10/23/2026
“Living Seams” by Htet Hlaing (MArch I ’26), winner of the 2026 Peter Rice Prize, reimagines architectural construction through living mycelium, proposing a compostable building system capable of growth, adaptation, and material transformation. The project was developed as an individual thesis project at the Harvard Graduate School of Design, advised by Martin Bechthold and Daniel Tish.
Hlaing introduces mycelium as a material strategy for addressing the end-of-life limitations of conventional SIP construction while expanding its new architectural possibilities. The thesis rethinks SIP construction as a time-based material system composed of pregrown mycelium-wood bilayers that are biowelded on site into a compostable assembly.
Buildings are not permanent, yet we continue to construct them as though they are. Contemporary wall assemblies such as light wood framing, CLT, and conventional SIPs rely on tightly bonded layers of membranes, insulation, and petrochemical adhesives to achieve high technical performance. Yet these same assemblies are difficult to repair, nearly impossible to disassemble, and ultimately destined for landfill, embedding disposal into the logic of contemporary construction.
Today’s construction paradigm defines strength as resistance to change, the capacity of a system to remain fixed, stable, and unchanged under load. In biology, strength operates differently. Biological strength is not the refusal of change, but the ability to absorb variation and without failure, to deform, adapt, heal, and remain resilient through transformation. This thesis begins from that distinction, proposing architecture as a constructed ecology rather than a static assembly of fixed layers destined for landfill.
By treating mycelium as both binder and insulation, the thesis proposes a circular building system that reduces waste, labor, and embodied carbon, while rendering growth legible as architectural form over time.