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Kingspan TEK® Building System

High performance structural insulated panels

The Kingspan TEK Building system is the premium product range within their portfolio. For Passivhaus performance this is the system Kingspan recommend. It is also possible to use TEK as a roof solution in conjunction with their ULTIMA wall system for room in roof applications.

About Kingspan TEK

The system comprises an injected high performance rigid urethane insulation core, autohesively bonded to 15mm structural oriented strand board (OSB) on either side. The result is a very strong structural element with thermal performance built in.

Durability and performance are independently assured as the Kingspan TEK Building System is recognised by all the major building warranty providers such as NHBC, Building Life Plans and Premier Guarantee as well as holding BBA Certification.

The insulated spline jointing detail ensures minimal thermal bridging through the insulation layer and results in a very airtight building shell.

System Benefits

The system is consistent with their value creation ethos by promoting a number of key benefits including:

  • Exceptional thermal performance with wall and roof U-Values of 0.21 – 0.10 W/m2K with typical Y-Values ranging from 0.05 – 0.01
  • Highly airtight construction can achieve air permeability of less than 1 m3/hr.m2 at 50 Pa.
  • Panels are PEFC and FSC (C109304) Chain of Custody certified
  • Zero ODP and low Global Warming Potential
  • Fast, cost effective and predictable
  • High dimensional accuracy and zero shrinkage
  • Accommodation of all types of external facades
  • Minimal site waste

Fire Performance

The Kingspan TEK building system benefits from large scale structural fire testing* and therefore the designer can specify the internal finish with confidence about Building Regulation compliance.
30 minutes REI performance is easily achieved with only a single layer of 12.5mm standard plasterboard fixed in accordance with the manufacturer’s instructions. 60 minutes fire resistance is achieved with a single layer of 12.5mm fire resistant board.

*Fire test undertaken by Exova UK Ltd in accordance with BS EN 1365-1: 1999 – Read technical note here

Thermal Performance

The proprietary jointing system used with the Kingspan TEK Building System creates an incredibly airtight structure which can achieve Passivhaus levels of 0.6 ach @ 50 Pa if so desired. Standard construction usually results in performance of circa 1.0 m3/hr.m2 @ 50 Pa.

At this level of airtightness Kingspan recommend the inclusion of MEV or MVHR air handling as window vents are insufficient for Approved Document Part F.

Based on brick cladding a wall based on our 142mm TEK panel achieves 0.19 W/m2.K or 0.16 W/m2.K with a 172mm panel without additional Kooltherm lining. For other U values they add an internal Kooltherm lining behind the service batten. For Passivhaus they recommend the use of Kooltherm externally to wrap the structure. Kingspan will assist your Architect in the development of an appropriate wall specification including condensation risk analysis free of charge as part of our Customer technical support.


British Board of Agrément: BBA Approval Inspection Testing Certificate.

High Performance Homes

Have a design you want to build?

Kingspan Timber Solutions can help you achieve a High Performance Home…

Kingspan Timber Solutions support self-builders who have used an external specialist to create the designs for their new home and obtain planning permission.

With Kingspan, you’re not just buying a timber frame, you are buying access to experience and expertise from a leading self-build service provider. Their timber frame and SIPs construction systems deliver unrivalled levels of thermal efficiency and extremely high levels of airtightness.

Why Choose Kingspan?

Kingspan have over 50 years’ experience in the self-build sector. Larger organisations appreciate their expertise too and they have worked with Barratt Homes, Premier Inn hotels, Center Parcs luxury lodges and many other UK brand names.

Maximise the space and market value of your home and shrink your energy bills by choosing Kingspan Kooltherm based systems. The Kingspan TEK and Ultima systems can satisfy aspirations from building regulations to Passivhaus standard.

Kingspan PLC are financially sound, enabling you to buy with the confidence that your money is safe. As a group of friendly professionals, they will work with you and your architect to help you build a high quality sustainable home.

Our offering

Kingspan provide so much more than a timber frame, they provide a high performance building envelope for your new home.

  • High performance structural building systems – Ultima or Kingspan TEK Building System
  • Windows and joinery – supplied and fitted
  • Insulation pack – Market leading Kingspan Kooltherm
  • Structural engineering and architectural support service
  • Thermal performance strategy – SAP assessment and Energy Performance Certificate
  • Construction work supervised by a Kingspan Contracts Manager

Gain more living space…

Did you know that by using a Kingspan Build System you could gain extra floor space within your existing design? Why not take Kingspan’s Space Test and see how much you could gain? Simply submit your drawings and they will return your space-gain result and a valuation of how much more your finished house could be worth as a result of the extra space

Attend one of Kingspan’s free self-build open days – find out more here