How R-18 Polyurethane Insulated Garage Doors Lower Energy Bills in Boulevard Park, WA

By Luna Garage Door Specialist — Serving Boulevard Park, WA (98168) & Surrounding Burien, White Center, Tukwila, SeaTac, South Park

Triple-Layer Steel + Polyurethane Construction for Boulevard Park, WA Weather

Unlike single-layer steel doors that radiate outdoor heat and winter cold straight into your Boulevard Park 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.