A roofer’s job is to keep water from leaking into your house or the ceiling from collapsing. They repair roofs and install insulation. Residential roofers know each measurement has to be exact and each shingle and/or tile must be properly installed to make sure the roof is weather resistant. Performing these duties from a height brings a lot of liability if someone was to fall off a ladder or causes some sort of damage to the third party. You need to make sure you are protected from certain mishaps.