Insulating Units Exposed to Wind and Weather – Load Sharing and Internal Loads

Franz Feldmeier

A change of temperature or barometric pressure results in a pressure difference between the cavity of an insulating glass unit and the exterior and causes a load to the single panes. In the case of a stiff system this load exceeds common wind loads distinctly. On the other hand external loads are shared by both panes. The new parameters "isochore pressure" and "insulating glass factor" allow a straightforward calculation of the resulting pressure difference and a design corresponding to common
uniform loads.

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