Project general details
WORLD GREEN INFRASTRUCTURE AWARD
Greening Project for Taoyuan Children's Art Center
Nominator
Investor
Supplier
Architect
Taiwan Green Roof and Green Wall Association
Taoyuan City Government
Riken Yamamoto Design Studio Co., Ltd. (Japan)
Greenpros Co.,LTD
Location (City)
GPS
Country
Region
Year of nomination
Taoyuan City
data
Taiwan, Province of China
Asia
2024
Project specifications
The Taoyuan Museum of Art Main Building and Children's Art Center, designed by Riken Yamamoto Design Studio and Taiwan's Joe Shih Architects, focus on "amusement-oriented exhibition halls and landscape-oriented architecture." A key feature is the extensive green roofs: the Children's Art Center has over 3,000 square meters, completed in January 2024, while the main museum's green roof will cover more than 10,000 square meters and is still under construction. Riken Yamamoto considered local landscapes and communities in the design, integrating adjacent Qingtang Garden Park and the nearby Swiss community into the museum experience. His vision emphasizes a design that connects buildings with the community. Yamamoto aims for the Taoyuan Museum of Art to be a landmark that instills pride in local citizens.
Object type
Roof accessibility
Roof slope
Year of completion
Project in operation?
Commercial buildings
Public
20-45 degree
2024
YES
Green roof area (m2)
3000
Green roof specification
Method of establishment of vegetation
There is a micro-sprinkler irrigation system on the green roof, with automatic watering controlled by a timer and a rain pause device. In the early stages of planting, in addition to watering, the turf needs to be trampled manually so that the roots of the turf can stick to the soil to avoid gaps. Pay attention to whether the soil moisture is sufficient. When the plant roots grow out, the green roof system can be stable. 5 kinds of plants are mixed and planted. After 3 months, the plants are mixed more evenly, and exotic plants begin to appear on the roof. Some invasive species that are too strong will be removed. Most of them adopt extensive green roof management. Maintenance frequency is now once a month.
Vegetation
We first made a mockup to test 20 plants. Based on the performance of the plants in different seasons and periods of water shortage, we selected 5 suitable plants for mixed planting on the roof, including Zoysia matrella, Bermudagrass, Creeping Dichondra, Asiatic Pennywort, Mockstrawberry.
Vegetation layer
The pitched roof has a slope of 30 degrees, and the soil covering thickness of the ZinCo green roof system is about 10 centimeters. Use ZinCo Georaster drainage panels as soil-holding frames to prevent soil movement. The special medium used in this case has good water retention, and the two layers of protection mat also have a water retention function, allowing water to be retained on the green roof for use by plants. The pitched roof drains water very quickly, so retaining water is crucial. The projet medium is mixed from various materials, including Polygreen Soil and environmentally friendly pumice. The raw material for Polygreen Soil is recycled waste cloth, which is crushed and granulated to form cotton particles. It is lightweight and offers good water retention. Environmentally friendly pumice is made from recycled glass that has been broken down and foamed under high temperature and pressure. It is lightweight, water-retaining, and has good fertilizer-preserving effects.
Retention layer
ZinCo's pitched roof system employs Georaster drainage panels, which feature diamond-shaped structures with excellent support and soil-fixing capabilities. A shear barrier is installed at every cell distance on the pitched roof to support the Georaster drainage panels.
Filtration layer
There is no filter layer on the sloped roof. Only non-woven filter blankets are placed inside the openings of the shear barrier next to the ditch to prevent soil from flowing into it.
Drainage layer
When the roof slope is 30 degrees, the surface runoff of the soil will be very rapid, and the gravitational water contained in the soil will also flow downward quickly. The architect designed a water intercepting ditch at the bottom of the pitched roof to collect drainage and channel it into the rainwater recovery tank in the basement, allowing for water reuse. In this project, there is no additional drainage layer. The metal edge plates next to the ditch have openings to allow excess water in the soil to drain into the ditch.
Separate layer
Use Root Barrier Membrane and two layers of Protection Mat to block plant roots from reaching the waterproof protective layer.
Protective layer
There are EPS insulation panels and concrete protective layers above the waterproof layer. A green roof system is constructed on top of the concrete protective layer, with one layer of Root Barrier Membrane and two layers of Protection Mat laid in sequence.
Root layer
This green roof uses an asphalt waterproof blanket. A layer of asphalt waterproofing primer is applied to the building structure, and then the asphalt waterproofing blanket is hot-melted onto the roof. The asphalt waterproof blanket is covered with EPS board and a 10 cm layer of concrete as a protective measure.
Category:
GREEN ROOFS
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