GlazeGuard 1000 WR is a composite panel for use as a glazing infill made by laminating two prefinished aluminum skins to substrates of high density polypropylene. These stabilizers surround a expanded polystyrene (EPS) or isocyanurate (ISO) foam core. These panels are designed for use as a replacement or complement to glass in windows, storefront, railing inserts, etc. Similar in thickness to GlazeGuard 1000 (both are 1"), these panels offer more water resistance than the tempered hardboard composition. GlazeGuard panels are installed in aluminum glazing/storefront channels (by others) typically on setting blocks and sealed using rubber gaskets. Since they are encapsulated on all four sides by this channel, no mechanical fasteners, adhesives, or moldings are used in the installation of these panels.