From the Sumitomo/Society Interface

Share the aspirations of people working for the Sumitomo Group
who are devoting their energy and talent to socially beneficial endeavors
in a host of fascinating fields.

Nippon Sheet Glass
Environmentally friendly vaccum
insulating glass for a bright future

Yumi Ogiso
Technical Development & Evaluation Group
Downsteam Operations Div.
Architectural Glass Strategic Business Unit Japan
Nippon Sheet Glass

Hiroshi Asaka
Assistant to Manager
Architectural Glass Strategic Business Unit Asia
Nippon Sheet Glass

Also fits existing window frames. Conducive to healthy lifestyles

Super Spacia (right) with Micro Spacers 28mm apart, compared with the previous model’s 20mm interval. Super Spacia won the 2017 Grand Prize for Excellence in Energy Efficiency and Conservation.

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.

Only about 10mm thick, Super Spacia fits existing window frames. Typically in Japan, only the rooms where people stay for a long time are heated in the winter. The large difference in temperature between a living room and a hallway or a bathroom can cause a person’s blood pressure to rise sharply or plummet, posing a health risk.
“Well-insulated homes are conducive to healthy lifestyles,” Asaka emphasizes.

This May Nippon Sheet Glass announced a further improved product with thickness of just 8mm. Take a look through Super Spacia and you will see a bright future!

Reprinted from SUMITOMO QUARTERLY NO.153

Number(From the Sumitomo/Society Interface)