Wood’s strength, flexibility and ability to weather extreme climates comes in part from its natural origins, embodying the same qualities that allow trees to grow strong and live long. From the Mass Timber Conference, here is some of the latest thinking on how wood performs in demanding applications.

Durability by Design for CLT and Mass Timber

Like any building design, it’s key to design with a structure’s long-term durability in mind. When designing a building it’s critical to reduce the risk of construction moisture and in-use moisture.

Design detail for a building’s durability can be classified into the 4Ds:

  • Deflection
  • Drainage
  • Drying
  • Durability

Leveraging the Thermal-Efficiency Advantage: The Impact of Structure on Energy Use

Colin Shane of RDH Building Science talks about the unique thermal benefits of building with mass timber beyond the typical air and water barriers of typical buildings.

CLT provides significant thermal mass that can buffer heating and cooling loads. The effect is greatest in mixed climates where temperature fluctuates above and below interior temperatures. CLT can store heat and release it slowly over time which can result significant energy savings compared to other building materials in comparable climates (starting at 18:35).

From CLT Handbook, Building Enclosures (Chapter 10)

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