Oriented structural straw board

Oriented structural straw board (OSSB) is an engineered board that is made by splitting straw and formed by adding formaldehyde-free adhesives and then hot compressing layers of straw in specific orientations. Research and development for OSSB panels began in the mid 1980s and was spearheaded by the Alberta Research Council, Canada (today AITF), which identified the straw strand manufacturing technology using formaldehyde-free (p-MDI) adhesives.

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