1. Keisoukun Gaina™
Case Study: Residential &
Commercial Application
One Will International
Yamashita-cho, Naka-ku 75 Banchi, Ogino Bldg. 6F, Yokohama, 231-0023 Japan
+81 80-3010-3071 | http://www.onewillinternational.com

2. Commercial: Warehouse
Summary
Applied to an apparel warehouse.
Installation May 2000
Applied to Roof (1300m2)
Region Saitama Prefecture, Japan
Warehouse
Color Light Blue (69-70L)
Warehouse Roof
Results
●Electricity savings comparison
Summer Results
• In 10 years they have saved over US$85,000 on energy
costs
• Temperature was lowered by 15°C on the second floor
• No need to water the roof in summer
• Winter heating efficiency rose
• Prolonged cycle for re-painting
Winter Results
275,000
225,000
175,000
125,000
75,000
25,000
May Jun
Jul
Aug Sept Oct
Before Painting
Nov Dec
1 year after
Jan
Feb Mar
Apr
10 years after
http://www.onewillinternational.com | +81 80-3010-3071

3. Commercial: Warehouse
Summary
Applied to cold storage facility Inland Industrial Park.
Installation May 2005
Applied to Roof (3800m2)
Region Shimane Prefecture, Japan
Color White (N-95)
Cold Storage Roof
Results
Outdoor temperature: 35℃
Temp interior
50 - 60℃
Refrigerator
temperature
3 - 5℃
Before
Temp interior
36 - 40℃
Refrigerator
temperature
3 - 5℃
• Internal refrigerator temperature is lowered to 36 ℃
from 49 ℃
• Significantly reduced cooling load on the inside
temperature
• Contracted electricity demand went from 1815kw to
1600kw
• 2-year total: Savings of US$77,000
• In 2005, the Director General was awarded for having
contributed to such a large reduction in energy costs
After
http://www.onewillinternational.com | +81 80-3010-3071

4. Commercial: Warehouse
Summary
Keisoukun Gaina was applied to reduce HVAC costs.
Installation June 2007
Applied to Roof (2940m2)
Region Nagano Prefecture, Japan
Before
After
Color White (N-95)
●Electricity savings comparison: Summer vs. Winter
Summer
150000
140000
Winter
15%
Reduction
4%
Reduction
130000
120000
19%
Reduction
110000
Results
• Summer, Ceiling temperature decreased by 20℃
• Summer/Winter Air conditioning efficiencies increased
• Year-end cost reduction of over US$14,500.
16%
Reduction
21%
Reduction
100000
90000
80000
July
Aug
Before
Nov
Dec
Jan
After
http://www.onewillinternational.com | +81 80-3010-3071

5. Commercial: Pachinko Casino
Summary
Keisoukun Gaina was applied to reduce summer heat.
Installation June 2008
Applied to Roof (2800m2)
Region Saitama Prefecture, Japan
Color White (N-95)
Results
• Both Aug. and Sept. experienced a 10% reduction
• Cost reduction of US$11,200 in the 4 months of summer
●Power consumption comparison
*1kWh was about US$0.18
After
Aug.
Sep.
Before
50,000
100,000
150,000
200,000
250,000
300,000
350,000 (kWh)
http://www.onewillinternational.com | +81 80-3010-3071

6. Commercial: 3-Story Building
Summary
Application for repainting a 3 story building
*They also replaced 1 air conditioner on the second floor.
Installation March 2009
Applied to Concrete roof; exterior; some interior
(460m2)
Before
After
Region Okinawa Prefecture, Japan
Color White (N-95)
Results
• Previous year’s bill: US$4,800; after installation:
US$2,500 - about 50% reduction
• The building was not cold in winter even without a
heater
●Electricity cost
Cost (JPY)
65,000
45,000
25,000
5,000
Jan
Feb
Mar
Apr
May
Jun
Before
Jul
Aug Sept Oct
Nov
Dec
After
http://www.onewillinternational.com | +81 80-3010-3071

7. Residential: Private Home
Summary
Application for exterior renovation.
Installation July 2011
Applied to Roof /Exterior(200m2)
Before
After
Before Keisoukun Gaina
July-Sep
Electric Bill
Comparison
Region Kochi Prefecture, Japan
Mo. Yr.
Electric Bill (USD)
Color Roof: Grey (N-50)
Mo. Yr.
Exterior: Med Grey (25-60B)
Electric Bill (USD)
$105
July `10
$148
July ’11
Aug. ’10
$147
Aug. ’11
$102
Sept. ’10
$115
Sept. ’11
$86
Total
$409
Before Keisoukun Gaina
Nov-Feb
Electric Bill
Comparison
Exterior: Ivory (25-92B)
After Keisoukun Gaina
Total
$293
After Keisoukun Gaina
Mo. Yr.
Electric Bill (USD)
Mo. Yr.
Dec. ’10
$254
Dec. ’11
$213
Jan. ’11
$139
Feb. ’10
$155
Feb. ’11
$112
Total
$622
Total
• 1-year Energy Bill reduction:
Summer 28.4%, Winter 26.3%
$207
Jan. ’10
Results
$458
Electric Bill (USD)
http://www.onewillinternational.com | +81 80-3010-3071

