Wood Fibreboard Product Applications - Ecobuild

Wood Fibreboard 

Product Applications 

N AT U R A L LY M A D E F RO M WO O D

8 

For over 75 years, GUTEX, a Black 

Forest family-owned and operated 

company, has produced insulating 

fibreboards from wood at its plant 

in Waldshut-Tiengen, Germany. 

Today, GUTEX is a leader in innovative, 

environment-friendly manufacturing 

and is the only manufacturer capable of 

producing single-ply, wood fibreboard 

insulation in thicknesses up to 240 mm 

– with all the advantages that come 

with German quality! 

GUTEX insulating wood fibreboards 

are the ideal choice for both home 

improvement and new buildings, 

fulfilling all structural and environmental 

requirements. Some of their most 

distinct qualities are: 

- Low thermal conductivity, which 

guarantees excellent protection in 

winter against cold 

- Highest possible volumetric heat 

capacity for the best protection 

against heat in summer 

- Superb water vapour permeable 

design, which regulates humidity and 

produces pleasant interior living conditions 

2 

- Unsurpassed absorption of impact 

and structural noise 

- Easy, problem-free disposal and recycling 

- Biological safety and environmental 

compatibility: GUTEX insulation 

boards are manufactured from raw 

material obtained from local Black 

Forest forests where only sustained 

forestry practices are employed. 

All GUTEX products undergo stringent 

quality control tests by GUTEX and are 

subject to approval by an independent, 

authorised test and certification agency 

(FMPA, Stuttgart). 

GUTEX’s quality and environmental 

protection management system, certified 

according to DIN EN ISO 9001, 

ISO 14001 and EMAS II (EU Eco Audit 

Ordinance), guarantees the environmental 

compatibility and consistent 

high quality of GUTEX products. 

1 

4

9 

2 3 

5 6 

7 

10 

Photographs 

Gutex Archive: No. 2, 8, 10 

Wolf-Haus: No. 5, 9 

Huf-Haus: No. 6 

Weberhaus: No. 3, 7 

Ligno Trend: No. 4 

NATURALLY MADE FROM WOOD 

3

4 

GUTEX Multiplex-top 

Rain-tight sub plate with homogeneous 

single-ply construction. 

Also suitable for interior applications. 

Available thicknesses: 18, 22, 28 and 

35 mm 

Width x Length: 75 x 250 cm 

GUTEX Ultratherm 

Rain-tight, durable, insulating sub 

plate board, with homogeneous 

single-ply construction. 

Available thicknesses: 50 - 160 mm 


GUTEX Multitherm 

is a moisture resistant insulation 

woodfibre board with single-ply 

homogeneous construction, is an 

ideal sarking board for exterior walls 

under facade facing. 



GUTEX Thermosafe-homogen 

Universal insulating board with 

homogeneous construction 

and excellent properties for 

protection against summer heat and 

cold in winter. 


Width x Length: 62.5 x 120 cm 

GUTEX Thermosafe 

The original universal insulating 

board with multi-ply construction 

performs excellently in both hot or 

cold insulation applications. 



GUTEX Thermoflex 

Flexible, resilient wood fibreboard 

for insulation between rafters and 

framework. 



GUTEX Thermoflat 

Compression proof insulating board 

for flat roofs. 



Properly appli 

GUTEX pro 

beyond you

ed and installed, 

ducts perform 

r expectations 

GUTEX Thermoinstal 

Compression resistant insulation 

board with single-ply homogenous 

construction. Ideal for the thermal 

insulation of installation cavities, 

electrical power and plumbing lines. 

Available thickness: 50 mm 


GUTEX Thermoroom 

Insulation board with single-ply 

homogenous construction. Ideal for 

the retrofit insulating of interior walls 

in older buildings. 



GUTEX Thermosafe-wd 

Highly resistant to compressive 

forces with single-ply construction. 

Designed to provide thermal 

insulation for all walls and floors. 



GUTEX Thermosafe-nf 

Comes with joint strips. Especially 

suitable for wood flooring, providing 

the ideal substructure for screwfastening. 

Available thickness: 41 mm (40 mm 

after installation) 


GUTEX Thermofloor 

Extremely versatile impact insulation 

board for all floor applications, 

includingwet and dry screed. 

Available thicknesses: 21 mm (20 mm 

after installation), 31 mm (30 mm 

after installation) 


GUTEX Happy Step 

Designed for diverse interior applications. 

