I have done many many roofs where we've had to take multiple layers off, often down to wood shingles. But today I had a headache tearing shingles off of ice guard for the first time. What a royal pain! Early in the morning we were able to chip away at it with roofing shovels and flat bars. It was very tedious, but we were able to get it down to an acceptable level. Then by the time we got to the back it had warmed up (and today was not a hot day by any means) and the shingles were literally a bear to remove. We tried a pneumatic scraper, the roofing shovels, and flat bars. We asked at the building center and nobody had any suggestions of how to best get it off. Short of removing the sheeting and replacing it, I'm wondering if anyone else has any suggestions of how they have removed shingles over ice guard. Literally there was a strip of shingles almost permanently bonded to the ice guard every 5". Thanks for your help!