Due to rising energy prices and a higher ecological awareness there is a growing attention for energy efficiency and sustainability in building construction. New concepts and techniques for well insulated and airtight buildings require adapted construction methods for weathertightness. This research project aims at developing design guidelines for new building envelope systems concerning weathertightness.
Most building envelope systems rely on pressure moderation to achieve a good weathertightness. By separating the airtightness plane from the water shedding surface a drained cavity can be pressure moderated to limit the amount of water that enters the construction. A better understanding of those phenomena makes way for more rapid evolution in energy efficient and sustainable building envelope design
