Superb
The most roof tiles broken in one minute (female) is 923 and was achieved by Lisa Dennis (UK) on the set of 'Lo Show dei Record' in Milan, Italy, on 11 July 2014.
The tiles were arranged in stacks of 10 tiles. Lisa began the attempt smashing two stacks of tiles at a time; one with each hand. She then alternated to one stack at a time with one hand. Only 2 tiles from the stack she hit during the one minute time period did not break.