http://www.calidad.net.au/news/category/latest_news/4 This section keeps you up-to-date with all of the latest developments in the world of natural lighting and ventilation solutions. News and information relating to CALIDAD Industries, our partners and our products can be found here. For more information on any of these articles, please don't hestiate to contact us . en-us copyright 08/8/2010 720