Curtain wall windows or Storefront windows are aluminum framed non-structural wall systems with glass in-fills. These large expanses of glass provide phenomenal day lighting and solar heat gain deeper into the building than traditional window styles. Curtain wall windows also allow a visual connection to the outdoors while protecting the interior space from the weather elements. This style is popular with the modern aesthetic in both residential and commercial applications where the nature of the system typically necessitates a completely custom design. This means the configuration possibilities are limited only by your imagination. Curtain wall window systems make a neoteric statement that attracts visual attention on both the interior and exterior of the building.