Here is a company taking an Environmental Nightmare and making a highly desirable building block for industry and construction from it. ByFusion Global Inc. | Reshape the Future of Plastic Waste
Cool, sounds like something I've heard being in development. ByBlock | ByFusion Global Inc. Using plastic to replace asphalt in roads is being developed, but I think more microplastic with that and vehicles.
For some applications their colorful appearance may be a feature not a bug But painting might be a good idea because UV will have a real but unequal effect across the included plastic types. Not complaining though - I think this is a very good idea.
A decade or so ago, I remember reading about using clear, empty water bottles in the roof and walls to admit light ... an affordable alternative to glass. Bob Wilson