I have got 4 large open sided sheds that we have built from telegraph poles and steel roof sheets to keep logs dry which work fine, i desperately need more undercover storage but as i am looking to buy my own piece of land am reluctant to make more permanent buildings. We split into ibc's stack them 2 high and line them up, ive tried covering them with various tarpaulin sheets from cheap ones to dear ones, roof sheets strapped down, concrete blocks on top! you name it we have tried it! every tim