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ETFE Air cushion roof for the Hortus Botanicus Amsterdam climate chamber
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+31 (0)316-250830
Buitink TechnologyBuitink Technology delivered an innovative ETFE air cushion roof for the iconic Climate greenhouse of the Hortus Botanicus in Amsterdam. With 117 unique air cushions, this transparent roof is a technical and aesthetic tour de force. The project also contributes to a completely gas-free greenhouse. Discover all the details about this sustainable and special project!
Project details
| Client: | Hortus Botanicus Amsterdam |
| Size: |
approx. 1,500 m² |
| Number of cushions: |
117 (including 7 roof hatches) |
| Material: |
ETFE foil, 3-layer |
| Architect: | ZJA |
| Main contractor: | AKOR Pijnacker |
| Structural engineer: | ABT |
| ETFE cushion roof: | Buitink Technology |
| Completion: | 2025 |
Video ETFE air cushion roof Hortus Botanicus Amsterdam
About the ETFE air cushion roof
Buitink Technology realised the transparent air cushion roof above the Klimatenkas in the Hortus Botanicus Amsterdam. The roof consists of 117 ETFE cushions with a total surface area of about 1,500 m². Almost all the cushions have a unique shape (triangles, rectangles, bevelled rectangles) and are part of a three-dimensional curved and convex roof surface.
| U-value (horizontal roof) | 2.29 W/m²K |
| g-value | 0,78 |
| LTA value | 0,75 |
| Direct solar transmission | 0,76 |
Sustainability & Innovation
Both the ETFE foil and its application as an air cushion roof are a sustainable choice. Thanks to high insulation values and light transmission, the roof helps save energy. Moreover, it contributes to a gas-free future for the Hortus. Via a 600-metre-long connection, the H'ART Museum supplies residual heat to the greenhouse, making the Klimatenkas the first gas-free public greenhouse in the Netherlands.
Information on the durability of ETFE film:
Technology behind the project
Besides the ETFE cushions, Buitink Technology also took care of the air installation and stainless steel piping. All this ensures an optimally functioning air cushion roof and perfect insulation performance.
ETFE skylights
Automated windows, also made of ETFE air cushions, are integrated into the air cushion roof. These windows can be opened and closed for natural ventilation and climate control without compromising the light transmission and insulating properties of the roof.
Questions?
Do you have questions or want more information? Please feel free to contact us. Call us at +31 (0)316-250830. But even easier: fill out the contact form below directly. We will contact you as soon as possible!
