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OSB is easily identifiable by its characteristic wood strands. Oriented strand board (OSB), also known as flakeboard, sterling board and aspenite in British English, is a type of engineered lumber similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. It was invented by Armin Elmendorf in California in 1963.
Building a wall out of cob. Cob, cobb or clom (in Wales) is a natural building material made from subsoil, water, some kind of fibrous organic material (typically straw), and sometimes lime.The contents of subsoil naturally varies and if it does not contain the right mixture it can be modified with sand or clay.ob is an English term attested to around year 1600 for an ancient building material that has been used for building since prehistoric times. The etymology of cob and cobbing is unclear but in several tenses means to beat or strike which is how cob material is applied to a wall.