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High performance expanded polystyrene (EPS) insulation suitable for full fill cavity walls. Insulation boards have a fluted face and a tongue and grooved edge profile which is fully interlocking; when in place the insulation fills the cavity and does not require special clips or wall ties.

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Standard product features


Jabfill Premium is available as EPS 70 as defined in BS EN 13163 - Reaction to Fire Class E, containing a flame-retardant additive.


  • 476 x 1219 mm (including tongues and bottom edge detail).
  • 450 x 1200 mm nominal.

Thermal conductivity:

Jabfill Premium: 0.032 W/mK.


Expanded polystyrene has been awarded an A+ rating by the BRE's Green Guide to Specification.

NBS Specification

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This product is associated with the following NBS Create clause:
45-45-65/380 Expanded polystyrene (EPS) board

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Jablite Ltd


+44 (0)870 600 3666

Product reference

Jabfill Premium


[100 mm]
[125 mm]
[150 mm]

Manufacturer details

Infinity House,
Anderson Way,
Kent, DA17 6BG
Tel +44 (0)870 600 3666
Fax +44 (0)870 600 2555
NBS Plus
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