Random construction question.

[jfkbengals]

The sweeper magnets are what the contractor should be doing, but unfortunately it will not get them all.

We had our roof replaced in the spring. After they were done I found over a dozen nails around the pool equipment alone without even trying to look for them. Called the company back out and made them clean again. They did. The next day, same thing. The sweepers do a good job, but they just can't pick up everything over an uneven surface, especially if there are leaves, grass, etc. that can hold the nails back.