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Pavatex Isolair Multi

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Soprema UK Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • EPD


    Certificate type

A natural and ecological vapor-permeable, windproof and water-repellent thermal insulation / sarking board based on wood fiber made according to a dry process

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Suitable for sub-roofs and ventilated facades.


A natural and ecological vapour-permeable, windproof and water-repellent thermal insulation board based on wood fibre made according to a dry process. The boards can be exposed to weather for up to three months and are waterproof according to BS EN 14964. In the case of open facade cladding, the installation of a UV-resistant membrane, such as Pavatex FBA, is required.

Features and benefits:

  • Can be used as a temporary roofing for up to three months.
  • Vapour permeable, moisture regulating and wind and rain resistant.
  • CE marked.
  • Proven fire resistance and sound protection.

General information













Pr_25_57_06_97 Wood fibre batt insulationPrimary
Pr_25_71_97_89 Timber sarking boards


K20/25 Timber board sarking

K20/220 Timber board sarking

K11/695 Rigid board insulation fixed as roof sarking

K11/55 Rigid board insulation fixed as roof sarking

Product range

Pavatex Insulation

Specification data - Wood fibre batt insulation


30 mm.

2500 x 770 mm, 0.65 m²K/W thermal resistance.

35 mm.

2500 x 770 mm, 0.75 m²K/W thermal resistance.

40 mm.

2500 x 770 mm, 0.9 m²K/W thermal resistance.

52 mm.

2500 x 770 mm, 1.15 m²K/W thermal resistance.

60 mm.

2500 x 770 mm, 1.35 m²K/W thermal resistance.

80 mm.

1800 x 580 mm, 1.8 m²K/W thermal resistance.

100 mm.

1800 x 580 mm, 2.4 m²K/W thermal resistance.

120 mm.

1800 x 580 mm, 2.9 m²K/W thermal resistance.

140 mm.

1800 x 580 mm, 3.4 m²K/W thermal resistance.

160 mm.

1800 x 580 mm, 3.9 m²K/W thermal resistance.

180 mm.

1800 x 580 mm, 4.35 m²K/W thermal resistance.

200 mm.

1800 x 580 mm, 4.85 m²K/W thermal resistance.


145 kg/m³.

100–200 mm.

200 kg/m³.

30–80 mm.


Tongued and grooved.

Thermal conductivity (maximum)

0.041 W/mK³.

100–200 mm.

0.044 W/mK³

30–80 mm.

Product Reference


Other technical characteristics:

  • Water vapour diffusion resistance coefficient: 3 μ.
  • Waste code according to The European Waste Catalogue (EWC): 030105; 170201; 170604.


2100 J/kg·K.

Reaction to fire (to EN 13501-1)



At 10% deformation.

100 kPa.

100–200 mm.

250 kPa.

30–80 mm.


10 kPa.

100–200 mm.

30 kPa.

30–80 mm.

Sustainability data

Contains Red List materials


Country of material origin


Country of product manufacture



PAVATEX wood fibre panels can easily be reused or used further for the same purpose in case of rebuilding or the termination of the use phase of a building in case of selective dismantling as long as they are untreated and not damaged.
Insofar as there was no contamination with third-party products, PAVATEX insulation materials can be easily utilised again.
To conclude cascade use, PAVATEX wood fibre panels can be thermally recycled as renewable energy providers with the heating value of 16.22 MJ/kg (if u=20%) in old wood combustion plants or refuse/garbage incineration plants (MVA/KVA) to produce process energy and electricity. European waste code: 03 0105.


Third party certifications

BBA Agrément Certificate

ISOLAIR AND PAVATHERM-COMBI SARKING BOARDS - Wood fibre material of different densities for use as insulating sarking boards on pitched roofs of dwellings and other buildings with similar temperature and humidity conditions.

BBA Agrément Certificate

Isolair And Pavatherm-Combi Sheathing Boards - Wood-fibre insulation boards for use as external thermal insulating sheathing boards on new and existing timber- or steel-frame walls or masonry walls, in domestic and non-domestic buildings.


PAVATEX Dry process wood fibre insulation EPD


Isoflair Multi

Isoflair Multi

Pavatex Isolair wood fibre insulation

Pavatex Isolair wood fibre insulation

Pavatex EPD

Pavatex EPD

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