Non-metallic buildings (sheds); non-metallic garden rooms in the nature of building structures; non-metallic modular building units; non-metallic modular portable buildings; non-metallic modular units for constructing prefabricated buildings; non-metallic modular units for constructing relocatable buildings; non-metallic prefabricated building elements for on site assembly; non-metallic prefabricated building elements for sale in kit form; non-metallic prefabricated buildings; non-metallic prefabricated relocatable buildings; prefabricated relocatable buildings (non-metallic) constructed in modular units