Mainly used in pitched roofs and ventilated facades.


A flexible, natural and ecological thermal insulation board based on wood fibre. The high thermal performance and heat accumulating capacity together with the convenient size, makes the board an ideal insulation solution.

Features and benefits:

  • Adaptable to complex shapes.
  • Easy processing.
  • Outstanding insulating against thermal losses in winter and heat transmittance in the summer.
  • CE marked.


Mainly used in pitched roofs and ventilated facades.

General information


Wood fibre

Uniclass 2015

Pr_25_57_06_97 Wood fibre batt insulationPrimary


P10/10 Loft insulation

P10/125 Insulation laid between ceiling ties/ joists

P10/140 Insulation fitted between rafters

P10/15 Insulation fitted between rafters

P10/165 Insulation to eaves

P10/170 Insulation to loft access hatches

P10/185 Soffit insulation

P10/20 Insulation to loft access hatches

P10/212 Insulation fixed across inner face of stud walling

P10/217 Insulation slabs fixed to backing wall

P10/220 Sound insulation within timber framed separating wall

P10/240 Insulation fitted between floor joists

P10/250 Insulation supported between floor joists

P10/40 Insulation fitted between studs

P10/42 Mineral wool insulation slabs fixed to backing wall

P10/45 Insulation laid between floor joists

P10/50 Insulation supported between joists

Specification data - Wood fibre batt insulation

Product Reference



40 mm

1.05 m²K/W thermal resistance.

50 mm

1.3 m²K/W thermal resistance.

60 mm

1.55 m²K/W thermal resistance.

80 mm

2.1 m²K/W thermal resistance.

100 mm

2.6 m²K/W thermal resistance.

120 mm

3.15 m²K/W thermal resistance.

140 mm

3.65 m²K/W thermal resistance.

160 mm

4.2 m²K/W thermal resistance.

180 mm

4.7 m²K/W thermal resistance.

200 mm

5.25 m²K/W thermal resistance.

220 mm

5.75 m²K/W thermal resistance.

240 mm

6.3 m²K/W thermal resistance.

Standard product features


Wood fibre.

Board size:

1220 x 575 mm.



Technical characteristics:

  • Density: 50 kg/m³.
  • Thermal conductivity (λd, to BS EN 13171): 0.038 W/mK.
  • Specific heat capacity: 2100 J/kgK.
  • Water vapour diffusion resistance coefficient: 3 μ.
  • Reaction to fire (to BS EN 13501–1): E.
  • Compressive strength (at 10% deformation): 50 kPa.
  • Tensile strength (perpendicular to faces): 2.5 kPa.
  • Waste code according to The European Waste Catalogue (EWC): 030105; 170201; 170604.

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