8. Government: Town Hall
Summary
Was applied to Yonabaru town hall building as part of the
heat shield promoting business Okinawa public facilities
Installation March 2011
Applied to Concrete roof (1030m2)
Concrete exterior (1500m2)
Before
After
Region Okinawa Prefecture, Japan
Color Roof: White (N-95)
Exterior: Gray (N-70)
●Electricity bill comparison
Results
Cost (JPY)
900,000
• 1-year results: US$14,500 reduction
• Feeling of cold floors in winter was also reduced
700,000
500,000
300,000
Apr May Jun Jul Aug Sept Oct Nov Dec Jan Feb Mar
Before
After
http://www.onewillinternational.com | +81 80-3010-3071

9. Commercial: Distribution Center
Summary
Keisoukun Gaina was applied to reduce summer heat.
Untreated roof
Installation March 2009
Applied to Galvanized roof (2200m2)
Treated roof
Region Okinawa Prefecture, Japan
Color White (N-95)
Results
Untreated
Treated roof shows much
lower change in temperature
• Under identical conditions, temperatures compared on
adjacent buildings (above photo).
• Roof underside temperature had a max. drop in
temperature of 8.9℃; average reduction of 5.3℃
Item
Roof underside temperature
Max
Untreated surface
Treated
Average
36.7℃
43.3℃
Treated surface
31.4℃
34.4℃
Temperature
difference
-5.3℃
*Average max.
temp.: 33.0℃，
Average temp.:
29.6℃
-8.9℃
http://www.onewillinternational.com | +81 80-3010-3071

10. Commercial: Warehouse
Summary
To compare untreated/treated portions of warehouse roof
Installation Sept 2008
Applied to Concrete roof (1420m2)
Region Tokyo, Japan
Color Grey (N-70)
Treated surfaces
Treated
surface
Untreated
surface
Thermal image
Results
• Surface temperature was significantly reduced
*Image: Sept. 2008; 1pm. External temp.: 33℃
Untreated surface
Concrete
Treated surface
44 - 48℃
35 - 40℃
http://www.onewillinternational.com | +81 80-3010-3071

11. Commercial: Warehouse
Summary
To compare untreated/treated portions of warehouse roof
Installation August 2009
Applied to Corrugated metal roof (307m2)
Untreated Building
Region Chiba Prefecture, Japan
Treated Building
Color White (N-95)
Results
• Surface temperature, roof underside temperature were
greatly reduced
*Image: Sept 2009; 1pm. External temp.: 33℃
Untreated surface
Treated surface
Surface
temperature
44℃
33℃
Roof underside
temperature
41.5℃
33.5℃
http://www.onewillinternational.com | +81 80-3010-3071

12. Commercial: Office/Warehouse
Summary
Coating of office/warehouse roofs
Installation June 2010
Applied to Metal plate roof (1200m2)
Region Okinawa Prefecture, Japan
Color White (N-95)
Building exterior
Treated surface
Results
Item
Sampling date
Before coating
Roof underside temperature
Weather
Average
Max
June 27
37.0℃
55.5℃
Partly cloudy
After coating
July 17
31.1℃
36.0℃
Partly cloudy
Temperature
difference
－
-0.9℃
-19.5℃
• Roof underside temperature is reduced a max. of 19.5℃;
average reduction of 5.9℃
• Quality of heat changed; was soon cool after air
conditioning system activated
－
*Before coating (June 27) Max temp.: 32.0℃，Average temp.: 29.0℃
*After coating (July 17) Max temp.: 32.2℃，Average temp.: 29.3℃
http://www.onewillinternational.com | +81 80-3010-3071

13. Industrial: Factory Roof
Summary
Surface temperature comparison for factory roof.
Installation September 2010
Applied to Corrugated metal roof (2838m2)
Region Yamanashi Prefecture, Japan
Color White (N-95)
Building exterior
Treated Surfaces
Results
Thermal image
• Surface temperature was significantly reduced
Untreated surface
Treated
surface
Untreated
surface
*Image: Sept 2010; 1pm
External temp.: 33℃
Corrugated metal
roof
Treated surface
57 - 62℃
35 - 40℃
http://www.onewillinternational.com | +81 80-3010-3071

14. Industrial: MOL Car Carrier
Goal for Using Keisoukun Gaina
Temperature reduction for car carrier roof.
Applied to Deck
Region Yamanashi Prefecture, Japan
Color White (N-95)
Results
• Gaina was formally employed in covering the deck of a
large car carrier.
• Lower deck temperatures decreased from 65℃ to 38℃
and the internal work efficiency had been greatly
improved.
• Normally, workers are exposed to large amounts of UV.
In one week, the thermal environment changed
drastically, and after a careful examination of the
product it was decided to make it a standard
specification.
(Comments from MOL supervisor)
http://www.onewillinternational.com | +81 80-3010-3071

