Roofing Safety: What to Know Safety is the number one concern among Calgary roofing companies. Calgary roofers spend time, energy, and money to train their staff and make sure that their employees are up to date on all safety procedures regarding the line of work. While there are many roofs that are easily accessed and can be worked on relatively safely, accidents are accidents because of their unpredictable nature. The only way to effectively prevent accidents is to try and anticipate possible threats ahead of time.