Isometric has launched the public consultation period on its draft module for biochar storage in construction materials, looking to gather feedback on this proposal by Jul 30, 2025.
In it, Isometric outlines procedures and requirements around storing biochar within construction materials such as concrete and asphalt.
Biochar is created by putting organic waste material through pyrolysis—a process in which the biomass is heated at or above 500° in the absence of oxygen.
This process turns the biomass into a carbon-rich product called biochar, which durably locks in CO2 that would otherwise reach the atmosphere through the decomposition of the organic material.
Biochar stops or slows down the decomposition of biomass, offering a solution to CO2 emissions and a product with physical and chemical properties suitable for permanent storage through a number of different approaches.
One of the potential ways to store biochar is in construction materials, where the low-oxygen environment preserves the CO2-rich material, increasing its durability.
Isometric’s Biochar Storage in Built Material Module focuses specifically on storage in materials like asphalt and concrete.
The integration of biochar into these products offers a substitute for other, more carbon-intensive components, and the switch to biochar can be seamlessly introduced into existing industrial processes and infrastructure.
Isometric’s draft module centers around rigorous, science-backed monitoring, reporting, and verification.
Relevant: ReGenEarth Promotes Biochar Adoption With New $1.3M Green Bond Program
It includes requirements on biochar characterization, systemic monitoring, durability modeling, and a reversal risk analysis that covers a timeframe of 1,000 years, addressing the potential biochar degradation during use, demolition, or recycling of the construction materials.
Under this Isometric module, the carbon credits issued from biochar storage in built materials will have a 1000-year durability.
The module was put together by Isometric’s in-house team of scientists, who consulted with reviewers from Isometric’s independent Science Network of over 300 scientific experts.
During the module’s development, Isometric also relied on feedback from suppliers AlterBiota and ecoLocked, who are using this biochar storage approach.
Read more: Exomad Green Starts Work On The World’s Largest Biochar Facility
