The fibreglass top of the RV was smashed by the impact of a tree.The owner covered the damaged area with tape so rain wouldn't get in. The hardest part of the repair was getting the glue from the tape off. It took lots of acetone and rubbing to remove it all. Other than that it was a straight forward repair. Grind the damaged area clean, then re-fibreglass, fill and fair. The owner didn't want the repair painted and was happy with flowcoat finish.