Enabling Medium-Scale Timber Buildings in Indonesia under SNI: A Regulatory and Technical Position Paper

DOI

10.2991/978-94-6463-944-5_7How to use a DOI?

Keywords

Regulatory Readiness Index (RRI); Minimum Evidence Package (MEP); medium‑scale timber; SNI; PBG/SIMBG; Performance‑Based Fire Safety Verification (FRVM, MLIT Notification No. 1433, 2000); permitting; third‑party certification

Abstract

This paper proposes a Regulatory Readiness Index (RRI) and a Minimum Evidence Package (MEP) to assess the implementability of medium‑scale timber buildings (3–5 stories; 300–3,000 m2) under Indonesia’s SNI/PBG regime and Japan’s Building Standards Law, including the Performance‑Based Fire Safety Verification under MLIT Notification No. 1433 (2000; hereafter, FRVM). The RRI framework quantifies regulatory and procedural maturity across five domains and twelve indicators using a structured rubric and single‑expert structured weighting (SESW); robustness is established through Dirichlet Monte Carlo analysis. Comparative results show Japan’s RRI consistently above 0.90, whereas Indonesia averages around 0.50. Indonesia’s principal bottlenecks are the absence of certified 2‑hour fire‑rated assemblies, limited standardization for timber connections and ductility, and unclear permitting pathways (PBG/SIMBG) with few precedents or third‑party certifications. Heatmaps and contribution charts visualize these gaps; “what‑if” scenarios indicate that standard submittals (MEP) and improved approval predictability could narrow the gap by over 30% in the short to medium term. The RRI+MEP framework provides a reproducible, transferable metric of compliance readiness for performance‑based code systems and can support timber policy development across ASEAN.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Shohei Kawanaka
AU  - Satoru Yamashiro
PY  - 2025
DA  - 2025/12/26
TI  - Enabling Medium-Scale Timber Buildings in Indonesia under SNI: A Regulatory and Technical Position Paper
BT  - Proceedings of the International Conference on Sustainable Energy: Toward Energy Transition and Net-Zero Emission (ICOSE 2025)
PB  - Atlantis Press
SP  - 86
EP  - 116
SN  - 3005-155X
UR  - https://doi.org/10.2991/978-94-6463-944-5_7
DO  - 10.2991/978-94-6463-944-5_7
ID  - Kawanaka2025
ER  -