The bottom section includes a full length pliable bulb-type weatherseal, and intermediate sections include rabbet seal.
All sections are solid.
Torsion springs available on all widths. Sections are finished with a baked-on primer and white polyester top coat. Section construction forms an extremely rigid section that provides exceptional insulation and air infiltration qualities. Limited Lifetime Warranty Polyurethane foam used in Thermacore doors is CFC free . PVC premium bulb-type, bottom weatherseal protects against wind and rain infiltration.