What is a VIP Panel?

Vacuum Insulation Panel – a form of thermal insulation consisting of a gas-tight enclosure surrounding a rigid core, from which the air has been evacuated.

Can panels be stacked during storage? 

Yes, but they will just take longer to condition (the middle panel will be the last to condition). For the quickest conditioning process, get as much air circulating around the panel as possible. If the panels must be stacked we recommend inserting a spacer (pencil, tongue depressor, etc.) between each panel.