Installing metal roofing can be dangerous for the inexperienced because of the metal working tools that must be used
. The person installing the materials will need to wear eye and hand protection to protect them because the edges of the metal roofing materials can be very sharp. There are a couple of different styles of roofing pieces that will be used for the roof and they must be positioned and secured properly to make sure that the roof will be structurally sound when completed. Metal roofing can expand, contract, and shift due to heat and cold and this should be considered during the installation to avoid leaking and other problems.