How R-18 Polyurethane Insulated Garage Doors Lower Energy Bills in Swampscott, MA

By Charlotte Garage Door Service — Serving Swampscott, MA (01907) & Surrounding Marblehead, Lynn, Salem, Nahant, Peabody

Triple-Layer Steel + Polyurethane Construction for Swampscott, MA Weather

Unlike single-layer steel doors that radiate outdoor heat and winter cold straight into your Swampscott attached garage, triple-layer R-18 doors inject high-density polyurethane foam between two galvanized steel skins—creating a rigid, dent-resistant thermal barrier sealed with arctic-grade EPDM bottom weatherstripping.