Available thicknesses: 4 and 6 mm 


GUTEX Thermowall/-gf 

The ideal plaster baseboard for 

GUTEX’s environmentally friendly 

external thermal insulation 

composite system. 


Width x Length: 

59 x 125 cm, 60 x 130 cm, 

60 x 83 cm, 125 x 260/280 cm 


5

Above Rafter Insulation 

GUTEX Multiplex-top, GUTEX Ultratherm, 

GUTEX Thermosafe-homogen, GUTEX Thermosafe 

When most people think 

of insulation, they think of 

insulation against the cold. 

However, if the area of a 

building involved is the roof, 

insulation against heat in summer 

is also extremely important. 

To avoid unpleasant heat 

in areas directly under roofs, 

insulation materials with higher 

volumetric heat storage 

capacity and lower thermal 

conductivity are required. 

GUTEX insulation boards are 

specifically engineered to provide 

the optimum combination 

of these two properties. 

6 

1 

� 

Fastening with 

special screws 

Besides the above-mentioned 

attributes, GUTEX insulation 

boards provide superior 

soundproofing, vapour perme-ability 

and moisture regulation. 

Moreover, the boards 

install in thicknesses up to 

200 mm in a single work step, 

saving time and money! 

2 

3 

1-3 A vapour retarding membrane 

is laid over the exposed 

sheathing. The membrane is 

then covered with GUTEX 

Thermosafe-homogen, which 

is subsequently covered with 

GUTEX Multiplex-top, a rain 

tight deck board. 

GUTEX above rafter insulation assembly with GUTEX Thermosafe-homogen and 

GUTEX Multiplex-top

Concrete or clay roof 

tiles 

Battens 


between the rafters 

GUTEX Thermoflex/ 

GUTEX Thermosafe- 

homogen 


with tongue and groove 

Vapour retarder/Air 

barrier 

Battens and interior 

wall substrate (wallboard, 

etc.) 

Interior view 

Old buildings 

Between Rafter Insulation 

GUTEX Multiplex-top, GUTEX Thermosafe-homogen, 

GUTEX Ultratherm, GUTEX Thermoflex 

For between rafter applications, 

it is important that the 

insulation boards have sufficient 

flexibility and resilience 

to enable them to bend, 

return to original form and 

join and fit tightly. GUTEX 

Thermoflex wood fibreboard 

meets all these criteria, performing 

superbly in framed 

and between rafter structures. 

Exterior view 

New buildings 


The combined features of 

insulation against heat and 

cold, soundproofing, fire protection, 

vapour permeability 

and humidity control offered 

by this product provide a 

much higher level of living 

comfort. 


over the rafters 

GUTEX Thermosafehomogen/ 

GUTEX 

Thermoflex 

Vapour retarder/Air 

barrier 

Battens 

Interior wall substrate 

(wallboard, etc.) 

7

1 

▼ 

Rain Tight Decking 


GUTEX Ultratherm 

Roof decking should be water 

tight to protect buildings from 

the ingress of moisture in the 

event shingles or tiles are 

damaged by a storm. GUTEX 

Multiplex-top and GUTEX 

Ultratherm, both rain tight 

sub-plate boards, can withstand 

the elements for up to 

10 weeks in an uncovered 

state. 

1 Installation directly on the rafters 

2 Installation of the battens 

2 3 

8 

GUTEX roof decking boards 

also significantly increase the 

sound, heat and cold insulation 

performance of roof 

constructions. 

▼ 

3 Eaves detail 

Tongue and groove joint along the width 

Tongue and groove joint along the length 

▼ 

4 Fastening with cross battens 

4

▼ 

Installation of GUTEX Thermoflat 

Flat Roofs 

GUTEX Thermoflat 

GUTEX Thermoflat is designed 

for use on all flat roofs 

and is virtually unlimited in its 

range of application. Roofing 

material can be installed 

directly over it and left exposed, 

covered with gravel or 

serve as roof terrace. GUTEX 

GUTEX Thermoflat installed over wood substrate 

GUTEX Thermoflat installed over concrete substrate 


Thermoflat is equally suitable 

for new or old wood, metal or 

masonry substrates and offers 

buildings all the advantages of 

GUTEX insulation boards. 

9

Vented Facades 

GUTEX Multiplex-top, GUTEX Ultratherm, 

GUTEX Thermosafe-homogen, GUTEX Thermosafe, 

GUTEX Thermoflex, GUTEX Thermosafe-wd 

Still another variation of 

exterior wall is the vented 

façade. Here as well, GUTEX 

wood fibreboards offer may 

Vented façade assembly over framed 

construction 

10 

key advantages, whether for 

solid masonry and wood substrate 

or for wood frame 

construction. 

Vented construction over masonry

Installation over masonry 

Installation over framed constructions 

� 

� 

� 

WDVS 

GUTEX Thermowall 

GUTEX Thermowall 

GUTEX Thermowall-gf 

The GUTEX Thermowall 

external thermal insulation 

composite system uses 

GUTEX Thermowall boards. 

Precisely engineered and 

code-compliant, the system is 

suitable for nonvented wood 

and smasonry applications 

and provides a very noticeable 

improvement in indoor 

environments. Thanks to their 

single-ply construction, 

homogenous cross section 


and limited dimensional 

tolerances, the plaster baseboards 

are remarkably easy 

to install. The GUTEX 

Thermowall composite 

system is extremely impact 

resistant and satisfies the 

highest sound and thermal 

insulation performance 

requirements. 

11

Renovation of Walls 

Upgrading the interior sides of exterior walls 

with GUTEX Thermoroom 

There are various reasons 

why exterior walls in older 

buildings often can only be 

insulated from the inside. 

GUTEX Thermoroom was 

specifically designed for such 

situations. Thanks to its single-ply, 

homogenous construction, 

GUTEX Thermoroom 

adheres with plaster 

to the substrate for simple, 

quick installation without 

mechanical fasteners. Woodfibre 

insulation boards offer 

many advantages, including 

excellent insulation against 

heat and cold, increased 

soundproofing, biological 

safety, all of which are essential 

for a pleasant, healthy 

12 

living environment. 

Today, discerning homeowners 

and developers 

demand biologically safe 

building products that are 

healthy and provide consistent, 

lasting thermal insulation 

of outer walls. GUTEX 

Thermoroom has been 

awarded the natureplus ® seal 

of quality, an international 

label verifying that building 

prod-ucts and furnishings 

bearing this mark are biologically 

safe and are manufactured 

using environmentcompatible 

techniques from 

raw materials obtained 

through sustainable forestry 

practices. 

A 

B C 

A Apply GUTEX Klebe- und Spachtelputz (anchoring 

and filling compound) to the substrate 

B Press the GUTEX Thermoroom firmly onto the wall 

C Apply the plaster over the board

Installation cavity planes 

A 

B 

A Fastening GUTEX Thermoinstal 

B Cutting the channels for the service lines 

C Fastening of the gypsum board 

C 

Installation Cavities and 

Lightweight Partition Walls 

GUTEX Thermosafe-homogen, GUTEX Thermoflex, 

GUTEX Thermoinstal 

Wood framed houses often 

have a second plane on the 

inside of exterior walls where 

the power, heating and plumbing 

lines are installed. 

GUTEX Thermoinstal installs 

with full surface contact to 

the sheathing. The worker 

cuts the channels in the board 

prior to covering it with wallboard. 

Insulation in such areas 

provides the entire building 

element with effective thermal 

and sound insulation. 

Lightweight wood framed partition 

wall with GUTEX Thermoflex/GUTEX 

Thermosafe-homogen 

Besides their function dividing 

open areas into rooms, lightweight 

partition walls must 

meet soundproofing and fire 

protection requirements. 

Thanks to their open-pore 

structure, wood fibreboards 

absorb both structure born 

noise and indirect reflected 

sound. GUTEX fibreboards 

are classified with fire ratings 

of F30 to F90 for use with 

both metal and wood post 

wall constructions. 

Lightweight partition walls 


Lightweight metal framed partition wall with 

GUTEX Thermoflex/GUTEX Thermosafehomogen 

13

Concrete Floors 


GUTEX Thermofloor 

GUTEX Thermosafe-nf 

GUTEX Happy Step 

GUTEX floorboards are 

suitable for both floors over 

concrete and floors over 

wood beam ceilings. 

To ensure effective soundproofing 

with concrete substrates, 

it is necessary to 

decouple the concrete ceiling 

from the floor covering that 

is walked on. GUTEX wood 

fibreboards excel at this task. 

GUTEX’s diverse selection 

of insulation boards provi- 

14 

des a virtually unlimited range 

of constructional variations. 

