Application: improving the performance of natural ventilation systems, prevention of blowing out­side air into the attic.

Advantages: deflectors located on the top of the existing ventilation shafts.

Key features: collapsible structure.

Developed: Research and Innovative Laboratory of Thermal Physics and Engineering Systems of Structures, Supervisor – Academician of NAS of Belarus, Prof. Dr. Boris Khroustalev, D.Sc.

Tel.: +375 17 267 67 12, fax: +375 17 267 67 09, e-mail: