Advanced Materials Research Vol. 899 (2014) pp 579-582 © (2014) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/AMR.899.579 All rights reserved. No part of contents of this paper may be reproduced or transmitted in any form or by any means without the written permission of TTP, www.ttp.net. (ID: 158.196.209.137, VŠB-Technical University of Ostrava, Ostrava, Czech Republic-17/02/14,11:17:36) 580 EnviBUILD Buildings and Environment 2013 Advanced Materials Research Vol. 899 581 582 EnviBUILD Buildings and Environment 2013