Highly resistant to compressive 

forces, the insulation 

fibreboards are suited for 

use under, wet screed, mastic 

asphalt, particle or chipboard, 

OSB substrate floorboards, 

dry screed, engineered wood 

flooring, laminate flooring and 

solid wood planking. 

GUTEX Happy Step installs in a floating, 

staggered joint arrangement. Suitable 

floor coverings include laminates, finished 

parquet or carpet. 

GUTEX Thermosafe-nf with joint strips installed on wd under solid wood 

planking 

GUTEX Happy Step installed over cement screed. 

GUTEX Thermofloor or GUTEX Thermosafe-wd is ideal for 

use between cement screed and concrete floors

Once the surface is dust-free and clean, 

lay the trickle protection paper/moisture 

barrier. Install an insulating strip around 

the perimeter of the floor. Then install 

GUTEX Thermofloor/ Thermosafe-wd as 

impact soundproofing and cover it with the 

GUTEX Thermosafe-nf system. 

Floors Over Wood Beam 

Ceilings 

GUTEX Thermosafe-wd, GUTEX Thermofloor, 

GUTEX Thermosafe-nf, GUTEX Happy Step 

GUTEX insulation floorboards 

are suitable for use in 

many different floor assemblies. 

GUTEX Thermo-safewd, 

an extremely compression 

resistant product, is ideal 

for use where very thick 

insulation is required under 

dry or wet screed. If added 

soundproofing is desired, either 

GUTEX Thermofloor or 

GUTEX Thermosafe-nf floorboards 

are the best choice. 

When engineered wood 

GUTEX Thermosafe-wd installed in a floor 

over an exposed wood beam ceiling 

GUTEX Thermosafe-nf installed with joint 

strips over a solid wood plank floor 

1 2 3 

4 


flooring or laminate flooring 

is concerned, GUTEX Happy 

Step delivers the extra impact 

insulation that is typically 

required of sub flooring 

boards for such assemblies. 

With the availability of so 

many different products, it’s 

easy to understand why 

GUTEX is the first stop when 

it comes to finding the most 

suitable, easy to install product 

for the specific sound or 

thermal insulation application. 

15


Facts and Figures 

Joints 

Length (mm) 

Width (mm) 

Nominal thickness (mm) 

Actual coverage, length and 

width (mm) 

Area per board (m²) 

Weight per board (kg) 

Weight per m² (kg) 

Boards per pallet 

Square metres per pallet (m²) 

Weight per pallet (kg) 

Bulk density (kg/m³) 

Thermal conductivity 

λ (W/mK) 

D 

Thermal resistance R D (m²K/W) 

Vapour diffusion factor (µ) 

sd-Value (m) 

Compression resistance/comp. 

strength (kPa) 

Tensile strength perpendicular to 

the surface (kPa) 

Short-term water absorption 

(kg/m²) 

Dynamic stiffness (MN/m) 

Compressibility (mm) 

Air flow resistance (kPas/m³) 

Specific heat capacity (J/kgK) 

– p 16 – 

4102:B2 construction materials code 

Multiplex-top 

Tongue + groove 

DIN EN 13171 2) 

2500 

750 

18 22 28 35 

2476 x 2480 x 2480 x 

726 730 

1.875 

722 

6.75 8.25 10.5 13.12 

3.6 4.4 5.6 7.0 

55 45 35 28 

103.13 84.37 65.62 52.5 

530 530 430 400 

200 

0.044 

0.41 0.50 0.64 0.80 

3 

0.054 0.066 0.084 0.105 

200 

40 

≤ 1 

100 

2100 

Ultratherm 


DIN EN 13171 2) 

1780 

600 

50 60 80 100 120 140 160 

1760 x 572 

9.6 11.5 15.4 

1.07 

19.2 23.1 26.9 30.8 

9.0 10.8 14.4 18 21.6 25.2 28.8 

40 34 26 20 18 14 12 

42.72 36.31 27.77 21.36 

400 

19.22 14.95 12.82 

180 

0.042 

1.19 1.43 1.90 2.38 2.86 3.33 3.81 

3 

0.15 0.18 0.24 0.30 0.36 0.42 0.48 

Thermal resistance is derived from λ90/90 and the board thickness. 

GUTEX Multiplex-top or GUTEX Ultratherm: Guaranteed by the Central Association of German Roofers 

Test reports and test certificates provided upon request. 

