The built environment produces more than one third of global waste. Yet only around one percent of building materials are reused.

In this episode, Tina Snedker Kristensen, founder of BuildDirection and former Head of Sustainability & Communications at Troldtekt A/S, examines why circularity in construction remains structurally constrained.

Drawing on more than two decades inside the building materials industry, Tina explains how certification frameworks such as Cradle to Cradle shifted sustainability from communication to operational discipline. “It’s not just a stamp that you get,” she says. “You have to work continuously and improve on all five criteria.”

The conversation moves from theory to site-level reality. Dismantling decades-old materials is labour intensive. Technical performance must be reverified. Ownership is often unclear. Virgin materials remain cheaper because industrial systems are optimised for linear production.

Denmark’s tightening building regulations are beginning to shift demand. Reused materials can now count as zero CO₂ in life-cycle assessments. But legacy buildings lack documentation. “If I had a magic wand,” Tina says, “I would hope that it could sort of scan a building and define which kind of materials are there.”

This episode examines where circular ambition meets commercial constraint, and what must change for reuse to move beyond one percent.

Listen to understand the operational reality behind the circular construction narrative.

#CircularEconomy #SustainableConstruction #BuiltEnvironment #ESGStrategy #CradleToCradle