Polyolefin-based films and sheets for decorating building interior and exterior, said films and sheets for use in building constructions; films and sheets coated with resins by Electron Beam (EB) irradiation for decorating building interior and exterior, said films and sheets for use in building constructions; wood-grain pattern printed polyolefin-based films for decorating building interior, said films and sheets for use in building constructions; polyolefin-based sheets for building for use...