Wood fiber Special dry density 140kg/m³

Wood fiber FiberTherm Special dry density 140kg/m³

Wood fiber panels with density 140 Kg/m³.
FiberTherm special dry 140 is a wood fiber panel for thermal and acoustic insulation on the outside of flat or pitched roofs, resistant to wind and humidity. Ideal for roof insulation in wooden buildings, but also in redevelopment and new traditional buildings.

Wood fiber panel FiberTherm special dry: the new generation of insulating materials for exterior roof renovations. Much thermal energy is lost thanks to the large roof area. As a result, potential savings in restructuring are also lost. But what if the attic is already developed and inhabited? BetonWood offers FiberTherm special dry building solution, a rigid wood-fiber insulating panel that can be placed directly from the outside on the beams.
Ideally, the area must first be isolated between beams, for example with FiberTherm flex, the insulating system in flexible wood fiber panels. Often, only the old construction beams are too small to make modern insulation systems. With wood fiber FiberTherm special dry is possible to provide the additional insulation required above the beams.
The living space under the roof is not compromised.

FiberTherm special dry is an insulating panel in wood fiber for new roofs or in repair, for renovations of buildings of all kinds. The panels are made of natural wood fibers and are produced without dubious additives through a dry process. The link between fibers occurs not for added adhesives, but only thanks to its own lignin.

The insulating wood fiber panel's profile of FiberTherm special dry guarantees wind resistance, suitability and drainage of water, without further joints for roofs with at least 16° inclinations. It reduces the thermal bridges of the building, protects from hail, protects from summer heat and guarantees excellent sound insulation. The thickness of the insulating material decreases. It has a density equal to 140 kg/m³.

The material is also recyclable, it is certified and made exclusively with wood from controlled forests in compliance with the FSC guidelines (Forest Stewardship Declaration).


The insulating wood fiber panel FiberTherm special dry 140 is an excellent thermal and acoustic insulation for new roof and renovations. This type of wood fiber has the following characteristics:

• insulating wood fiber panel resistnat to wind and moisture;
• insulating wood fiber panel water-repellent for roof renovations;
• tested dermatologically; without any negative effect on the skin;
3 advantages: wind protection, weather protection, thermal insulation;
• made by dry method;
• greater structural security in the field of restructuring;
• panel typologies: UPD-A for pitched roof with ≥16° inclination. Also suitable as a temporary cover;
• excellent insulating properties, in summer as in winter and good soundproofing;
• recyclable, ecologic, environment-friendly;
• building material tested and authorized according to current European standards.

• Very good thermal conductivity: FiberTherm special dry provides an excellent insulating value. The value of thermal conductivity λ is equal to 0,040 [W/(m·K)].
So, with FiberTherm Special dry 140 is possible to obtain an excellent thermal insulation applied also on particularly thin roof structures.

• safety protection from atmospheric agents: special tongue&groove profile of wood fiber panels FiberTherm Special dry has a specially developed geometry for easy installation and long life. The roof is well protected from rain and wind.

• Ecologic quality: BetonWood has developed a great experience in the production and use of wood fiber insulation materials. Independent certifications, such as the FSC label, have the function to confirm this quality.

• Lightness, ease of installation: With a density equal to 140 kg/m³ the panels FiberTherm special dry 140 are particularly lightweight and easy to handle: the 120 mm panels weigh only 17 kg and can be installed by one person.


Available sizes

wood fiber panels with tonghe&groove profile
Thickness Size mm Real surface mm kg/m² Pan./pallet m²/pallet kg/pallet
40 mm 1880 x 600 1855 x 575 5,60 56 63,2 approx.420
120 mm 1880 x 600 1855 x 575 16,80 18 20,3 approx.360
140 mm 1880 x 600 1855 x 575 19,60 16 18,0 approx.370
160 mm 1880 x 600 1855 x 575 22,40 14 15,8 approx.370
180 mm 1880 x 600 1855 x 575 25,20 12 13,5 approx.360
200 mm 1880 x 600 1855 x 575 28,00 12 13,5 approx.390


Technical characteristics

Characteristics Values
Density kg/m³ 140
Fire reaction according to EN 13501-1 E
Coefficient of thermal conductivity λD W/(m∗K) 0,040
Specific heat J/(kg∗K) 2.100
Resistance to vapor diffusion μ 3
Valore sd (m) 0,36(120) /0,42(140) /0,48(160)
/ 0,54(180) /0,60(200)
Thermal conductivity RD (m²·K)/W 2,90(120) / 3,40(140) / 3,90(160)
/ 4,35(180)/ 4,85(200)
Bending resistance
to 10% of compression (N/mm²)
0,1
Compression resistance (kPa) ≥100
Tensile resistance
perpendicular to faces (kPa)
≥10
Bending resistance [(kPa·s)m²] ≥100
Controlled manufacture according to the standard EN 13171
Panels identification WF - EN 13171 - T5 - CS(10\Y)100
- TR10 - WS1,0 - MU3
Waste code (EAK) 030105/170201


Solutions with Wood fiber Special dry

Ventilated roof with wood fiber Special dry and cement bonded particle boards on matchboarding
Ventilated roof with wood fiber Special dry and BetonWood on matchboarding

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Ventilated roof with wood fiber Isorel, Special dry and cement bonded particle boards on matchboarding
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Ventilated roof with wood fiber Special dry and cement bonded particle boards on concrete
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Ventilated roof with wood fiber Isorel and Special dry on concrete
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Ventilated roof with wood fiber Isorel, Special dry and cement bonded particle boards on concrete
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Ventilated roof with wood fiber Special dry and cement bonded particle boards on concrete
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Ventilated roof with wood fiber Isorel, Special dry and cement bonded particle boards on concrete
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Ventilated roof with wood fiber Special dry and cement bonded particle boards on terracotta tiles
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Ventilated roof with wood fiber Isorel and Special dry on terracotta tiles
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Ventilated roof system with Aercoppi and high density wood fiber FiberTherm Isorel, Special dry with excellent thermal insulation power on terracotta tiles.

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Ventilated roof with wood fiber Isorel, Special dry and cement bonded particle boards on terracotta tiles
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