Loop Rocks bridges supply and demand by enabling construction sites to utilise leftover materials via an app, saving time, money, and resources.

One construction site’s waste could be another’s treasure. That is the idea behind Loop Rocks – a free service that enables construction sites to offer unused building materials such as gravel and soil via an app. Built on circular concepts, Loop Rocks promotes effective and sustainable management of resources by identifying nearby excess supply, helping to reduce the demand for new materials elsewhere – saving money and reducing CO2 emissions related to production and transportation in the construction industry.

Loop Rocks has more than 8,000 users – private homeowners as well as established companies – who upload materials available or in demand. Via a matching function, the app connects handymen and construction contractors to engage in direct transactions, selling everything from leftover aggregates from a backyard pool installation to soil from large excavations. Currently, around 300,000 tonnes of masses are available, while the demand is double, creating a solid foundation for reselling materials.

The company also requires environmental sampling of materials before they can be sold, in order to prevent pollution and address safety concerns. Loop Rocks has several environmental consultant partners available to provide this service.

Why you should care

Construction and demolition waste accounts for approximately 25-30% of all waste generated in the EU. Reusing materials saves time, money, resources, and CO2 emissions. Via Loop Rocks online calculator, consumers and suppliers can estimate potential savings. For example, using 500 tonnes of crushed stones from a location 100km away will save approximately $20,000 and reduce CO2 emissions by around 6000kg.

How the Global Goals are addressed

Responsible consumption and production

By enabling construction sites to reuse leftover materials, Loop Rocks builds a foundation for efficient use of resources. So far, the company estimates the app has helped loop more than 2 million tonnes of material.

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