Yeah there's a leak we patched. .. The roof/entire building is in rough shape, so we're just dealing with what we got for the next year or two, .... Not worth putting much more money into it.
Probably obvious but one can buy large tarps from Princess Auto, often on sale at great prices. I have seen folks drape them over roofs to shed the water, will last 1-2 years as long as they are secured and don't get blown off.
Water intrusions are bad, things rot and danger increases.