Vacuum sealing a sacrificial glass panel to a structural glass panel

A walkway formed at least in part by a method of vacuum sealing a sacrificial panel to a structural panel, comprising:

• providing a sacrificial panel having a first side and a second, opposing side;
• providing a film, the film having a plurality of dots lasered therethrough;
• applying the film onto the first side of the sacrificial panel;
• removing the film from the sacrificial panel, leaving the dots on the first side of the sacrificial panel;
• applying a double-sided tape about the periphery of the first side of the sacrificial panel;
• providing a structural panel;
• placing the structural panel onto the first side of the sacrificial panel, wherein:
• the dots create a gap between the sacrificial layer and the structural layer;
• and the double-sided tape provides an airtight seal between the sacrificial layer and the structural layer;
• providing a needle coupled to a vacuum device;
• inserting the needle into the gap between the sacrificial layer and the structural layer;
• and
• operating the vacuum device to remove air from the gap between the sacrificial layer and the structural layer.