Denise Martin

CLT in construction – Durability

In Australia and New Zealand in recent years, cross-laminated timber (CLT) has become a popular alternative to traditional building methods. The hygroscopic properties of timber and its ability to absorb and redistribute water vapour depending on the adjacent (exterior climate and indoor) environment make it a robust and durable building material. 

However, the combination with vapour-permeable and vapour-impermeable building materials increases complications in predicting whether a construction will be subject to moisture accumulation and, consequently, timber decay. Martin will review different types of CLT (timber species) construction systems, in different climates across Australia and New Zealand. Verification of these different systems was done using sophisticated software. The results will be shared and discussed.

About Martin:
Martin’s expertise spans several aspects of building science. These include energy efficiency and building performance through computer modelling; hygrothermal detail analysis using WUFI; isothermal detail analysis; and building envelope permeability testing using the Minneapolis Blower Door.

Martin is the founder of BEO Ltd – consulting building analysts in the residential and commercial building sectors of New Zealand and Australia. She is passionate about sharing her experiences and raising awareness of building issues and solutions, and has been involved in several certified Passive House projects and other key sustainable projects in New Zealand. These include the campground in Glenorchy as part of the Living Building Challenge.