Do you have questions about products and systems, prices or building physics and statics? Your construction project raises a number of questions, and you're not alone!
At Gutex, we've been setting the standard for environmentally-friendly insulation since 1932 - a long time during which we've already received many different questions. We've compiled the most frequently asked questions for you here - and with a bit of luck, the answer you're looking for is already here!
The Gutex Ultratherm and Gutex Multiplex Top sub-roofing panels meet the requirements of temporary roofing from a roof pitch of 15° up to an RDN of less than 8° and up to three higher requirements without additional glueing or film covering. The panels belong to technical class UDP-A according to ZVDH.
The Gutex Ultratherm and Gutex Multiplex Top sub-roofing panels can be exposed to the elements for up to three months.
You will find the ingredients on the various product pages under "Description & Benefits" and in the technical data sheets available there under "Technical documents & Brochures".
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] |
|---|---|---|
| Gutex Multiplex-top | 22 | 85 |
| 35 | 100 | |
| Gutex Ultratherm | 50/60 | 110 |
| 80/100/120/140/160 | 125 |
Thinner board thicknesses or small quantities of flexible wood fibre insulation blanket Gutex Thermoflex you can use a >Knife for insulating materials for larger quantities, we recommend an electric insulation saw with a corrugated blade, such as Festool's cordless insulation saw or Bosch's Alligator.
Construction examples for insulating the upper floor ceiling can be found in theOnline catalogue of detailed drawingsas well as in the Detailed Drawings Catalogue.
Under-roof sheets Gutex Ultratherm and Gutex Multiplex Top can be freely exposed to the elements for three months.
Under-roof sheets Gutex Ultratherm and Gutex Multiplex Top for roof pitches of 15° and above, meet the requirements of temporary roofing up to an undercut of the RDN of 8° and up to three additional requirements without glueing or covering with additional film. The panels are assigned to technical class UDP-A in accordance with ZVDH.
Fasten sub-roofing panels up to 60 mm thick with nails and staples that are at least galvanised: see also the technical data sheets. Gutex Ultratherm and Gutex Multiplex Top from a panel thickness of 80 mm upwards, you must fasten the underroof panels with approved screws. You will find the forms for dimensioning the fasteners here.
The distances to chimneys, flues or flue gas ducts are governed by the Fireplace Ordinances of the Länder (FeuV), § 8. The distance to combustible building materials is mainly determined by the type of flue and the temperature of the flue gas. If the flue gas temperature of the fireplaces does not exceed 160 °C at rated output, a distance of 5 cm is often sufficient. If you have any questions about the Fireplace Ordinance (FeuVo) of your Land, please contact the district chimney sweep responsible. The earlier you incorporate the Fireplace Ordinance into the planning of a new build or renovation, the easier it will be to implement.
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] |
|---|---|---|
| Gutex Multiplex-top | 22 | 85 |
| 35 | 100 | |
| Gutex Ultratherm | 50/60 | 110 |
| 80/100/120/140/160 | 125 |
The Tecadio roof renovation system consists of a rainproof underlay panel, moisture-regulating compartment insulation and a tested airtight membrane. Construction examples with U-value calculations can be found in the brochure"Gutex Tecadio roof renovation system - installationin theOnline catalogue of detailed drawingsin theCatalogue of detailed drawingsin the brochure"Construction proposals.
Construction examples with U-value calculations for internal roof renovation can be found in the brochure"Construction proposalsin theOnline catalogue of detailed drawingsas well as in theCatalogue of detailed drawings.
Construction examples with U-value calculations for on-roof insulation can be found in the brochure"Construction proposalsin theOnline catalogue of detailed drawingsas well as in theCatalogue of detailed drawings.
Construction examples with U-value calculations for insulation between rafters can be found in the brochure"Construction proposalsin theOnline catalogue of detailed drawingsas well as in theCatalogue of detailed drawings.
Gutex has a large number of fire-stop structures tested for constructions with fire resistances of F30-F90 (REI 30-REI 90) for walls, roofs, floors and ceilings that you can here to find out more, consult the brochure "Construction proposals" (PDF).
Gutex has a large number of fire-stop structures tested for constructions with fire resistances of F30-F90 (REI 30-REI 90) for walls, roofs, floors and ceilings that you can here to find out more, consult the brochure "Construction proposals(PDF).
