: Some curtains list an R-value , which measures thermal resistance. Higher numbers (e.g., up to 6 when properly installed) indicate better insulation.
How To Choose The Right Heat Blocking Curtain - Budget Blinds buy insulated curtains
: The best options have a separate thermal or blackout lining (often white or light-colored to reflect summer heat back out). : Some curtains list an R-value , which
Key Features to Look for in Heat-Blocking Curtains. When shopping for heat-blocking curtains, consider these important features: * Budget Blinds Best Insulated Curtains For Winter - 2026 Reviews : Some curtains list an R-value