Reed board


A Natural thermal and sound insulation board, made of Estonian reed.


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.

ISULANT W/MK Μ PEI MJ/KG
Phragmites Australis (Reed) 0,055 2-4 0,54
Cellulose - bow 0,040 1-2 2,94
Cork- panels 0,045 10-15 7,05
Wood fiber panels 0,045 5-10 17,00
Rock wool 0,040 1-2 22,12
Glass wool 0,040 1-2 34,60
Expanded polystyrol 0,040 20-200 99,20
Expanded Polietilen 0,040 2000 107,20
Extruded polystyrol 0,035 80-300 110,20
Polyurethane 0,030 30-100 126,20

 

Reed board (25 & 50 mm)

PRODUCT DIMENSIONS COVERAGE THICKNESS    
Reed board 600 x 2000 mm 1.20 m² 25 mm    
Reed board 600 x 2000 mm 1.20 m² 50 mm