Santa Clause may be the one we always expect to see on a roof top. But do you know who really climbs up on roofs all the time? Roofers do. Roofers can do some of their work from the ground. They can calculate how many shingles they need, and they can evaluate a roof's condition to some degree. However, most of their work does take place up on the actual roof. They have to be able to do everything while standing, at height, on an incline. That's tough! Since we know how tough roofing is, we are happy to write about the topic from the comfort of the ground. We'll leave the rooftop stuff to the real roofers.