Wilfried Walther
Bibliographic info:
6th International BUILDAIR Symposium on Building and Ductwork Airtightness, 6 May 2011, Berlin, Germany

The objective of the WTA* data sheet “Air tightness in existing buildings” is to support planners and contractors in modernizing and renovating buildings. Taking existing standards and regulations into account, the data sheet features the analysis of existing buildings, professional planning and implementation, as well as air tightness requirements (n50, q50) with quality control as the latest technological development.