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Home Building & Construction Weatherproofing Window Insulation Kits
VEVOR Double Reflective Insulation Roll, Foam Core Radiant Barrier, 5.5mm 48 in x 50 ft, Double-Sided Aluminum Foil EPE Foam Heat Reflective Shield, Thermal Insulation Roll for Window RV Roof

VEVOR Double Reflective Insulation Roll, Foam Core Radiant Barrier, 5.5mm 48 in x 50 ft, Double-Sided Aluminum Foil EPE Foam Heat Reflective Shield, Thermal Insulation Roll for Window RV Roof

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What is the R rating of this product?
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Hello, the R value is not a fixed value, because it is affected by many factors. According to general conditions, the R value of this product is roughly between 0.2-0.5m²・K/W
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