based facing, autohesively bonded to the insulation core during manufacture.
Zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).
Thicknesses and Availability:
Available in most popular thicknesses from the manufacturer; short lead-times apply as we may need to get the products in from Kingspan before delivering to site.
This Kooltherm Range includes the following readily available product thicknesses: 20mm, 50mm, 60mm and 70mm.
The following thicknesses are manufactured to order and may have minimum order requirements: 30mm, 40mm, 55mm, 80mm, 90mm, 100mm and 120mm.
General information about Kingspan Kooltherm K5
External wall insulating board for render systems
Kingspans high performance phenolic foam board, Kooltherm K5, is suitable for use in external wall applications with render systems.
Kingspan Kooltherm K5 External Wall Board is a high performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)
Faced on both sides with a glass tissue based facing, autohesively bonded to the insulation core during manufacture
|Thermal Conductivity||0.023 W/m·K (insulant thickness > 25 mm)
0.021 W/m·K (insulant thickness 25 – 44 mm)
0.020 W/m·K (insulant thickness ≥ 45 mm)
|Compressive Strength||120 kPa at 10% compression||BS EN 826: 2013|
|Nominal Density||39 kg/m³|
|Vapour Resistance||> 300 MNs/gm||BS EN 12086: 1997 / I.S. EN 12086: 1998|
Buy Kingspan Kooltherm K5
Limited stock of the most popular boards sizes may be held at some of our larger depots.
Where products need to be brought in from Kingspan, please allow approx. 1 week for delivery on stocked items (highlighted in green below in the properties section) and up to 3 weeks on made to order thicknesses. While Kingspan keep the majority of the popular thicknesses in stock, less popular thicknesses may carry a minimum order level.
Kingspan reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.
Please observe the 'Star Rating' indicators to assess availability.
Generally 1 or 2 days for delivery
Generally 1 to 5 days for delivery
Generally 5 to 10 days for delivery
Generally 5 to 15 days for delivery
Please call to check availability and approximate lead times
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations
Product Performance and Guides
Product Performance, Manufacturer Certification, Downloads, and Installation Guides
While we have provided Thermal Resistance values for all thicknesses on the Kingspan K5 datasheet, some thicknesses may not be readily available.
Items highlighted in green are generally held in stock by Kingspan.
|Kingspan K5 20mm||20mm||0.85 m²K/W||0.94 kg/m²|
|Kingspan K5 30mm||30mm||1.40 m²K/W||1.34 kg/m²|
|Kingspan K5 40mm||40mm||1.90 m²K/W||1.74 kg/m²|
|Kingspan K5 50mm||50mm||2.50 m²K/W||2.14 kg/m²|
|Kingspan K5 55mm||55mm||2.75 m²K/W||2.34 kg/m²|
|Kingspan K5 60mm||60mm||3.00 m²K/W||2.54 kg/m²|
|Kingspan K5 70mm||70mm||3.50 m²K/W||2.94 kg/m²|
|Kingspan K5 80mm||80mm||4.00 m²K/W||3.34 kg/m²|
|Kingspan K5 90mm||90mm||4.50 m²K/W||3.74 kg/m²|
|Kingspan K5 100mm||100mm||5.00 m²K/W||4.14 kg/m²|
|Kingspan K5 120mm||120mm||6.00 m²K/W||3.32 kg/m²|
Standards & Approval
Kingspan Kooltherm K5 External Wall Board is manufactured to the highest standards under a management system certified to BS/I.S. EN ISO 9001:2015 (Quality managementsystems. Requirements), BS / I.S. EN ISO 14001 : 2015 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements with guidance for use).
National BIM Library
Insulated Render Systems
* 150 mm applies to the UK. 200 mm applies to the Republic of Ireland if a row of insulating blockwork (thermal conductivity < 0.20 W/m. K) is used, otherwise 600 mm applies.