The New Zealand Building Code contains minimum durability requirements for components. For roof structures the requirement is 50 years if component structural or 15 it not. Metal claddings are very common in Zealand, and spaces typically not deliberately ventilated. Recently, a number of roofs failing to meet their requirement, lack deliberate ventilation contributory factor some cases. In this...

Hygrothermal models are important tools for assessing the risk of moisture-related decay mechanisms which can compromise structural integrity, loss architectural features and material. There several sources uncertainty when modelling masonry, related to material properties, boundary conditions, quality construction two-dimensional interactions between mortar unit. This paper examines at mortar-...