IKO Spectraplan TPE


Spectraplan TPE (Thermoplastic Polyolefin Elastomer) roofing systems use the very latest in advanced polymer technology. Incorporating a range of membranes and accessories, these next generation TPE systems combine the best performance characteristics of thermoplastics (e.g. PVC) and elastomerics (e.g. EPDM). This ensures optimum results both during installation and in performance.

SIG Design & Technology works in partnership with IKO and has exclusive UK distribution of three IKO- produced membrane systems; Armourplan PVC, Spectraplan TPE and PermaTEC hot melt.

These products can only be installed by an IKO trained and licensed contractor.

Our product range includes the following:

  • Spectraplan SM – TPE membrane for mechanically fixed installation
  • Spectraplan SG – fleece backed membrane for adhered applications
  • Spectraplan D – membrane for complex detailing
  • Spectraplan Walkway – TPE membrane with slip resisting surface for use on walkways

A comprehensive range of accessories is also available to complement the Spectraplan membranes.

Spectraplan offers many benefits including:

  • Latest polymer technology
  • Environmental benefits
  • No need for solvent cleaning or preparation
  • Compatible with bitumen and expanded polystyrene
  • High resistance to ageing and wind uplift
  • Non-capillary construction – does not absorb moisture
  • Resistance to root penetration
  • Excellent welding characteristics
  • Elasticity
  • Complete range of fixings and accessories
High resistance to ageing

These roofing sheets do not degrade under UV exposure and the action of ozone does not cause surface erosion. Standing water does not have any detrimental or leaching effects and this ensures a very long life expectancy.

Reliable and secure seam welding

The Spectraplan TPE polymer has a very broad ‘thermal welding range’, which minimises its operational sensitivity. This is determined by the excellent flow behaviour of the TPE polymer. The use of identical TPE polymers at the top and bottom side of the roofing sheets, combined with the excellent flow behaviour, produces a homogeneous and reliable weld, which is stronger than the roofing sheet itself.

Chemical resistance and compatibility

These roofing sheets offer exceptionally high chemical resistance to many organic and inorganic substances and solvents. They are also compatible with bitumen and they can be directly applied to existing bituminous coverings and polystyrene (EPS/XPS), without a separation layer being required.


Due to the long lasting high degree of elasticity of TPE, Spectraplan roofing sheets have high resistance to fatigue and point loading. Movement within the substructure can also largely be accommodated without the need for special detailing.


The memory effect associated with elastomers occurs with Spectraplan TPE roofing sheets. As a result of this the installations can benefit from a taut appearance, without this being caused by the exertion of force as tension at the perimeter.

Environmental friendly and recyclable

These membranes are free from plasticisers, (H)CFCs, halogens and heavy metals. They can also be recycled into primary end products at the end of their long lifespan.


Spectraplan TPE membranes have been independently certified by the British Board of Agrément (BBA No. 05/4203) to provide a durable roof covering with a service life in excess of 20 years.


More Information

Wondering whether a Spectraplan TPE roofing system is suitable for your project?

For more information contact our technical helpline on 0844 4434778

Book our CPD which compares a range of roofing systems
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