How do you insulate a mobile home?

To insulate a mobile home, start by checking the existing insulation in the walls, floors, and ceiling, and replace or add insulation as needed. Use materials like fiberglass batts, foam board, or spray foam for walls and underbelly insulation, ensuring they fit snugly to prevent air leaks. Seal any gaps or cracks around Windows, doors, and vents with weatherstripping or caulk. Lastly, consider adding insulated skirting around the base of the mobile home to improve thermal performance.