Saviukumaja’s Reed board is a rigid thermal and sound insulation board, used as a base for plastering with clay and lime plasters. It is produced in Saaremaa, the biggest island of Estonia. Estonia has a long tradition of reed which was used until 200-300 years ago in many ways, especially as roof-covering material.
The reed panel production starts in the winter with the reed harvesting. The reeds are cut as necessary before the worker put them into the panel-maker machine.
The panel-maker machine press them and inserts a zinced wireframe due to maintain the compression and a regulaar shape. At the end the bounds are trimmed with special mechanical cutters.
The reed is the best of all the other insulating material considering the energy cost. Insulating with reed panels it cost, in terms of PEI, 30 times less than usingPolyurethane. In the following scheme common insulating material are compared and sorted by PEI cost (the primary energy index, PEI, which estimate the energy flow into a product, considering all the production phases, the energy losses). Other values: W/mK is thermal conductivity and µ is vapuor diffusion resistance factor.