15. Museum: Todaiji Temple Museum
Goal for Using Keisoukun Gaina
Surface temperature comparison for factory roof.
Applied to Interior
Region Yamanashi Prefecture, Japan
Color White (N-95)
Results
• Conserving national treasures requires a large amount of
energy for HVAC. This design case sought to reduce
energy consumption by increasing the amount of
thermal insulation.
• As a material that avoids condensation, Gaina has been
carefully evaluated in-house for several years, and we
have a high regard for its insulation properties, its ability
to resist dirt, and its design characteristics.
(Comments from chief designer)
http://www.onewillinternational.com | +81 80-3010-3071

16. Industrial: Kansai Airport Shuttle
Goal for Using Keisoukun Gaina
Surface temperature comparison for factory roof.
Applied to Roof
Region Yamanashi Prefecture, Japan
Results
• The roof of the Kansai Airport Wing Shuttle (AGT) was
treated with Gaina.
• With the area under the roof having decreased from 57℃
to 47℃, Gaina was chosen as a new technology to
enhance air-conditioning efficiency and to enable energy
savings.
http://www.onewillinternational.com | +81 80-3010-3071

17. Government: Nerima Ward Office
Goal for Using Keisoukun Gaina
Surface temperature comparison for factory roof.
Applied to Interior
Region Yamanashi Prefecture, Japan
Color White (N-95)
Results
• Gaina was applied to 7 of 11 smoking rooms at Tokyo’s
Nerima Ward Office.
• “The smoking room environment really improved!” and
other positive comments were received from ward
residents. In particular, the 20th floor of the main
building, where an observation lobby and restaurant is
located, has become renowned as a place where all
visitors can now relax and enjoy the scenery.
http://www.onewillinternational.com | +81 80-3010-3071

18. Industrial: Restaurant HVAC Unit
Goal for Using Keisoukun Gaina
Surface temperature comparison for factory roof.
Applied to Corrugated metal roof (2838m2)
Region Yamanashi Prefecture, Japan
Color White (N-95)
Results
• Savings after treatment (per day): 974kwh → 898kwh
• Monthly savings: US$460
http://www.onewillinternational.com | +81 80-3010-3071

19. Industrial: Auto Manufacturing Plant
Goal for Using Keisoukun Gaina
Surface temperature comparison for factory roof.
Applied to Roof
Region Yamanashi Prefecture, Japan
Color White (N-95)
Before
After treatment with Gaina
Results
• Surface temperature was significantly reduced
(54.8℃ → 44.6℃)
http://www.onewillinternational.com | +81 80-3010-3071

20. Commercial: Airport Boarding Bridge
Goal for Using Keisoukun Gaina
Surface temperature comparison for factory roof.
Applied to Passenger Boarding Bridge
Region Tokyo, Japan
Color White (N-95)
Results
• Surface temperature was significantly reduced
• No. 10 support (JAL) PBB also uses Gaina
http://www.onewillinternational.com | +81 80-3010-3071

21. Residential: “Home-for-All”
Goal for Using Keisoukun Gaina
Surface temperature comparison for factory roof.
Applied to Interior/Exterior
Region Rikuzentakada, Japan
Color White (N-95)
Results
• At the 13th Venice Biennale International Architecture,
Gaina was used in the “Home for All” design, which won
a Golden Lion.
• Architects: Mr. Toyo Ito, Ms. Kumiko Inui,
Mr. Sou Fujimoto, Mr. Akihisa Hirata
http://www.onewillinternational.com | +81 80-3010-3071

22. Contact
Call, email, or send us a letter –
We would love to discuss your needs and how we can help.
One Will Co. Ltd. (Japan)
•Address: Yamashita-cho, Naka-ku 75 Banchi
Ogino Bldg. 6F
Yokohama, 231-0023 Japan
•TEL: +81-45-664-5211
•Email: info@onewill.co.jp
At a glance
One Will Corporation, Limited
Founded:
July 4, 1983
Employees:
32
Capital:
JPY49 mil
Sales turnover:
USD16 mil (as of 2012)
Main banks:
Tokyo Mitsubishi UFJ
Mizuho Bank
 Voted 4 years running as one of the most innovative
companies in Kanagawa Prefecture, Japan.
One Will International
•Address: Yamashita-cho, Naka-ku 75 Banchi
Ogino Bldg. 6F
Yokohama, 231-0023 Japan
•TEL: +81 80-3010-3071
•Skype: Onewill.co.ltd
•Email: brianarmstrong@onewillinternational.com
 Recognized for its advancements in the field of
energy conservation and air restoration.
Patent Portfolio
•One Will Keisoukun™ Wallpaper
#3358026
10/11/2002
#4228117
12/12/2008
#4228268
12/12/2008
• One Will Keisoukun™ Plaster
#3460077
8/15/2003
#544142
9/2/2009
http://www.onewillinternational.com | +81 80-3010-3071