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Screen Walls

Skylight-system

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Skylight system

Details

Inventors: Hammond, Robert T.;
Assignee:
Primary Examiner: Purser; Ernest R.
Assistant Examiner: Braun; Leslie A.
Attorney, Agent or Firm: Morse, Altman, Oates & Bello

A skylight system is provided for installation on a roof in such a manner to remain weather-tight over a wide range of temperatures. Transparent or translucent panels in aluminum frames are mounted to a steel roof of a building by suitable connectors. Upon a change in temperature, the aluminum frame will expand or contract at a rate different from that of the steel roof, causing relative displacement between the skylight and the roof. To allow for a weather-proof seal to be maintained between the skylight and the roof, a slip joint is provided by means of an aluminum flange fixed to the skylight frame and having an inwardly extending lip spaced above and parallel to the outer face of the skylight and a steel flashing having a U-shaped bend along its free edge slipped over the lip of the flange and at its opposite edge being attached to the roof. A slip joint is thus provided between the lip of the aluminum flange and the U-shaped bend of the steel flashing to allow expansion and contraction of the skylight with respect to the roof without impairing the weather-tight seal.

DETAILED DESCRIPTION This invention features a new system for installing a skylight to a roof of dissimilar materials comprising a flange fixed to the skylight frame and formed with an outer lip extending in spaced parallel relation to the outer face of the skylight, the flange being of a material having the same coefficient of thermal expansion as the skylight frame, and a flashing fixed at one end to the roof and at the other end formed with a U-shaped bend slidably engaging the lip in a slip joint, the flashing having a co-efficient of thermal expansion similar to that of the roof whereby a weather-tight seal will be maintained between the lip and the bend regardless of relative movement between the skylight and the roof.

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