Kingspan Timber Frame Building

KTS | Structural Insulated Panels (SIPs)

Structural Insulated Panels (SIPs) Build Systems

Structural insulated panels are pre-insulated panels consisting of two layers of oriented strand board (OSB) sandwiching a layer of rigid insulation. Our OSB is made of sustainably sourced timber. The SIPs offered by Kingspan Timber Solutions have a rigid, high-performance core of phenolic urethane with excellent insulative properties.
SIPs can be up to 7.5m long so can provide a vast, continuous layer of insulation. The resultant reduced number of junctions provides less opportunity for thermal bridging. A SIPs wall enjoys 96% insulation because of this reduction in obstructions, meaning the airtightness levels of SIPs are excellent and they virtually eliminate thermal bridging.
To learn more about the SIPs offered by Kingspan Timber Solutions, explore Kingspan TEK, our premium product offering.

Kingspan TEK

Ultima - Brick, Block, Timber-1

About Kingspan TEK Building System

The Kingspan TEK Building system is a Structural Insulated Panel (SIP) solution and the premium product range within our portfolio. For Passivhaus performance this is the system we recommend. It is also possible to use TEK as a roof solution in conjunction with our ULTIMA wall system for room-in-roof applications.


Kingspan TEK Benefits

  • Exceptional thermal performance with wall and roof U-Values of 0.18 – 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
Unsure if Kingspan TEK is right for you? Call 01767 676400

Kingspan TEK Information

Kingspan Kooltherm
Thermal Bridging
Fire Performance
Build System Comparison
Kingspan TEK comprises two sheets of OSB sandwiching a high-performance, rigid urethane insulation core. Our unique insulated jointing system creates an airtight structure with the capacity to reach Passivhaus standards of performance (less than 0.6 ach @ 50 Pa). For most buildings, a performance of 3.0 m³/m²/hr @ 50 Pa can be easily attained.
The thermal efficiency of Kingspan TEK is only increased with the addition of a layer of Kingspan Kooltherm insulation, a market-leading phenolic insulation. This can be added as an internal lining behind the service batten and even as an external wrap around the structure for very low-energy buildings.
The unique jointing system means the system is not interrupted by repeated studwork, minimising heat loss through thermal bridging, improving the building’s overall energy efficiency. Measurements of 0.03-0.04 are achievable.
The TEK build system benefits from intensive structural fire testing and comfortably surpasses the requirements of Building Regulations. For most detached residential properties, the level of protection required can be achieved with just a single layer of 12.5mm plasterboard. An hour of fire resistance, if required, can be achieved with a single layer of 12.5mm fire-resistant board.


Kingspan Logic

Kingspan ULTIMA

Kingspan TEK

U-Value (W/m2K) 0.21 0.13 - 0.19 0.10 - 0.18
Thermal Bridging 0.05 0.03 - 0.04 0.03 - 0.04
Air Tightness Range (m3/ 3-5 1 to 3 0.05 to 1.5
SAP Fabric Efficiency 17% 24% - 28% 27% - 28%
Psi Values Good Excellent Excellent
Complete wall* 288mm 313-338mm 332-442mm
Panel thickness 123mm 148 - 173mm 167 - 277 mm
Cost Hierarchy £ ££ £££

About Kingspan TEK Building System

The SIP 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. You can visit our Elsworth show home to experience a SIP build for yourself.
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Kingspan Timber Solution Product Brochure

Self building is one of the most exciting events in a lifetime, but it requires lots of decisions. What's within the walls is just as important as how they look on the outside.

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Kingspan Timber Solutions Ltd

Eltisley Road

Great Gransden


SG19 3AR

01767 676400