This paper describes computer simulation associated with a recent research project to develop improved design data for the ASHRAE Handbook—Fundamentals. The project presents U-factor data for seven different types of nonresidential door product, for comparison to test. These data are for seven different specimens, representing these product categories: noninsulated sectional (multi-panel) garage door, insulated sectional garage door, three-wing revolving door, fourwing revolving door, metal coiling roll-up door, emergency exit door (or “fire door”), and aircraft hangar door.

Units: Dual