Energy efficient year round - Attic door insulation cover designed to seal drafty attic access and prevent the entry of air, dust or pollutants into your home. It works in both hot summers and cold winters to keep interior conditions more stable. Radiant heat reduction with a strong barrier - Two outer layers of aluminum foil, each reinforced with a durable polyethylene layer, form a powerful radiant heat barrier. - Reflects up to 97% of radiant heat, helping to minimize heat gain in summer and heat loss in winter. - Acts as an excellent vapor barrier for the substrate and can be used with floor heating, crawl spaces, duct insulation, metal buildings, basement walls and attic floors and walls. High reflectivity and easy installation - Double-sided barrier made from metallized aluminum provides high reflectivity to keep heat where you want it. - The insulation barrier is reinforced with double bubble foil for durability. - Easily cut with a utility knife or scissors, allowing straightforward installation on various surfaces and shapes. Bubble foil insulation for energy and sound benefits - Reduces load on heating and cooling systems, helping your home stay warmer in winter and cooler in summer. - Can significantly lower annual energy bills with continuous year‑round performance. - Also offers sound insulation benefits when used in walls, ceilings and floors. Use scenarios - Attic access door in a typical home: install to minimize heat loss in winter and heat gain in summer, improving overall energy efficiency. - Crawl spaces, basement walls, duct insulation and metal buildings: apply to reduce thermal transfer and keep internal environments more stable. - Walls, ceilings and floors in living spaces: use where additional sound insulation and thermal performance are desired, contributing to quieter and more comfortable rooms.