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  1. Home
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  3. Building Materials
  4. Roofing materials
  5. Wall and rooftop greenery
  6. Rooftop greening system - Rooftop greening without the need for irrigation - Evergreen Kiri grass bag method

Rooftop greening system - Rooftop greening without the need for irrigation - Evergreen Kiri grass bag method

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last updated:Jan 18, 2026

緑化計画研究所
緑化計画研究所
  • Official site

Low-maintenance rooftop greening system: Free from worries about weed overgrowth, a reliable rooftop greening system.

Evergreen Kiri-sou is a hybrid plant that is ideal for environmental greening. Evergreen Kiri-sou is resistant to drought and extreme temperatures, requires no watering (only rainwater), maintains its greenery year-round, and is a low-maintenance plant. **Features of the Evergreen Kiri-sou Bag Method:** - Soil erosion prevention - Weed control - Easy greening - Low management type - No watering required The Evergreen Kiri-sou Bag Method is a new greening approach that achieves "soil erosion prevention," "weed control," and "easy greening" by placing specialized soil for Evergreen Kiri-sou in a bag. **Greening Applications:** - Rooftop greening - Folded plate roof greening - Wall greening - Slope greening - Erosion control dam greening - Roadside greening - Concrete slope greening - Environmental greening - Weed control under solar panels, etc. Recently, intense rains like guerrilla downpours have caused issues such as soil erosion from rooftop greening and scattering due to wind. Additionally, the decline of plants and the proliferation of weeds have become significant problems in rooftop greening. The "Evergreen Kiri-sou Bag Method" is a rooftop greening system that solves these issues without failure. This method is a new greening approach that overcomes the problems of previous greening methods. Installation is easy, allowing for simple greening in various locations such as rooftops, folded plate roofs, and wall greening.

    Wall and rooftop greeneryLandscaping and plantingLandscaping materials
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Rooftop greening system - Rooftop greening without the need for irrigation - Evergreen Kiri grass bag method

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kirinsou-top13A.gif
  • Related Link - https://kirinsou-cover.com/

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This is a method for evergreen sedum using a zipper-type planting bag (FTM bag). It is a triple intellectual property product consisting of a bag method (Patent No. 4911418 + Registered Trademark No. 6125712) and a variety registration (Variety Registration No. 15866). The triple intellectual property of the evergreen sedum bag method (patent, trademark, variety registration) leads to successful rooftop greening. 1. Prevents the intrusion of weeds. 2. Prevents soil runoff. 3. Easy installation with a zipper. The standard size of the bag method is 50 cm square, with a wet weight of 13 kg per piece. There is also a rectangular type measuring 15 cm x 100 cm available. Additionally, grommets can be added, and custom sizes can be ordered. The rectangular type is used for wall greening and folded roof greening. The bag is made of root-proof material, which stops the intrusion of weeds and prevents soil scattering and runoff. The bag allows evergreen sedum to provide moisture to the soil while simultaneously preventing soil from drying out. The site will receive bags filled with soil and seedlings of evergreen sedum, so you simply open the zipper of the bag, insert the seedlings, and close the zipper. It is a simple greening system that completes the greening just by arranging the bags with plants inside.

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Applications/Examples of results

【Evergreen Giraffe Grass Bag Method Achievements】 〇 Over 500 private facilities 〇 Over 50 public facilities Many others 【Greening Applications】 〇 Rooftop greening, folded plate roof greening, wall greening, slope greening, erosion control dam greening, road greening, concrete slope greening, environmental greening, weed control under solar panels, etc. 【Applications】 〇 Government and public agency facilities 〇 Factories, offices, commercial facilities 〇 Apartments, residential buildings 〇 Civil engineering structures, erosion control dams, slopes 〇 Ground cover 〇 Weed control

Detailed information

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catalog(4)

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Rooftop Greening Revolution - Soil Erosion and Dispersion Experiment - Evergreen Kiri Grass Bag Method

Rooftop Greening Revolution - Soil Erosion and Dispersion Experiment - Evergreen Kiri Grass Bag Method

TECHNICAL
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Rooftop Greening Revolution A - A Fail-Proof Rooftop Greening System - Evergreen Kiri Grass Bag Method

Rooftop Greening Revolution A - A Fail-Proof Rooftop Greening System - Evergreen Kiri Grass Bag Method

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Rooftop Greening Revolution B - A Rooftop Greening System That Won't Fail - Evergreen Kiri Grass Bag Method

Rooftop Greening Revolution B - A Rooftop Greening System That Won't Fail - Evergreen Kiri Grass Bag Method

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Fail-proof Rooftop Greening System 'Evergreen Kiri Grass Bag Method' (Overview Version)

Fail-proof Rooftop Greening System 'Evergreen Kiri Grass Bag Method' (Overview Version)

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CAD data(3)

Model number overview File
Standard Diagram PDF for Evergreen Giraffe Grass Bag Method
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Evergreen Giraffe Grass Bag Method Standard Diagram DWG
  • 2D dwg ( 198KB)
Evergreen Giraffe Grass Bag Method Standard Diagram DXF
  • 2D dxf ( 976KB)

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緑化計画研究所

緑化計画研究所

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In manufacturing, there are people, and in projects, there is drama. The "passion" of three individuals transcends the boundaries of the company, leading to "co-creation" and "hope." In April 2007, at an exhibition, a project team was born. They wanted to create new solutions originating from the field to solve customers' problems. Three professionals who shared such passionate thoughts met, and the Evergreen Kiri-Sou Promotion Association was established. Professionals in plants, architecture, civil engineering, and facilities breathe new life into the city. Moments of inspiration are continuous. The opportunities to experience moments where the heartbeat never stops are becoming fewer. Why is that? Perhaps it is because of the increase in fakes and deceptions. We aim to remain professionals involved in plants, architecture, civil engineering, and facilities, and we operate the Evergreen Kiri-Sou Promotion Association. The professionals have developed new greening methods and greening systems. That is the Evergreen Kiri-Sou bag method.

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