Remember to implement formalized methods to manage hot work at your business. Whether it is work conducted by your own employees or by contractors, use of open flame for tasks such as welding requires task planning and preparation of the work area. Besides fire safety considerations, if not properly managed, some welding and cutting operations can produce explosive hazards and other dangers as well. Seek applicable information on hot work and implementing a hot work program from OSHA, or industry sources. As an added reference, please see: https://en.wikipedia.org/wiki/Hot_work.