Living Building Challenge: Materials | Building With Mass Timber and Rammed Earth

What goes into a building matters.

The Materials Petal of the Living Building Challenge requires rigorous evaluation of every construction material to eliminate harmful chemicals and prioritize responsible sourcing.

At the Theodore Roosevelt Presidential Library, natural materials such as mass timber and rammed earth connect the building to the surrounding landscape while reducing environmental impact.

Every component must pass strict health standards, avoiding thousands of harmful substances identified by the Living Building Challenge Red List.

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