150 

30 

≤ 1 

100 

2100 

Multitherm 


DIN EN 13171 2) 

1270 

600 

20 40 60 80 100 120 140 160 

1250 x 580 

0,76 

2.1 4.3 6.4 8.5 10.7 12.8 14.9 17.1 

2.8 5.6 8.4 11.2 14 16.8 19.6 22.4 

220 108 72 54 44 36 32 28 

167.64 82.30 54.86 41.15 33.53 27.43 24.38 21.34 

510 

140 

0.039 

0.51 1.03 1.54 2.05 2.56 3.08 3.59 4.10 

* Further dimensional information available on 

request. 

** Approval No. Z-23.15-1404 

3 

0.06 0.12 0.18 0.24 0.30 0.36 0.42 0.48 

70 

10 

≤ 2 

100 

2100 

40 60 

3.3 4.95 

4.4 6.6 

112 70 

84 52,5 

1.08 1.62 

0.12 0.18

Thermosafe-homogen 

Butted Rebate 

DIN EN 13171 3) 

1200 

625 

80 100 120 140 160 180 200 220 240 

0.75 

1185 x 610 

6.6 8.25 9.9 11.55 13.2 14.85 16.5 18.5 19.8 

8.8 11 13.2 15.4 17.6 19.8 22 24.2 26.4 

56 42 36 32 28 24 22 20 18 

42 31.5 27 24.0 21.0 18.0 16.5 15 13.5 

110 

0.037 

2.16 2.70 3.24 3.78 4.32 4.86 5.41 5.95 6.94 

0.24 0.30 0.36 0.42 0.48 0.54 0.60 0.66 0.72 

40 

10 

≤ 2 

100 

2100 

Thermosafe 

Butted 

DIN EN 13171 4) 

1200 

625 

20 40 60 80 100 

2.4 4.8 

0,75 

7.2 9.6 12.0 

3.2 6.4 9.6 12.8 16.0 

220 100 66 50 40 

165 75 49.5 

490 

37.5 30 

160 

0.037 

0.54 1.08 1.62 2.16 2.70 

5 

0.10 0.20 0.30 0.40 0.50 

20 

10 

100 

2100 

Thermoflex 

Butted 

DIN EN 13171 1) 

1220 

570 

40 60 80 100 120 140 160 180 200 220 240 

1.25 1.88 2.5 3.13 3.76 

0,694 

4.3.8 5.01 5.63 6.26 6.88 7.51 

1.8 2.7 3.6 4.5 5.4 6.3 7.2 8.1 9.0 9.9 10.8 

112 70 56 42 36 32 28 24 20 22 20 

77.88 48.68 38.94 29.21 25.03 22.25 

200 

19.47 16.69 13.91 15.3 13.91 

DE-143-00002 

DIN EN ISO 14001:2005 

Umweltmanagementsystem 

Zert.-Nr. 010208 

GUTEX00 

45 

0.038 

1.05 1.58 2.11 2.63 3.16 3.68 

2 

4.21 4.74 5.26 5.79 6.23 

0.08 0.12 0.16 0.20 0.24 0.28 0.32 0.36 0.4 0.44 0.48 

5 

2100 

Thermoflat 

Rebate 

DIN EN 13171 2) 

1230 

600 

100 120 140 160 

1215 x 585 

0.738 

10.3 12.4 14.5 16.5 

14 16.8 19.6 22.4 

44 36 32 28 

32.47 26.57 23.62 20.66 

490 

140 

0.039 

2.56 3.08 3.59 4.10 

3 

0.40 0.44 0.42 0.48 

70 

7.5 

≤ 1 

100 

2100 

1) 0104-0307-012-1 

2) 0104-0604-012-2 

3) 0104-0604-012-3 

4) 0104-0710-012-4 

– p. 17 –


Facts and Figures 

Joints 

Length (mm) 

Width (mm) 

Nominal thickness (mm) 

Actual coverage, length and 

width (mm) 

Area per board (m²) 

Weight per board (kg) 

Weight per m² (kg) 

Boards per pallet 

Square metres per pallet (m²) 

Weight per pallet (kg) 

Bulk density (kg/m³) 

Thermal conductivity 

λ (W/mK) 

D 

Thermal resistance R D (m²K/W) 

Vapour diffusion factor (µ) 

sd-Value (m) 

Compression resistance/comp. 

strength (kPa) 

Tensile strength perpendicular to 

the surface (kPa) 

Short-term water absorption 

(kg/m²) 

Dynamic stiffness (MN/m) 

Compressibility (mm) 

Air flow resistance (kPas/m³) 

Specific heat capacity (J/kgK) 

– p. 18 – 

Thermoinstal 

Butted 

DIN EN 13171 

1250 

600 

50 

0.75 

5.6 

7.5 

84 

63 

500 

150 

0.039 

1.28 

4102:B2 construction materials code 

3 

0.15 

100 

10 

100 

2100 

Thermoroom 

Butted 

DIN EN 13171 

Thermosafe-wd 

Thermal resistance is derived from λ90/90 and the board thickness. 

