Reflective EVA Foam AC Insulation Kit

This window air conditioner insulation set consists of two dual-layer aluminum foil sheets and two adhesive sheets. Each foam panel is made from dense, eco-friendly EVA foam with a reflective, waterproof aluminum foil surface. The panels are flexible and can be easily cut to fit most window AC units (5000–22000 BTU). Dimensions are adjustable per installation; typical finished panel thickness is approx. 10 mm, with standard sheet size before cutting around 60 x 90 cm (allowing for ±1–3 cm measurement variance). The material resists dust ingress, maintains shape over repeated seasonal use, and provides thermal and acoustic sealing without rigid framing or tools. The reflective aluminum layer reflects solar radiation and outdoor heat in summer while reducing indoor heat loss in winter. Combined with the closed-cell EVA foam core, it forms an effective barrier against cold drafts, hot air infiltration, rain, and moisture — stabilising room temperature year-round. Installation requires only scissors and takes minutes: measure the gap around your AC unit, cut the foam to size, apply adhesive backing, and press firmly into place. Ideal for UK homes with older or non-integrated window AC units, especially in draft-prone sash or sliding windows. Enhances energy efficiency by minimising compressor cycling, lowers background noise from outside, and extends AC unit lifespan by shielding it from weather exposure.