U-value calculations for roof structures, external and internal walls, floors and ceilings can be found in the brochure "Construction proposals(PDF), in the Online catalogue of detailed drawings as well as Catalogue of detailed drawings.
The term ‘airtight’ or ‘airtightness’ is used in DIN 4108-7:2011-01 and defined as the property of a building material, building component [...] of a building not to be penetrated by air or to be penetrated only to a limited extent. The airtightness layer (usually applied on the room side) prevents air from flowing through the building element (convection). This layer is usually combined with the function of an anti-diffusion layer. ‘Windproof’ or ‘wind impermeability’ describes the level of protection provided to the insulation in the building component against the passage of cold outside air. The operating principle of any insulation is based on the inclusion of air in the insulating material, which is why the ideal case is insulation that is closed on all sides.
If you are a processor, our Gutex commercial partners will be happy to advise you on product availability, pricing and suitable system solutions. To find out more about our range of wood fibre insulation boards, batts and blown-in insulation, please contact your local distributor or Gutex commercial partner.
If you're a builder, and you buy our products and systems through our specialist partners, we'll be happy to put you in touch with a local processor who can provide you with an individual quotation for your construction or insulation projects. Use our Contact form!
If you would like to process our products yourself, you can buy them from a Gutex commercial partners near you.
If you are a wholesaler, please contact your External service contact to find out more about our offer, services and conditions, or get in touch with a Gutex commercial partner in your area.
This is a manufacturing process for wood-fibre insulation. To find out how it works, see Production & Logistics.
We produce our insulation solutions at the company's headquarters in Waldshut-Tiengen and at our second production site in Eschbach, in the Breisgau region of Germany. Find out more About us!
Construction examples for insulating the upper floor ceiling can be found in the Online catalogue of detailed drawings as well as in the Catalogue of detailed drawings.
Please note the following maximum installation heights, depending on the product: Gutex Thermosafe-wd (here on the product) :
| Coating on Gutex Thermosafe-wd | Max. height Construction height Gutex Thermosafe-wd |
|---|---|
| Wet screed | 140 mm |
| Mastic asphalt | 140 mm |
| Particleboard ≥ 25 mm | 140 mm |
| OSB panel ≥ 22 mm | 140 mm |
| Gutex Thermosafe-nf | 100 mm |
| Dry screed element ≥ 25 mm | 100 mm |
| Finished parquet ≥ 14 mm | 30 mm |
| Laminate ≥ 8 mm | 20 mm |
| Coating on Gutex Thermofloor | Max. thickness Gutex Thermofloor |
|---|---|
| Wet screed (cement, anhydrite, etc.) | 60 mm (2 x 31/30 mm) |
| Mastic asphalt | 60 mm (2 x 31/30 mm) |
| Particleboard ≥ 25 mm | 30 mm (1x 31/30 mm) |
| OSB panel ≥ 22 mm | 30 mm (1 x 31/30 mm) |
| Dry screed element ≥ 25 mm | 20 mm (1 x 21/20 mm) |
Gutex Thermosafe-nf (here to the product): For higher insulation structures under Gutex Thermosafe-nf use the Gutex Thermosafe-wd up to max. 100 mm
Gutex Thermofibre is an insulation system that uses wood fibre blown into the compartments using a blower and pipes, making it flexible and independent of format.
Gutex Thermoflex is flexible wood-fibre insulation in board form, suitable for use between rafters and in latticework.
With both types of insulation, you benefit from the high moisture regulation and vapour diffusion properties of wood fibre insulation.
Thinner board thicknesses or small quantities of flexible wood fibre insulation blanket Gutex Thermoflex can be cut with a knife for insulating materials.
For larger quantities, we recommend an electric insulation saw with a corrugated blade, such as Festool's cordless insulation saw or Bosch's Alligator.
You will find the ingredients on the various product pages under "Description & Benefits" as well as in the technical data sheets available there under "Technical documents & Brochures".
Our wood-fibre board insulation is produced in accordance with DIN EN 13 171 and is CE marked on the basis of the declaration of performance. The calculation of thermal conductivity (design values) is governed by DIN 4108-4. A general technical approval with Ü marking is not required.
Blown-in insulation Gutex Thermofibre is approved with a European Technical Assessment (ETA), for which a Declaration of Performance is issued and marked with the CE mark.
At Gutex, our motto is: together, for each other. Help us improve and help others who are looking for the same information as you. We look forward to hearing from you!
