I built a shed in the back yard, but upon beginning to roof it I find that
the roof is 1/2 inch wider than three shingles laid end to end. What do I
do with this? Cut a 1/2 inch piece and insert it into the row of shingles?
Cut the offending 1/2 off of the roof with a circular saw? (yeah, right!) I
obviously have no idea of how to deal with this situation. Somebody, please
help me. Ignorant, and trying not to be stupid.

Dave