The next edition of the National Construction Code proposes amendments. These amendments focus on the requirements for energy efficiency of commercial buildings. It includes waterproofing of balconies, car parks, storage and warehouses. Additionally, it focuses on condensation management. If approved, these changes will affect construction costs for houses and apartments. They will also impact constructionContinue reading “NCC 2025 proposed changes”
Category Archives: Building physics
Condensation and mould
The average person feels comfortable with an internal temperature of 22-25 degrees in winter. The colder the external temperature is, the higher the temperature difference is. Condensation appears when warm air contacts a cold surface. It is the same phenomenon when droplets appear on a glass of cold water in summer, and it is theContinue reading “Condensation and mould”
Human thermal comfort
Humans are comfortable only within a very narrow range of conditions. Our body temperature is about 37°C, despite the fact that the body generates heat even while at rest: we must lose heat at the same rate it is produced and gain heat at the same rate it is lost. The diagram below shows theContinue reading “Human thermal comfort”
NZEB Energy Rating 