External corner formative member

Details External corner formative member External corner formative member

E - Fixed Constructions

04

F

E04F 19/00 (2006.01) E04B 2/70 (2006.01) E04F 19/02 (2006.01)

Patent

CA 2290917

An external corner formative member which comprises an angled corner plate portion, and a pair of groove portions formed on the opposite sides of the corner plate, respectively, for receiving a side edge portion of a building board, wherein at least one rib which is adapted to be contacted with the building board so as to function as a weir for preventing rain water from penetrating (or for receiving the kinetic energy of rain water) is projected from the bottom of the groove portions. A broad space is formed between the rib and a back plate portion of the groove so as to interrupt the flow of rain water running toward the interior of building frame. A ridge functioning as a weir may be formed on the back plate portion of the groove portion.

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