Our aluminium flood barriers are produced to an unbelievably large regular, and can be found in a range of heights and lengths to fit your needs. The barriers are already rigorously analyzed to adjust to BSI Normal PAS1188 on allowable leakage premiums for demountable and making aperture flood defence barriers. https://docs.google.com/document/d/1tHLSFG_IdjmucORSeo-xTblXnjMx9SQ0sgz8-YdJbeg/edit?usp=sharing