Moisture risk assessment of cross-laminated timber walls: Perspectives on climate conditions and water vapor resistance performance of building materials

Seong Jin Chang, Seunghwan Wi, Seog Goo Kang, Sumin Kim

Research output: Contribution to journalArticle

Abstract

Cross-laminated timber (CLT), an engineering wood material prepared by bonding lamina in a vertical direction, is actively used in roofs, floors and shear walls of residential and commercial buildings, owing to its excellent structural stability, insulation performance, among other advantages. The building envelope, to which the wood-based material is applied, should be designed to prevent moisture problems. In this study, the ply-lam CLT with plywood was prepared, and its hygrothermal properties including the thermal conductivity, water vapor resistance factor, specific heat capacity, bulk density, and porosity were analyzed. A small-scale test demonstrates the feasibility of hygrothermal behavior evaluation of the wall with ply-lam CLT by numerical simulation. Moreover, the moisture risk of the ply-lam CLT house walls was evaluated by analyzing the climate conditions of 20 major cities in Korea. The moisture risk assessment results imply, that to ensure water stability, the envelope should be designed considering the type of insulation material, its hygrothermal properties, thickness, climate conditions of the area, etc.

Original languageEnglish
Article number106502
JournalBuilding and Environment
Volume168
DOIs
Publication statusPublished - 2020 Jan 15

Fingerprint

Timber
climate conditions
Risk assessment
risk assessment
Water vapor
timber
building
water vapor
Moisture
moisture
climate
water
behavior evaluation
insulation
Specific heat
performance
Insulation
Wood
Plywood
Korea

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction

Cite this

@article{4e059fded5784bb7a1e65c1d38f5f20f,
title = "Moisture risk assessment of cross-laminated timber walls: Perspectives on climate conditions and water vapor resistance performance of building materials",
abstract = "Cross-laminated timber (CLT), an engineering wood material prepared by bonding lamina in a vertical direction, is actively used in roofs, floors and shear walls of residential and commercial buildings, owing to its excellent structural stability, insulation performance, among other advantages. The building envelope, to which the wood-based material is applied, should be designed to prevent moisture problems. In this study, the ply-lam CLT with plywood was prepared, and its hygrothermal properties including the thermal conductivity, water vapor resistance factor, specific heat capacity, bulk density, and porosity were analyzed. A small-scale test demonstrates the feasibility of hygrothermal behavior evaluation of the wall with ply-lam CLT by numerical simulation. Moreover, the moisture risk of the ply-lam CLT house walls was evaluated by analyzing the climate conditions of 20 major cities in Korea. The moisture risk assessment results imply, that to ensure water stability, the envelope should be designed considering the type of insulation material, its hygrothermal properties, thickness, climate conditions of the area, etc.",
author = "Chang, {Seong Jin} and Seunghwan Wi and Kang, {Seog Goo} and Sumin Kim",
year = "2020",
month = "1",
day = "15",
doi = "10.1016/j.buildenv.2019.106502",
language = "English",
volume = "168",
journal = "Building and Environment",
issn = "0360-1323",
publisher = "Elsevier BV",

}

Moisture risk assessment of cross-laminated timber walls : Perspectives on climate conditions and water vapor resistance performance of building materials. / Chang, Seong Jin; Wi, Seunghwan; Kang, Seog Goo; Kim, Sumin.

In: Building and Environment, Vol. 168, 106502, 15.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Moisture risk assessment of cross-laminated timber walls

T2 - Perspectives on climate conditions and water vapor resistance performance of building materials

AU - Chang, Seong Jin

AU - Wi, Seunghwan

AU - Kang, Seog Goo

AU - Kim, Sumin

PY - 2020/1/15

Y1 - 2020/1/15

N2 - Cross-laminated timber (CLT), an engineering wood material prepared by bonding lamina in a vertical direction, is actively used in roofs, floors and shear walls of residential and commercial buildings, owing to its excellent structural stability, insulation performance, among other advantages. The building envelope, to which the wood-based material is applied, should be designed to prevent moisture problems. In this study, the ply-lam CLT with plywood was prepared, and its hygrothermal properties including the thermal conductivity, water vapor resistance factor, specific heat capacity, bulk density, and porosity were analyzed. A small-scale test demonstrates the feasibility of hygrothermal behavior evaluation of the wall with ply-lam CLT by numerical simulation. Moreover, the moisture risk of the ply-lam CLT house walls was evaluated by analyzing the climate conditions of 20 major cities in Korea. The moisture risk assessment results imply, that to ensure water stability, the envelope should be designed considering the type of insulation material, its hygrothermal properties, thickness, climate conditions of the area, etc.

AB - Cross-laminated timber (CLT), an engineering wood material prepared by bonding lamina in a vertical direction, is actively used in roofs, floors and shear walls of residential and commercial buildings, owing to its excellent structural stability, insulation performance, among other advantages. The building envelope, to which the wood-based material is applied, should be designed to prevent moisture problems. In this study, the ply-lam CLT with plywood was prepared, and its hygrothermal properties including the thermal conductivity, water vapor resistance factor, specific heat capacity, bulk density, and porosity were analyzed. A small-scale test demonstrates the feasibility of hygrothermal behavior evaluation of the wall with ply-lam CLT by numerical simulation. Moreover, the moisture risk of the ply-lam CLT house walls was evaluated by analyzing the climate conditions of 20 major cities in Korea. The moisture risk assessment results imply, that to ensure water stability, the envelope should be designed considering the type of insulation material, its hygrothermal properties, thickness, climate conditions of the area, etc.

UR - http://www.scopus.com/inward/record.url?scp=85074578939&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85074578939&partnerID=8YFLogxK

U2 - 10.1016/j.buildenv.2019.106502

DO - 10.1016/j.buildenv.2019.106502

M3 - Article

AN - SCOPUS:85074578939

VL - 168

JO - Building and Environment

JF - Building and Environment

SN - 0360-1323

M1 - 106502

ER -