Sectional garage doors are a popular and practical choice for homeowners, offering a blend of aesthetic appeal, robust functionality, and enhanced security for their garages. Beyond aesthetics, sectional garage doors excel in insulation and energy efficiency. Many models feature multi-layer construction with a core of insulating material, such as polystyrene or polyurethane foam, sandwiched between layers of steel.This insulation, combined with robust weather seals installed along the bottom, sides, and top of the door, creates an effective barrier against external elements like cold, heat, wind, and moisture, which can lead to reduced energy consumption if the garage is attached to a heated or cooled living space.