What is the purpose of using exterior sheathing material?

Using exterior sheathing material serves several important purposes, one of which is to allow environmental adaptation without damage. This function is crucial because exterior sheathing acts as a protective layer for the structural elements of a building. It provides a barrier against moisture ingress, wind, and other environmental factors that could lead to structural deterioration or damage over time.

Additionally, exterior sheathing materials are designed to accommodate movements caused by temperature fluctuations and humidity changes. This adaptability helps in maintaining the integrity of the building envelope, preventing issues such as warping or cracking that could occur if the structure were rigidly confined.

While aspects like construction costs, aesthetic appearance, and thermal insulation are relevant to building design and functionality, the primary and essential role of exterior sheathing material is its capacity to protect the structure from environmental elements, ensuring longevity and durability.