The homeowners had no idea that their roof was so bad.  This roof should have been replaced 5-years ago.  There are so many potential leak zones on this roof.  3-tab shingles are rated for 65 mph and no one puts them on anymore considering that architectural shingles are now rated for 160 mph.  North Platte NE has seen regular wind gusts over 90 mph.  You should have your roof inspected AFTER EVERY STORM.