FIELD: construction.
SUBSTANCE: roof umbrella comprises a cap designed for installation above a ventilation shaft channel, and fastening stands for connection by upper ends with the cap, and by lower ends - with the ventilation shaft. Upper ends of fastening stands installed at one of sides of the roof umbrella are connected with the cap by a non-detachable joint of "finger-eye" type, upper ends of fastening stands installed at the opposite side of the roof umbrella, are connected with the cap by a detachable joint with the help of a cylindrical finger, and lower ends of fastening stands are connected with the ventilation shaft by means of their placement in holes of bushings fixed by a welded joint to walls of the ventilation shaft.
EFFECT: invention provides for possibility of easy and quick access to channels of ventilation shafts, increased reliability of fixation.
5 cl, 3 dwg
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