The demands described below are representative of those that must be met by an employee to successfully perform the essential functions of this job: While performing the duties of this job, the employee is regularly required to lift, pull, push and position ladders, ropes, pulleys, material and equipment in excess of 85 pounds. Mathematical Acumen (Ability to add, subtract, multiply, and divide in all units of measure, using whole numbers, common fractions, and decimals.).