Kingspan Kooltherm K103 Floorboard


Insulation for beam and block ground floors, suspended timber ground floors and solid concrete ground based floors.


Premium performance rigid thermoset phenolic insulation board for floors manufactured with a blowing agent that has zero ozone depletion potential (ODP) and low global warming potential (GWP).

Manufactured in accordance with ISO 9001: 2015 (Quality Management Systems. Requirements), ISO 14001: 2015 (Environmental Management Systems. Requirements), ISO 45001: 2018 (Occupational Health and Safety Management Systems) and ISO 50001: 2011 (Energy Management Systems. Requirements with guidance for use).

General information


Phenolic resin




2400 x 1200 mm

Uniclass 2015

Pr_25_71_63_59 Phenolic foam boardsPrimary


E20/200 Proprietary underslab insulation

E20/30 Underslab insulation

M10/290 Floating construction

M10/40 Floating construction

M13/260 Floating construction

M13/40 Floating construction

Specification data - Phenolic foam boards Enhanced data

Third party product certification

British Board of Agrément (BBA) Certification.

BBA Certificate No 16/5299.

Fire performance

To BS EN 13501-1, Euroclass RtF C-s2,d0.

Thermal conductivity (maximum)

0.018 W/m∙K.

Cross section

Uniform thickness.


25 mm.

30 mm.

35 mm.

40 mm.

45 mm.

50 mm.

60 mm.

70 mm.

75 mm.

80 mm.

90 mm.

100 mm.

110 mm.

125 mm.

130 mm.

140 mm.

150 mm.

Face size (length x width)

2400 x 1200 mm.

Compressive strength (minimum) at 10% compression

120 kPa.




Glass tissue based facing.

Product Reference

Kingspan Kooltherm K103 Floorboard

Global warming potential

Less than 5.

Ozone depletion potential



Rigid thermoset fibre-free phenolic insulant.

Manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Third party certifications

  • BBA Approval Inspection Testing Certificate No. 16/5299.

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