Effects of Climate Change on the Moisture Performance of Tallwood Building Envelope

The objective of this study was to assess the potential effects climate change on moisture performance and durability massive timber walls basis results derived from hygrothermal simulations. One-dimensional simulations were run using DELPHIN 5.9.4 for 31 consecutive years 15 realizations modeled historical (1986–2016) future (2062–2092) climates five cities located across Canada. For all cities, water penetration in wall assembly assumed be 1% wind-driven rain, air changes per hour drainage cavity 10. mold growth index outer layer cross-laminated panel used compare periods. simulation showed that risk would increase considered. However, relative varied city city. In Ottawa, Calgary Winnipeg, higher than Vancouver St. John’s. John’s, under assumptions these simulations, already period. This means mass two could not withstand a rate as with 19 mm an value Additional designs will explored respect performance, studies reported publication.