NBS Source
Pavatex Pavaflex


Used in pitched roofs and ventilated facades. Placed between rafters, girders and beams of floors, walls and roofs


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.

General information


Wood fibre




1220 x 575 mm


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 betweenor to the face ofstuds

P10/42 Mineral wool insulation slabs fixed to backing wall

P10/45 Insulation laid between floor joists

P10/50 Insulation supported between joists

Product range

Pavatex Insulation

Specification data - Wood fibre batt insulation Enhanced data


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.


50 kg/m³.



Thermal conductivity (maximum)

0.038 W/mK.

Fire performance

To BS EN 13501–1, Class E.


2100 J/kgK.

Water vapour diffusion resistance

3 μ.

Compressive Strength (at 10% deformation)

50 kPa.


2.5 kPa.

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