Flexible wood fiber panels FiberTherm Flex

Wood fiber FiberTherm Flex 50

Flexible wood fiber panels with density 50 Kg/m³.
FiberTherm wood fiber Flex 50 are flexible panels with low density and very low thermal conductivity, suitable for compression and ideal for insulating roofs, walls, cavities and intermediate floors in a completely natural way.

Data sheet Flexible wood fiber panels FiberTherm FlexDownload Data sheet
Specification Flexible wood fiber panels FiberTherm FlexDownload Specification
Price list Wood fiber FiberThermDownload Price list

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The Wood fiber FiberTherm Flex 50 panel is a flexible natural insulator, suitable for compression and ideal for insulating roofs, walls and intermediate floors in a completely natural way. FiberTherm Flex has all the advantages of a natural material such as wood and is also breathable and hygroscopic, thus allowing the creation of isolated environments with high living comfort, where there is a natural regulation of internal humidity.

The FiberTherm Flex 50 wood fiber panel contributes considerably to improving the quality of life, both for the thermal comfort it is able to guarantee, and for the sustainability of this material.
The Natureplus brand, an European certification that encourages the protection of the environment and health in the building sector, attests that the product uses an exceptionally high proportion of renewable raw materials, that its production and its installation generate very few substances harmful. In fact the only raw material used is a wood coming from thinning and untreated sawmill cuts. No binder containing formaldehyde nor PMDI is used during its production. The material is also guaranteed by constant checks carried out by external bodies, which attest to its high quality.

With FiberTherm flex 50 it is possible to contribute considerably to improving the quality of life within one's own home walls, because its perfect insulation characteristics guarantee comfort and warmth to the internal environment during the winter. An excellent structural thermal insulation is obtained and the desired insulating protection is provided to the building at the level of walls, floors and roof.
Thanks to its low thermal conductivity and high thermal resistance, FiberTherm flex 50 protects your environments even from summer heat. The important density, around 50 kg/m³ and the high specific heat, 2100 J / kgK (more than double compared to mineral wool), prevent the heat from entering even during the hottest days. In this way you will enjoy a pleasant sleep, even under the roof.

FiberTherm Flex 50 wood fiber insulation board is also excellent as sound insulation.

• ductile insulating panel, suitable for compression;
• dermatologically tested, without any negative effects on the skin;
• easy pose;
• it adapts easily to the shapes of the profiles, thanks to its high compression capacity;
• excellent insulating properties, in summer as in winter;
• breathable, promotes a comfortable and healthy environment;
• recyclable, ecological, respects the environment;
• tested and authorized building material based on current European standards.


The FiberTherm Flex 50 wood fiber insulation panel is suitable for any type of thermal and acoustic insulation that requires the use of a flexible material, such as:

• insulation of hollow parts in partitions, floors and beams;
• roof insulation under the supporting structures;
• insulation that requires a material that adapts to the shapes of the profiles, especially for curved and non-straight surfaces;
• insulation between trusses, or between beams for floors;
• insulation of false ceilings.


Thickness (mm) Dimension (mm) Weight/m²(kg) Panels/Pack Packs/Pallet m²/Pallet Weight/Pallet(kg)
60 1220x5753,0081056,1approx.186
80 1220x575 4,00 61042,1approx.170
100 1220x575 5,00 412 33,7approx.170
120 1220x575 6,00 41028,1approx.175
140 1220x575 7,00 48 22,4approx.160
160 1220x575 8,00 31021,0approx.170
180 1220x575 9,00 38 16,8approx.190
200 1220x575 10,00 21216,8approx.200
220 1220x575 11,00 2 10 14,0approx.170
240 1220x575 12,00 21014,0approx.175

General indications:
• stack horizontally and dry;
• pay particular attention to the edges of the panels;
• remove the pallet packaging only when it is on a flat, stable and dry surface.


Density (kg/m³) 50
Reaction to fire according to the EN standard 13501-1 E
Thermal conductivity coefficient λD W/(m∗K) 0,038
Specific heat c [J/(kg∗K)] 2.100
Resistance to vapor diffusion μ 1÷2
Hydraulic resistance relative to the length [(kPa · s)/m²] ≥5
Thermal resistance¬†¬† RD [(m² · K)/W]0,50(20) / 0,75 (30) / 1,05 (40) /1,30(50) / 1,55(60) / 2,10(80) / 2,60(100) / 3,15 (120) / 3,65 (140) /4,20 (160) / 4,70 (180) / 5,25 (200) /5,75 (220) / 6,30(240)
Manufacturing controlled according to the legislation EN 13171
Panels identificationWF - EN 13171 - T3 - TR1 - AF5
Waste code (EAK) 030105/170201

FiberTherm Flex wood fiber panels are characterized by:
• effective protection against summer heat thanks to the remarkable intrinsic insulating properties;
• opening to the diffusion of water vapor which contributes to the construction of breathable buildings;
• high humidity absorption capacity of the environment, a natural hygrometric regulator system;
• quality guarantee, thanks to continuous checks and tests carried out according to the European standards.