US-based company developed a modified wood it claims is stronger than steel
9 months ago
- #construction
- #sustainability
- #innovation
- InventWood developed 'Superwood', a modified wood stronger than steel, capable of stopping bullets in lab tests.
- Superwood is created by chemically treating timber to remove lignin and compressing it, reducing volume by 80% and increasing strength.
- The product retains wood's attractive grain and can be made from poplar trees or bamboo, which grows quickly and helps in carbon sequestration.
- Engineered wood products like glulam and cross-laminated timber (CLT) are already used in construction for their strength and moisture resistance.
- Using CLT instead of concrete can reduce carbon emissions by nearly 10% in some buildings.
- Superwood is not meant to compete with existing engineered woods but can serve as a durable, aesthetically pleasing finishing layer or external cladding.
- Other companies are developing similar products, like Pollmeier's BauBuche from beech and 3RT's veneer sheets from low-value trees.
- Wood products are gaining popularity in construction for their carbon storage benefits, though challenges like insurance and mortgage rates remain.
- Superwood has shown fire resistance and durability against wood-eating insects, though it requires special tools for cutting.
- Recycling old timber is still important, with waste wood being repurposed into new products like CLT-style panels.