Attic insulation with jute insulation

Insulate the roof truss sustainably

Attic insulation with jute insulation: materials

Ecological insulation materials are playing an increasingly important role. They not only enable a pollution-free livingbut also make one Contribution to environmental protection, For ecological insulating materials become renewable raw materials used, which can be processed without great energy consumption to insulation materials.

Because the Eco-friendly insulation recycled or composted they do not cause expensive and polluting hazardous waste. Meanwhile, there is a whole range of ecological insulation materials, to include insulation materials from hemp, seagrass, cellulose (waste paper), wood fiber and more recently also jute.

Due to the good properties, this material is therefore also suitable for the insulation of trusses.

What is jute?

By mistake, jute is often mistaken for a plant. In fact, this is one vegetable fiber of the corchorus plants, The natural fiber is located between the bark and the stem of the plant: the so-called bast, Through a special process, roasting, the natural fiber can be dissolved out.

Common is the water roasting, in which the plants are placed in water for several days. By subsequent breaking and swinging the individual components of the tropical plant are separated. The main cultivation area of ​​the Corchorus plants is in Bangladesh and India.

From used jute sack to high-performance insulating material

Attic insulation with jute insulation: materials

Jute sacks are recycled in the reindeer

The jute insulation is based not on freshly-won jute fibers, but on used jute sacks for food, These jute sacks transported coffee and cocoa beans from all over the world to German coffee roasters and chocolate makers.

Instead of ending up in waste incineration, the jute sacks are recycled. For this purpose, the Sacks are torn apart by machine in a ripper, so in the end again high quality jute fibers arise.

The fibers are with the Mineral soda as fire protection and with a textile backing fiber as a kind of binder mixed. Subsequently, a nonwoven fabric is produced in the carding machine in a mechanical process, which at the end in Thermobonding process heated to 170 degrees Celsius becomes.

In this way, the substance solidifies. When waste products produce higher quality products, this is called upcycling.

Versatile roof insulation

The ecological insulation material made of jute finds its use as intermediate spar insulation, under rafter insulation or as Aufsparrendämmung between the auxiliary rafters.

Furthermore, the Jutedämmstoff also for Insulation of metal stud walls, beamed ceilings, facing shells as well as of exterior and interior walls in wood frame and wooden stand construction be used.

Professionally with jute insulate

Attic insulation with jute insulation: jute

Insulation made of jute sacks

The Jutedämmstoff is available as a roll and therefore very flexible in its handling. Thanks to its easy installation, it is also suitable for home improvement.

The 1200 mm wide rolls can be easily with a common electric cutting tool or a serrated blade to edit. The insulation material is very skin-friendly during installation, he no annoying itching or other skin irritation triggers.

When it comes to handling, it hardly differs from other insulating materials: it has to be cut to size first. If the insulating material is used as an intermediate rafter insulation, it is recommended to roll the rollers one to one two centimeters wider as the actual rafter spacing.

Next you stick the Insulation elements between the rafters, Then a sealing tape is attached to the rafters and a vapor barrier film stapled to the rafters. The single ones Sheets of film should overlap approximately 10 cm, Thereafter, the seams of the film webs are sealed with tape.

At the end, a transverse battens are attached as a substructure. The resulting gap may provide space for additional under rafter insulation.

Best thermal protection due to low thermal conductivity

Jute has one above average insulation performance and, like most ecological insulation materials, has one higher thermal conductivity than conventional insulation material, The greater the thermal conductivity, the worse a building material will insulate.

While glass wool reaches very good values ​​between 0.032 to 0.035 W / mK (watts per meter times Kelvin), those of Hemp and wood fiber with 0.040 W / mK higher and thus worse. Jute is with a value of 0.038 W / mK an insulation material that is the best insulation among eco-insulating materials.

Summery heat protection

Apart from the heat protection, the Jutedämmstoff an effective summer heat protection in front.

The ecological insulation material distributes the heat from morning to night under the roof. That's about nine hours. Glass wool, on the other hand, can provide effective heat protection only until noon, or about four hours, under the same conditions.

Sustainable insulation material with high availability

The jute insulation is by no means an insulation material with limited availability of raw materials. Also in the future, the raw material jute will be enough. The world production of jute fibers is between two and three million tons annually. Can per year produced several 100,000 cubic meters of insulating material become.

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Video Board: Production of cellulose insulation