The energy and mass flows required to sustain dwelling services can be established and quantified only within the framework of a stock and flow model of the total housing stock. This paper develops such a model to estimate the energy flows of a typical sub-population of New Zealand housing stock. The energy and mass flows of key building materials are estimated and the energy flows of alternative cladding systems are compared. The stock and flow model is driven by empirical schedules of mortality.
This paper explores the influence and role of both drainage and ventilation drying on the ability of enclosure assemblies to control moisture. Drainage is often the most direct method of removing water from within a wall (i.e., from exfiltration condensation or rain penetration), but it is often not sufficient to provide moisture control. Design approaches that rely solely on drainage to remove moisture from behind the outer layers or cladding ignore the significant quantities of moisture that can be stored in the outer layers of most enclosure walls.
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