| abstract |
A back sheet for a solar cell module excellent in barrier property and adhesiveness is provided. The back sheet for a solar cell module comprises two gas barrier films, wherein the gas barrier films each have a substrate film and a barrier layer comprising an inorganic layer comprising an inorganic oxide, an inorganic nitride or a mixture thereof on the substrate film, the outermost barrier layers each have an outermost surface having a surface roughness (Ra) of 0.1 to 3 nm, the barrier layers face to each other through the adhesive layer, and the adhesive layer is obtained by curing a two-liquid type polyurethane adhesive. |