You should tighten them down.
Sorry about that. We lose roofs to rain and our loose roofs get blown off by wind. Hey. I have been using the spell checker and even recently found my Websters College Dictionary. I knew it was around here somewhere.
At any rate, got to bail for awhile. Will check out the thread again later today.
If a roof in Los Angeles pools water, it is bad news with 1-2 inch/rain per hour. Usually it is some roofer crew that leaves crap up there before the store that plugs the drain/gutters.