Requires working in varying weather conditions outside and temperature extremes inside with extreme ranges of humidity and dryness; working in confined spaces for extended periods of time; walking or standing on inclined, uneven, or slippery surfaces; working with or near hazardous chemicals, materials, fumes, dust, or smoke; and working in areas of constant high noise and vibration levels. Requires climbing ladders and stairs and working on elevated platforms or scaffolding; walking and/or standing for extended periods of time; kneeling, crawling, stooping, bending, or twisting for extended periods of time; pushing, pulling, and reaching above the shoulders; wearing personal safety equipment including breathing apparatus; manual and detailed hand work using both hands and may require repetitive manual tasks.