Hygrothermal Properties Analysis of Bamboo Building Envelope with Different Insulation Systems in Five Climate Zones

Laminated bamboo lumber (BLL) and scrimber (BS) are potential environmentally friendly building materials, considering that they hygroscopic materials their hygrothermal performance is closely related to the occupants’ comfort, durability, energy consumption. This study carried out material property tests on bamboo-based (BLL BS) analyzed simulations exterior wall constructions in five major climatic zones using WUFI. Results show BS had a greater heat storage capacity than BLL. However, BLL showed relatively higher moisture sorption capacity, was more easily permeated by vapor BS. The water content (WC) of 12 walls below 20%. met requirements envelope, WC lower Based results, designed this suitable for corresponding climate zones. In cold severe especially, external insulation system performed better internal system. recommended these two design simulation results made types provide scientific basis application material.