Materials & Construction
The Model 220 door uses “C”-shaped 20-gauge center and 16-gauge end stiles which are formed of galvanized steel with pre-located extruded holes for rapid hinge attachment. Optional 16-gauge center stiles are also available.
Bottom sections feature a flexible bulb-shaped vinyl astragal held in place by a continuous roll-formed steel retainer that reinforces the lower portion of the door at the same time.
Additional options include top head seal, joint seals and jamb seals. The optional polystyrene insulation covered with .022" minimum embossed pre-painted white steel provides an R-value of up to 7.64. Lite options include insulated or non-insulated factory-glazed lites or complete aluminum full-view sections for maximum visibility. Operators can also be specified for use with the Model 220.
*Wayne Dalton uses a calculated door section R-Value for insulated doors.