Solyndra Inc. of Munich, Germany, a cylindrical photovoltaic (PV) systems manufacturer, has announced a multiyear sales agreement with Sika Services AG of Baar, Switzerland, a roofing materials manufacturer. The two companies will work together to promote Sika’s highly reflective roofing products and Solyndra’s rooftop PV systems. Initially, the agreement will focus on markets in Germany, France, Italy, the UK, Spain, Slovenia and the Czech Republic.