Thorough knowledge of the common practices, tools, terminology and safety precautions of a trade; knowledge of the use and characteristics of common building materials; ability to use and operate tools and machinery associate with trade; thorough knowledge of hazards and safe precautions associated with the trade; ability to plan, organize and successfully complete multiple, unrelated simultaneous projects; ability to provide and follow oral and written instructions; demonstrate leadership and organizational skills; ability to estimate material and time required for various jobs; ability to interpret technical documents, drawings, blueprints, etc. Occasional sitting, balancing, kneeling, and crawling Work involves moderate exposure to unusual elements such as extreme temperatures, dirt, fumes, gases, unpleasant odors, extreme vibrations, hazards such as moving vehicles, electric current, moving mechanical parts, etc.