Omtre x EcoDo - A DRASTIC pre-demo
Published:
The portable HC-toilet of the future
The disabled toilet is the result of collaboration between Omtre, EcoDo and partial funding through the Horizon Europe project DRASTIC. As well as providing a great user experience, the construction demonstrates how the design for assembly and disassembly allows for efficient transfer, assembly, disassembly and the repetition of this over multiple use cycles. Read on to see how we achieved this.
Recycled materials - sent to EcoDo
DRASTIC is about designing sustainable buildings with reduced embodied energy and carbon emissions, high lifecycle performance and reduced lifecycle costs. The image is from Omtres warehouse in Hønefoss and depicts the materials used as structural elements in the construction. By using reclaimed wood, we reduce energy consumption compared to extracting new timber from the forest and end up with a building with reduced embodied energy.
Flat-pack
In order to efficiently transport multiple toilets to the same or multiple locations in one trip, flat-packing the structure became essential. This also allows the use of highly accessible and inexpensive transportation solutions, such as this van. The more you can fit on a trip, the fewer trips you need to make. This has a direct impact on CO2 emissions, employee strain and time-related costs.
Work site safety
Worker safety comes before everything else. Heavy lifting is a risk that can lead to injuries and overloading. The HC toilet consists of several parts that are carried out of the vehicle and assembled on site. It is therefore very important that this is a safe process for the workers. As a safety measure, no single element to be lifted by one person weighs more than 25 kg and no element intended to be lifted by two people weighs more than 50 kg. These are important points to promote social sustainability.
Assembly
On-site
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The base
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The walls
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The roof
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Natural light
Dropp-down walls
The “loose” wall is dropped down and rests on strips attached to the rigid walls. As mentioned, these are locked in place by the ceiling. When fewer walls need to be bolted down, time is saved. The installation of the HC-toilet took 38 minutes.
Disassembly - every second counts
The phrase “time is money” fits in well here. The construction is designed for quick assembly and disassembly. From arriving on site until everything is packed and ready, dismantling takes 22 minutes.
Design for multi-use-cycles
There is no glue between the wooden elements used in the construction. Floors, walls, doors and ceilings are in this case screwed together with reversible screws and bolts. This facilitates future repair and replacement of parts when the time comes. When the building can be taken apart into individual components, it is easier to use these components in new constructions. This allows the materials to go through several cycles of use and be kept in use. After assembly and disassembly at the wedding, the HC toilet has been rigged up and down at Sandvika Byfest and is already on its way to its next use cycle.
EcoDo
EcoDo supplies portable toilets for various needs, such as parks, festivals, weddings and construction sites. With solid expertise in waste management and sustainable construction, they offer environmentally friendly toilet solutions that are both practical and comfortable to use.
DRASTIC
DRASTIC is our first Horizon Europe project, where Omtre will demonstrate one of its circular solutions: the supply and prefabrication of reclaimed barn wood elements for structural use in a temporary commercial construction.
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