Case Studies

Green Renovation: Before & After

Japan
Country:
Japan
Category:
Construction
Tag:
Large scale, Low Cost, Ceramics
Green Renovation: Before & After

Hotel History

EM Wellness Resort COSTA VISTA Okinawa Hotel & Spa
Development of EM Wellness Resort:
In 1972                       The Okinawa Hilton Hotel was established.
In 1972, May 15           Okinawa’s independence from U.S. occupation.
In 1985                       The Sheraton Okinawa Hotel was established.
In 1990                       The Hotel Star Hill was extended and reconstructed.
In 1991                       The construction of the hotel was canceled.
In 2002                       EMRO bought the Hotel Star Hill.
In 2004                       EMRO commenced the construction of the hotel.
In 2005, September      The Hotel Costa Vista Okinawa was established.
In 2005, November       EMRO started the construction of the EM Spa (CORAZON) building.
In 2006, April               The grand opening of the EM Spa CORAZON.

EM Wellness Resort Costa Vista Okinawa Hotel & Spa is a place to relax mind and body health with the best use of EM technology
Since the establishment of the Okinawa Hilton Hotel in 1972, 42 years have passed until now. In 1991, due to a cessation of extension and construction for the Hotel Star Hill, this building was abandoned for 13 years. Based on common sense, old buildings are demolished. On the other hand, according to a theme of regeneration for historical and old buildings, this building has been remodeled with a high-quality structure which cares for the environment through the use of EM technology on almost all of the construction, and for human's health like no one can imagine.
Using EM technology for construction, buildings are expected to have some benefits like "improved endurance", "minimizing the bad effects of various chemical materials", "comfort of living spaces" and "improvement of environmental hazards". In addition, the whole building is resurged by periodic maintenance.
 
General Description:
Framework: Reinforced concrete structure (5th floor above ground and 2nd floor in the basement)
Ground-floor area: 43,618m²
Building area: 6,440m²
Architectural area: 20,611m²
Facility:
Total guest room: 214 rooms
Parking area: 180 cars
Japanese cuisine, all day dining restaurant, café, bar, conference rooms, banquet, souvenir shops and fitness room.
 

EM application for construction


1. Application to grounds
2. Application to reinforcing bars and formworks
3. Application to concrete and mortar
4. Application to blocks
5. Application to asphalt
6. Application to EM paint
7. Application to waterproof treatment
8. Application to EM wallpapers
9. Application to the EM carpet and adhesion bond
1.Application to grounds
1.Application to grounds
2.Application to reinforcing bars and forms
2.Application to reinforcing bars and forms
3.Application to concrete and mortar
3.Application to concrete and mortar
4.Application to blocks
4.Application to blocks
5.Application to aphalt
5.Application to aphalt
6.Application to EM paint
6.Application to EM paint

Before and After the Renovation

Hotel Appearance: Before
Hotel Appearance: Before
Hotel Appearance: After
Hotel Appearance: After
Entrance: Before
Entrance: Before
Entrance: After
Entrance: After
A carry-in entrance: Before
A carry-in entrance: Before
A carry-in entrance: After
A carry-in entrance: After
Entrance Lobby: Before
Entrance Lobby: Before
Entrance Lobby: After
Entrance Lobby: After
Countryard of the Japanese Restaurant: Before
Countryard of the Japanese Restaurant: Before
Countryard of the Japanese Restaurant: After
Countryard of the Japanese Restaurant: After
Bar lounge on the first basement level: Before
Bar lounge on the first basement level: Before
Bar lounge on the first basement level: After
Bar lounge on the first basement level: After
Hallway: Before
Hallway: Before
Hallway: After
Hallway: After
Guest room: Before
Guest room: Before
Guest room: After
Guest room: After

EM Spa CORAZON Okinawa Before and Afer

General Description:
Framework: Reinforced concrete structure (3rd floor above ground)
Building area: 993.83m2
Architectural area: 2,076.48m2
Facility:        
1st floor: Information, Bedrock bath, Treatment room and courtyard.
2nd floor: Dressing room, Relaxation room and Main bathhouse (Dry sauna, Mist sauna,
half body bath area, Air bubble bath, silky bath, Scrubbing room and powder room.).
3rd floor: Relaxation room, Café and Rooftop gardening
 
EM Application to Construction
  • Mortar, concrete, EM block and EM tile
  • Soil treatment
  • Reinforcing bar and iron frame treatment
  • Paint (Exterior and inner packaging)
April 2006 Spa CORAZON opened
April 2006 Spa CORAZON opened

EM Diatomite Showroom

Development: Two rooms made with EM diatomite materials from the OKUTA Co., Ltd. in July 2010
Objective:
  • Provide a show room
  • Provide a different option to stay and experience the effect of EM
  • Propose the EM Lifestyle to guests concerned on health problems
Characteristics:
  • EM diatomite is applied on the roof
  • EM diatomite flat is applied on walls
  • Natural materials used on flooring
  • EM diatomite flat is also applied on furniture and bed boards
Finishing touch with EM Diatomite flat
Finishing touch with EM Diatomite flat
EM Diatomite flat applied on bed board
EM Diatomite flat applied on bed board

EM Waste water treatment

The water discharged from the Spa building is treated and accumulated into the water storage tank (50m3). Next, it is processed inside the water treatment equipment (processing ability:  max. 70t) and delivered to the water receiving tank (50m3), accumulated till sent to the Spa’s water receiving tank.
EM treated water is reused for flushing toilets at the first floor and basement of the hotel, as well as flushing toilets at the Spa.
However, water for
hand wash and bidet is tap water (not reused water).
Moreover, there is a treatment system for reusing rainwater.   
Aerial photo
Aerial photo
Photo Collection (After Renovation)
Hotel front view
Hotel front view
Casa Verde Restaurant
Casa Verde Restaurant
Hotel bar
Hotel bar

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