Dual-glass type modules (also called double glass or glass-glass) are made up of two glass surfaces, on the front and on the rear with a thickness of 2. Compared to traditional glass-backsheet modules, they offer greater durability and environmental resistance. Originally double-glass solar panels were heavy and expensive, allowing the lighter polymer backing panels to gain most of the. Single glass panels use a tempered glass front and a polymer backsheet, making them lightweight and cost-effective, ideal for standard residential pitched roofs. At IBC SOLAR, we use 2,0 mm x 2,0 mm glass layers, whereas some other market offerings use. Installers should follow all safety precautions described in this guide as well as local codes when installing a module. Installing solar photovoltaic systems requires specialized skills and knowledge.