When we signed the windows, doors & more contract we were assured that the roofing crew would clean up after themselves. We were specifiably told that they would thoroughly 'sweep' the ground with their stick mounted magnet to pick up all stray nails. I used to be a roofer, I KNOW it can be done with maybe, MAYBE one or two nails missed if it is done repeatedly. My husband and I have picked up five dozen + nails from the lawn, cement walk, and driveway. One we found in the tire of our car (18 dollars) and one I found the hard... read full review »