ROOF TILES TECHNOLOGY LTD was created by Mr. Lanzoni and Stewart Brown, gathering their 70 years joint experience in concrete roof tile market in UK and worldwide to offer to the manufacturers new approaches for implementing their operation and extend product offer with high added value solutions. RTT’s aim is to offer a limited selection of companies a unique way to enhance their product range in the rapidly growing photovoltaic roofing industry. RTT invented and patented new BIPV system called "BiSolar".