In the case of a full-scale roof installation, carrying heavy shingles and other materials up and down a ladder is backbreaking work. And make no mistake, working on the rooftop itself is often dangerous, if a roof pitch is not within the relatively modest 4/12 to 9/12 range, you definitely want to consult with a pro.
Even if you are able to work in those conditions, the work itself requires specialized tools and experienced roofers – otherwise, all your hard work could go to naught after a season or two, or the next big storm.
A professional roofer will carry tools such as air compressors and nail guns. We will have the necessary safety equipment, know how to obtain all the permits, and have supplementary but vital tools like extension ladders which make all the difference.