Most Energy Efficient Folding Glass Wall

January 20, 2015

SAN FRANCISCO – In another move that will redefine what is possible in architecture and design, NanaWall Systems unveils the thinnest profile, most energy-efficient opening glass wall on the market—the new NanaWall SL80/81 Folding Series. With an ultra-thin profile, unparalleled thermal performance and virtually unlimited configuration options―including inward or outward opening, the system promises to create entirely new possibilities in residential and commercial applications.

NanaWall SL80/81 Folding Series debuted at the International Builders Show 2015 in Las Vegas in a new NanaWall Systems booth which featured an impressive, 33-foot-wide SL80/81 installation.

“Our new SL80/81 Folding Series is so thin, it must be seen to be appreciated,” notes NanaWall Systems CEO Ebrahim Nana. “The frame profiles are just 1-7/8 inches, yet individual panels can be specified up to ten feet tall and more than three feet wide. Furthermore, with a triple insulated core, this folding system is extremely energy efficient.”

NanaWall SL80/81 Folding Series is an aluminum framed, thermally broken system which allows for expansive glass walls—and broad vistas when opened. The SL80 features a smooth rounded frame profile, compared to the angular profile of the SL81.

The SL80 and SL81 are the most energy efficient of its kind on the market and are rated, certified, and labeled National Fenestration Rating Council 100/200 and meet Energy Star standards. The system also excels at air and water resistance as well as superior sound insulation.

With floor supported technology, the new system offers ultra-smooth operation (rolling on stainless steel wheels on a stainless steel track), and more flexibility for applications where a building’s height might change over time, such as from settling or snow loads. View our complete line of folding door systems at