Straw construction panel

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The straw building board is a rigid self-supporting board that is used as an alternative to conventional drywall constructions based on gypsum.

In contrast to the common drywall construction consisting of a supporting structure that is to be planked on both sides with panel material, straw panels do not require a supporting structure. The environmentally friendly, economical and recyclable panels are made from various natural fibrous raw materials. The long-lasting panels have thermal and sound insulation as well as good fire protection and are available for a variety of applications to speed up construction processes. Other applications for thatch panels are load and non-load-bearing ceilings, roofs, doors, floors and prefabricated buildings. The material has been in construction for over 50 years.

Material properties and processing

Straw building panels consist of a solid core made of compressed wheat or rice straw . High pressure and temperatures (240 ° C) cause the straw to resinify. This resin ensures that the fibers stick together in a waterproof manner. The compressed panels are then laminated with recycled solid cardboard and a waterproof glue. The standard panel is manufactured in 0.8 m and 1.2 m width, whereby cable ducts or milled shafts can be provided for easier installation of electrical lines. The standard length is 2.55 m and 2.7 m. The high compression density and the associated lack of oxygen ensure that there is little risk of fire. In addition, no adhesives , alcohols or solvents that could accelerate the fire are added during production. As with burning wood, a layer of soot forms, which protects the not yet burning material parts from the flames for a while.

The workability of the product is similar to wood, it can be sawn, drilled, milled, nailed, screwed and glued. The straw building board is able to withstand high bracket loads of approx. 80 kg per screw without further structural measures. The panel achieves a sound insulation value of 32 dB.

literature

  • Sascha Peters, Materialrevolution II , pp. 68–69, partial view

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