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Building & Construction - Building Envelope
Seminar:  Energy Efficient, Durable Building Enclosure Design
 
Energy efficiency is a very important attribute for a sustainable building due to the environmental impact associated with energy production.   Buildings have the largest share of energy use of all sectors , e.g. buildings consume over 38% of total energy.  The Building Enclosure does not use energy directly, but it can have a significant impact on heating and cooling loads.  Recent energy codes include measures for reduced envelope loads, e.g. reduce  the heat flow across the building enclosure.

The most effective measures for reduced envelope loads/reduced energy flow include adding insulation and increasing building envelope airtightness. That is good for energy! However, the less energy flow from the inside to the outside the colder the outside layers of the building get in the winter. The colder the layers, the wetter they get and the wetter they stay. This is not good for durability. In order for the building enclosure to meet the energy efficiency standards without compromising durability, the building envelope design must address both building physics and proper detailing for effective moisture management, the main factor affecting durability.  This seminar will review the most recent changes in energy codes and the essential design attributes for an energy efficient, durable envelope.