GUTEX Multiplex-top or GUTEX Ultratherm: Guaranteed by the Central Association of German Roofers 

Test reports and test certificates provided upon request. 

1200 

500 

20 40 60 80 100 

0,6 

1.6 3.1 4.7 6.2 7.8 

2.6 5.2 7.8 10.4 13 

108 54 36 26 22 

64.8 32.4 21.6 15.6 13.2 

190 

130 

0.038 

0.53 1.05 1.58 2.11 2.63 

3 

0.06 0.12 0.18 0.24 0.3 

50 

10 

100 

2100 

Butted Rebate 

DIN EN 13171 3) 

1250 

600 

20 30 40 60 80 100 120 140 160 

0.75 

1235 x 585 

2.1 3.2 4.2 6.3 8.4 10.2 12.6 14.7 16.8 

2.8 4.2 5.6 8.4 11.2 14 16.8 19.6 22.4 

220 140 108 72 54 44 36 32 28 

165 105 81 54 40.5 33 27 24 21 

490 

140 

0.039 

0.51 0.77 1.03 1.54 2.05 2.56 3.08 3.59 4.10 

3 

0.06 0.09 0.12 0.18 0.24 0.30 0.36 0.42 0.48 

70 

10 

100 

2100 

Thermosafe-nf 

T + G 

DIN EN 13171 4) 

1190 

380 

41/40 

1170 x 360 

0.45 

2.41 

5.3 

75 

33.92 

260 

130 

0.039 

1.11 

* Further dimensional information available on 

request. 

** Approval No. Z-23.15-1404 

3 

0.12 

30 

2 

50 

2100 

Thermofloor 

Butted 

DIN EN 13171 4) 

1200 

600 

21/20 31/30 

0.72 

2.4 3.6 

3.4 5 

180 120 

129.6 86.4 

450 

160 

0.039 

0.54 0.79 

5 

0.11 0.15 

30 

2 

100 

2100

Happy Step 

Butted 

DIN EN 13171 

860 

590 

4 6 

0.5 

0.51 

0.79 

0.96 1.56 

900 640 

456.7 324.7 

560 

240 260 

0.046 

0.087 0.13 

5 

0.02 0.03 

100 

≤ 2 

100 

2100 

Thermowall 

Butted T + G 

DIN EN 13171 2) 

1250 830 2600/2800 1300 

590 600 1250 600 

20 40 60 80 100 120 140 160 80 100 120 80 100 120 140 160 

DE-143-00002 

DIN EN ISO 14001:2005 

Umweltmanagementsystem 

Zert.-Nr. 010208 

GUTEX00 

1276 x 576 

0.738 0.498 3.25/3.5 0.78 

2.4 4.7 7.1 9.4 8.0 9.6 11.2 12.7 41.6/44.8 52.0/56.0 62.4/67.2 10.0 12.5 15.0 17.5 20.0 

3.2 6.4 9.6 12.8 16 19.2 22.4 25.6 12.8 16.0 19.2 12.8 16 19.2 22.4 25.6 

220 108 72 54 40 32 28 24 13 10 8 54 44 36 32 28 

162.25 79.65 53.10 39.83 19.92 15.94 13.94 11.95 42.25/45.5 32.50/35.0 26.0/28.0 42.12 34.32 28.08 24.96 21.54 

540 320 560/600 590 

160 

0.039 

0.51 1.03 1.54 2.05 2.56 308 3.59 4.1 

3 

2.05 2.56 3.08 2.05 2.56 3.08 3.59 4.10 

0.06 0.12 0.18 0.24 0.3 0.36 0.42 0.48 0.24 0.30 0.36 0.24 0.3 0.36 0.42 0.48 

100 

10 

≤ 1 

100 

2100 

Thermowall-gf 

T + G Butted 

DIN EN 13171 2) 

