Patent ID: 6105331
Filing Date: 2000-08-22
Classification: E04D,F24S,H02S,Y02A,Y02B,Y02E

Abstract:
A joist element, said joist element being configured to fasten a substantially flat plate-shaped structural element to a pitched roof, the pitched roof having an upper ridge portion disposed adjacent the roof peak and an eaves portion disposed below the roof peak, which ridge portion and eaves portion define a slope line in a ridge-eaves direction, said joist element comprising:a beam having a longitudinal axis;said beam being configured to be disposed longitudinally in the ridge-eaves direction;said beam having an upper surface defining a support plane for supporting a said substantially flat plate-shaped structural element on said upper surface;a lug disposed on said beam;said lug being configured to engage and support another joist element, upon the another joist element being disposed above said joist element in substantially the same slope line as said joist element, said lug allowing lengthwise sliding movement of the another joist element; andsaid lug being configured to support the another joist element at a height substantially spaced above said support plane.