3000sqft Reflective Solid White Foil Foam Core 1/4 inch Insulation Barrier 4x750

Energy Star Qualified : ICC-ES Recognized : R-Value = 15.67 unaffected by humidity : Prevents condensation : Prevents 97% of radiant heat transfer : Vapor barrier : Elastic : 19dba contact noise reduction : UV resistance : Does not promote mold or mildew : Does not provide for nesting of rodents bugs or birds : Seals around nails (no leak) : Reflective aluminum foil on each side of 5mm (13/64) closed-cell polyethylene foam center : Keeps its shape over time (doesn t collapse) : Rippled surface increases airflow : Member of US Green Building Council - Over 2 billion square feet sold worldwide. Read Super Shield insulation reviews top left of page. >>>1/4 inch thick >>>3000 sqft (4 feet x 750 feet)