Saw someone who described this installation method but now I can't find it. Is it okay to lay 50+50 mm cell plastic s 200 and then 21x120 planks, plates, and then parquet flooring? The base is concrete. We have the lumber and it would be nice to avoid buying the expensive grooved cell plastic boards.
How would one, in that case, keep the boards together so that they don't slide apart and move around? Perforated tape on the underside?
How would one, in that case, keep the boards together so that they don't slide apart and move around? Perforated tape on the underside?