1300 2600/2800 

600 1250 

40 60 40 60 

1276 x 576 

0.78 3.25/3.5 

5.9 8.9 24.7/16.6 37.1/39.9 

7.6 11.4 7.6 11.4 

108 72 25 16 

84.24 56.16 81.5/87.5 52/56 

720 640/680 

190 

0.043 

0.93 1.40 0.93 

3 

1.40 

0.12 0.18 0.12 0.18 

200 

30 

≤ 1 

100 

2100 

Standard-n 

Butted 

DIN EN 13171 

2500 2500* 

1500 1000 

6-18 6-18 

3.75 2.5 

5.6-16.9 3.8-11.3 

1.5-4.5 1.5-4.5 

170-55 

125-637 

1000 700 

250 

0.046 

0.1-0.4 

5 

0.03 - 0.09 

100 

≤ 2.0 

100 

2100 

1) 0104-0307-012-1 

2) 0104-0604-012-2 

3) 0104-0604-012-3 

4) 0104-0710-012-4 

– p. 19 –

Insulation against the heat in summer 

GUTEX wood insulation boards protect living 

areas from high temperatures, in particular, 

areas under the roof. Thanks to their high thermal storage 

capacity, they effectively dampen the flow of warmth from 

exterior to interior areas. 

Insulation against the cold in winter 

Effective insulation reduces heating bills and creates 

a comfortable living environment in winter. 

Due to their low thermal conductivity (λ D = 0.037 W/mK), 

GUTEX insulating wood fibreboards provide optimum insulation 

in winter, protecting the interior of houses from 

heat loss and ingression of cold. 

Pleasant living environment 

GUTEX wood fibre insulation boards are 

vapour permeable (µ = 3), regulating the living 

environment with their ability to absorb and release up to 

20% of their weight in moisture without the loss of their 

insulation capacity. 

Soundproofing 

The open-pore structure of GUTEX wood 

fibreboards and their high absorption volume 

contribute to their ability to deliver superb soundproofing 

against airborne and impact noise. 

Fire protection 

GUTEX wood fibre insulation boards easily comply 

with fire protection regulations. Various individual 

certificates of approval are available for F30-B to F90-B fire 

resistance ratings. 

Environmental compatibility 

The raw material for all GUTEX insulation boards 

comes from wood that is harvested and grown 

using sustained forestry management practices. 

GUTEX exclusively uses untreated spruce and fir chips 

and shavings, which are by-products obtained from other 

timber manufacturing processes. All GUTEX insulation 

boards are tested and certified as biologically safe and 

compatible with other building materials (natureplus © seal 

of quality). 

Recyclability 

GUTEX wood fibreboards are completely 

recyclable and, provided wood preservatives have 

not contaminated them, can be disposed of at the nearest 

recovery centre. 

User friendly 

GUTEX insulation boards, manufactured according 

to the highest quality standards, are characterised 

by absolutely minimum dimensional deviation. This, 

combined with the detailed installation instructions 

provided by the manufacturer, makes GUTEX products a 

pleasure to work with. 

Made in Germany 

For more than 80 years, GUTEX, a family 

owned and operated company, has 

manufactured insulation boards at its plant in Waldshut- 

Tiengen, which is located in the southern Black 

Forest. All GUTEX insulation boards carry the CE and 

U marks and are produced according to the current 

applicable standards. GUTEX’s external thermal insulation 

system (ETICS) is approved by the German building 

authorities. 

GUTEX’s customer service 

An important part of GUTEX’s customer service is its 

qualified assistance. Whether you require help with a 

private single-family house or commercial property, 

GUTEX’s trained and qualified staff will gladly assist you. 

GUTEX product training 

Architects, craftsmen, wholesalers, sales staffs and de- 

velopers can benefit from the workshops GUTEX offers, 

which address specific topics, such as the application of 

physics to the building trade, construction techniques, 

product applications, etc. Visit our website for further 

information or give us a call. 

N A T U R A L L Y M A D E F R O M W O O D 

GUTEX Holzfaserplattenwerk, Gutenburg 5, 79761 Waldshut-Tiengen, Germany, Phone 07741/6099-0, Fax 07741/6099-57, www.gutex.de, E-mail: info@gutex.de 

07/2011 Photographs and drawings: Archiv Gutex, Photos page 2 and 3: Wolf-Haus, Huf-Haus,Weberhaus, Ligno Trend

Wood Fibreboard Product Applications - Ecobuild

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