Super Spacia debuted in October 2017, an addition to the Spacia series of vacuum insulating glass from Nippon Sheet Glass. Spacia is the very first commercially available product of this type in the world.
What makes the Spacia double-glazing series special is the vacuum layer between the two panes. As the vacuum layer prevents thermal conduction and convection, Spacia offers insulating capability around four times better than that of single glass and about twice that of conventional double-glazing glass. The insulating capability of Super Spacia is 54% better than that of Spacia. Its key feature is the Micro Spacer arraycomposed of minute pillars placed between the panes to keep the vacuum.
“These tiny pillars are disadvantageous in that they transfer heat from outdoors to indoors or vice versa. But by widening the spacing between the pillars from 20mm to 28mm, we halved the number of Micro Spacers, thus halving heat transfer via the Micro Spacers.” explains Yumi Ogiso.
“As house builders are striving to develop Zero Energy Houses (ZEH), that is, houses whose net annual energy consumption is zero, they are seeking glass with superlative insulatingperformance. Responding to this demand, we set about improving the performance of Spacia,” recalls Hiroshi Asaka, referring to the background of the Super Spacia development.