Definition. For the model dwelling, flax board is the best roof insulation from a sustainability and cost perspective: the lowest building-performance score of the roof materials (€0.012/m² per year), 100% reusable and, at 3.0 kg CO₂-eq/m², among the lowest emissions.
Straw panels are cheaper but too thick for the model dwelling, which makes flax board the best roof choice; EPS scores worst. New Economy’s circular insulation study for Amsterdam reports this.
- Flax board is the best roof insulation for sustainability and cost