COVER Russian patent published in 2013 - IPC E04B7/00 

FIELD: construction.

SUBSTANCE: cover comprises runs and gable trusses with an upper belt of two channels, between walls of which there are descending braces from two channels paired with walls. Trusses comprise a bracing grid, and their node joints are made on bolts or self-drilling screws. Trusses are made of two semi-trusses of a pointed triangular shape. Upper and lower belts of semi-trusses are made as throughput out of two channels. Stands of the grid are arranged perpendicularly to upper belts of the semi-trusses and are let out beyond the border of their upper belts. Runs are attached to grid stand consoles. The lower support nodes of semi-trusses are connected with a round or channel tie. A ridge assembly of trusses is made of two or more horizontally arranged sections of channels, where belts of semi-trusses are lapped.

EFFECT: reduced labour intensiveness of cover making.

5 cl, 5 dwg