Reads piping diagrams and isometric drawings and selects required insulation material (in sheet, tubular, or roll form), such as fiberglass, mineral wool, calcium silicate ceramic blanket, cellular foam as well as foam rubber and urethane-type materials, based on material's heat retaining or excluding characteristics. Measures and cuts insulation material to specified size and shape for covering flat or round surfaces using tape measure, knife, scissors, sheet metal shears, and related tools.