17 delegates from 9 countries attended the expert meeting. The host was Hunan University (Prof. Guoqiang Zhang) who in conjunction with the expert meeting also organized the “International symposium of Sustainable City and Built Environment” with about 250 attendees and 31 presentations on the state-of-the-art within the European and Chinese built environment.

At the meeting the first Annex report “Ventilative Cooling – State-of-the-art Review” was completed (see separate article in this newsletter).

The Annex is also collecting a database (goal of more than 150 case buildings) of existing ventilative cooling systems to systematically document characteristics, used technologies, typical components and control strategies depending on climate, building type, building design, etc. This work is progressing well and data input is received from 125 buildings so far. The database will by the end of 2015 be available from the Annex 62 website.

Another important topic at the meeting was the discussion of the development and evaluation of tools and methods for prediction of overheating risk and cooling need. This work has started and the initial results of tools development and evaluation was presented and discussed.

Best practices in building regulations among participating countries has been collected. A proposal for a common case to be used as basis for analysis of national building regulations will be developed until the next meeting in order to compare and evaluate the different national approaches and develop recommendations for future regulations in relation to ventilative cooling.

Examples of research activities and results from Annex 62 will be presented during two sessions at the AIVC 2015 Conference in Madrid in September 2015.

The 4^th Annex 62 Expert Meeting will be in Boston, US on October 12-13, 2015. The host of the meeting will be MIT (Prof. Leon Glicksman)

More information will follow.