Project Credits & Specs:
- Architecture Firm: VTN Architects (Vo Trong Nghia Architects)
- Principal Architects: Vo Trong Nghia, Takashi Niwa, Masaaki Iwamoto
- Architects: Tran Thi Hang, Kuniko Onishi
- Photographs: Hiroyuki Oki, Gremsy, Quang Tran
- Location: Dongnai, Vietnam
- Site Area: 10,650 m2
- GFA: 3,800m2 , 1F; 2615.9m2 , 2F; 1113.6m2
- Year: 2013
- Green Building Consultant: Melissa Merryweather
- CFD Analysis: Environment Simulation Inc.
- Contractor: Wind and Water House JSC
- Client: Pou Chen Vietnam
Vietnam historically an agricultural country is facing changes as it moves to a manufacturing-based economy, taking its toll on the environment. Increased droughts, floods, and salinization jeopardize food supplies, while numerous motorbikes cause daily congestion and air pollution in the cities. Rapid urbanization deprives Vietnamese children of green lands and playgrounds, thus their relationship with nature.
Farming Kindergarten is a challenge to counter these issues. Located next to a big shoe factory, designed for 500 children of the factory’s workers, the building is conceived as a continuous green roof, providing children with food and agriculture experience and an extensive playground to the sky
The green roof is a triple-ring shape drawn with a single stroke, encircling three courtyards inside as safe playgrounds. Recently, an experimental vegetable garden was realized on its top. Five different vegetables are planted in a 200m2 garden for agriculture education.
All functions are accommodated under this roof. As the roof lowers to the courtyard it provides access to the upper level and vegetable gardens on top the place where children learn the importance of agriculture and recover their connection to nature.
Environmental strategies
The building is made of a continuous narrow strip with two side operable windows which maximize the cross ventilation and natural lighting. Additionally, architectural and mechanical energy-saving methods are comprehensively applied including but not limited to: green roof as insulation, green facade as shading, and solar water heating. These devices are designed visibly and play an essential role in children’s sustainable education. Factory wastewater is recycled to irrigate greenery and flush toilets.
As a result, the kindergarten is operated without air conditioners in the classrooms despite being located in a harsh tropical climate. According to the post-occupancy record issued 10 months after completion, the building saves 25% of energy and 40% of freshwater compared to baseline building performance, reducing its running cost greatly.
Cost-efficiency
The building is designed for low-income factory workers’ children, therefore construction budget is quite limited. Therefore, the combination of local materials (ex. bricks, tiles) and low-tech construction methods are applied, which also helps minimize the environmental impact as well as promote local industry. Thanks to the simple rigid frame with economical materials, the construction cost per one square meter is only 500 USD including finishes and equipment, which is competitively cheap even within the Vietnamese market.
The project description is provided by the architects.
