Abstract: Installation structure for installing and removing a sacrificial glazing panel. There is disclosed a removable retaining member for the sacrificial glazing panel that laterally pressures a primary glazing panel to seal and hold the primary glazing panel and holds the sacrificial glazing panel without lateral pressure. A unitary, dual-durometer retaining member is disclosed which is optimized for holding the primary glazing and the sacrificial glazing panel in different manners by having materials of two different hardnesses. Additionally, a retaining member is disclosed that has flocking material to reduce rattling of the sacrificial glazing panel.

Abstract: An installation structure and method for installing and removing a sacrificial glazing panel in a frame having a perimeter channel in which a deeper channel section is formed in the frame receiving an edge of the glazing panel to allow forcible shifting of the glazing panel so that an opposite edge clears the lip of an opposite channel section during installation and removal. A positioner element such as bowed leaf spring may be installed to reposition the glazing panel after the glazing panel is released so that the opposite edge is located to be retained by the lip after release.