Ecological insulation
in wood fibre

Product overview

Insulate naturally, build sustainably:
Gutex insulating materials

Whether it's the roof, facade or interior fittings - with environmentally-friendly wood fibre insulation materials, you're doing yourself, your building and the environment a world of good.

Imagine a home where you feel comfortable all year round. That's exactly what Gutex wood fibre insulation materials offer. Not only do they protect against heat, cold and noise, they also promote a healthy indoor climate where you and your family can breathe easy. And they are sustainable down to the last fibre: made from PEFC-certified wood (PEFC/04-34-0006), they are durable and recyclable. Whether for your energy-efficient walls, your rain- and hail-proof roof, or your construction-safe interior design, our open-cell insulation materials diffusion and regulate humidity not only ensure the physical safety of the building, but also reduce the risk of mould inside or algae on the facades. With Gutex, you are not only insulating for today, but for generations to come: energy-efficient, environmentally friendly, comfortable and well thought-out.

Gutex insulating materials for
New construction and modernisation

Discover ecological wood fibre insulation materials for walls, roofs, floors and cellar ceilings - for both old buildings and new constructions.

Why insulate with wood fibre?

Because wood-fibre insulation is more than just a building material - it's a promise for the future: it protects the climate and enables circular construction, the building method of the future.

If you want to build sustainably and protect the climate - even beyond the reduced energy consumption of insulation - then wood-fibre insulation is the only option, because wood is the most durable of all building materials:Using environmentally-friendly wood fibresyou also use the carbon stored there as a component of the CO2- but wood fibre thermal insulation is not only recyclable - unlike conventional insulation materials, it's also compostable, which helps to combat the growing waste mountain.

 

To maximise this sustainability value, we process it to environmentally-friendly standards. If you'd like to find out more about the sustainable quality of our products, take a look at our certificates and seals.

Naturally, we also provide detailed information on the benefits of our environmentally-friendly insulation materials: from energy efficiency and protection against heat, cold, noise and fire to preserving the value of your building.

Frequently asked questions

In our FAQ section, converters will find clear answers to the ten most frequently asked questions about our insulating materials and their application. Click and find the information you need for your current project.
Are Gutex roof underlay panels rainproof? If so, from what roof pitch?

Under-roof panelsUltrathermandMultiplex-topfor roof pitches of 15° and above, meet the requirements of temporary roofing up to an RDN undershoot of 8° and no further requirements without additional gluing or film covering. The panels are assigned to technical class UDP-A in accordance with ZVDH.

How long can your under-roof panels be exposed to the elements?

Under-roof panelsUltrathermandMultiplex-topcan be exposed to the elements for up to three months.

What plaster components are permitted in Thermowall ITE?

Z-33.47-660 and Z-33.43-942 approvals for the thermal insulation systemThermowallyou can choose a coating from more than 15 manufacturers and find all the details - brands, components, use - in the approvals.

How do I fix Gutex Multitherm panels to ventilated facades?

You can use wood fibre insulation boardMultithermas an external cladding on frameworks, solid wood elements or masonry. Immediately fix the insulation panel with the ventilation batten. For the dimensioning of the fixings according to the object, please use the dimensioning service of your fixing manufacturer.

Do I need a facade sheet on Gutex Multitherm for ventilated facades?

In the case of a closed façade, you don't need an additional façade strip onMultithermin the case of open-joint formwork, we recommend the use of a UV-resistant, waterproof façade sheet.

How do I attach Thermowall plasterable insulation panels?

In timber-frame construction, fit the Thermowall/-gf/NF/Durioon flat wooden substrates such as solid wood walls, fit the plaster support panel, distributing it evenly according to our dowel diagrams. To fix, use the wood screwThermowallSTR H or stainless steel wide-back staples.

On mineral substrates, insulating panelsThermowallmust always be glued and doweled, for example using Gutex gluing and smoothing compound and Gutex STR U 2G screw dowels.

 

For more information, see the brochure "Gutex Thermowall WDVS - how to use".

How do you insulate the ceiling on the upper floor?

You can find examples of how to insulate the upper storey ceiling in the construction proposals (link). We also recommend Stampio, our wood-fibre insulation system for the upper storey ceiling.

What should I use to cut Gutex Thermoflex?

You can cut thinner board thicknesses or small quantities of the flexible wood fibre insulation blanketThermoflexfor larger quantities, we recommend using an electric insulation saw with a corrugated blade, such as the cordless insulation saw from Festool or the Alligator from Bosch.

What are the maximum distances between rafters for rafter-mounted insulation with Gutex underlay panels?

When insulating above the rafters with our sub-roofing panels, the following distances between the rafters must be observed:

Product 

Panel thickness [mm] 

Max. length Rafter centre distance [cm] 

GutexTop multiplex 

22 

85 

35 

100 

GutexUltratherm 

50 / 60 

110 

80 / 100/ 120/ 140/ 160 

125 

GutexMultitherm 

≥ 60 

90 

Where can I find information on the components of Gutex insulating materials?

You'll find the ingredients on the pages for each product under "Additional information" and on the technical data sheets under "Downloads".

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Certified and sealed

At Gutex, durability and quality are written in black and white.

Our insulation materials are synonymous with controlled quality and durability. Certificates such as natureplus or FDES environmental declaration sheets guarantee the highest standards - for peace of mind in every construction project. It goes without saying that our products comply with building regulations and with the relevant NF standards or bear the CE mark.

Wood fibre insulation for your home

If you're looking to build sustainably or renovate your old building, find out which wood fibre insulation materials are suitable for roofs, walls, floors and ceilings - and how our boards, batts and blown-in wood fibres do the job. Spoiler first: you can use our natural insulation materials throughout the house, except if they are in contact with the ground and above a flat roof waterproofing.