Prediction of Hygrothermal Performance and Mold Risk on Exterior Walls Using Domestic-Manufactured Structural Insulated Panels

ZHA Ziqiong; HAN Jiakai; ZHOU Haibin; FANG Changhua; ZHANG Wei; WANG Xiaohuan

doi:10.12326/j.2096-9694.2024118

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Prediction of Hygrothermal Performance and Mold Risk on Exterior Walls Using Domestic-Manufactured Structural Insulated Panels
1.Research Institute of Wood Industry，Chinese Academy of Forestry；Key Lab of Wood Science and Technology of National Forestry and Grassland Administration，Beijing 100091，China
2.International Centre for Bamboo and Rattan，Beijing 100102，China
Vol. 39, Issue 2, Pages: 47-56(2025)
DOI： 10.12326/j.2096-9694.2024118
稿件说明：

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查紫琼,韩佳锴,周海宾等.木竹结构保温板外墙热湿性能及霉菌风险模拟预测[J].木材科学与技术,2025,39(02):47-56. DOI： 10.12326/j.2096-9694.2024118.

ZHA Ziqiong,HAN Jiakai,ZHOU Haibin,et al.Prediction of Hygrothermal Performance and Mold Risk on Exterior Walls Using Domestic-Manufactured Structural Insulated Panels[J].Chinese Journal of Wood Science and Technology,2025,39(02):47-56. DOI： 10.12326/j.2096-9694.2024118.

摘要

外墙热湿性能及霉菌风险模拟预测，是开发国产节能耐久木竹建材的重要技术内容。以木竹结构保温板外墙为研究对象，通过构建无线高精度热湿数据采集装置，并采用建筑热湿性能软件模拟，获得外墙复合构造界面层空气温度、相对湿度和内外挂板材料含水率等指标的预测和实测数据，分析北京地区气候条件下的外墙热湿动态响应，预测霉菌生长风险。无线高精度建筑热湿监测系统运行稳定，为实时热湿状况表征和软件模拟提供可靠数据；国产木竹建材制备结构保温板外墙热湿阻隔作用显著，外墙系统在极端降雨条件下干燥能力卓越。木竹建筑结构保温板外墙构造层温湿度、含水率分布规律和五年变化趋势预测精准。外墙总含水量与室内温湿度长期稳定，重组竹和云杉（

Picea asperata

）挂板材料含水率低于15%，霉菌生长风险极低。研究结果为国产木竹建材在外墙应用与设计优化提供参考。

Abstract

Predicting the hygrothermal performance and mold risk using the simulation model is a vital technical aspect for developing domestically produced

energy-efficient

and durable wood-bamboo building materials. This study focuses on Structural Insulated Panels (SIPs) exterior walls. By constructing a wireless high-precision hygrothermal data acquisition system and utilizing building hygrothermal performance software

measured and predicted data on indicators such as air temperature

relative humidity at the composite construction interface layer

and moisture content of internal and external cladding materials were obtained. The study analyzes the hygrothermal dynamic response of exterior walls at the Beijing’s regional climatic conditions and predicts the risk of mold growth. The wireless high-precision building hygrothermal monitoring system operates stably

providing reliable data for real-time hygrothermal condition characterization and software simulation. Domestic wood-bamboo building materials used in SIPs exterior walls exhibit significant hygrothermal barrier effects

with an exceptional drying capability after extreme rainfall conditions. Precise predictions were made regarding the temperature

humidity

and moisture content distribution patterns within the SIPs exterior wall structural layers

as well as five-year trends. The total moisture content of the exterior wall and indoor temperature and humidity remains stable over the long term study period

during which the moisture content of recombinant bamboo and spruce cladding materials was consistently below 15%

therefore preventing mold growth. This research serves as a reference for the application and design optimization using locally produced wood and bamboo construction materials for the exterior wall systems.

关键词

Keywords

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