This is the Single Bubble One Side has a Foil Finish The other side has a White Vinyl finish Some of the pictures in this listing show the foil both sided but this is White/Foil Size 16x100 The NASATEK? White/Foil Reflective Insulation is the most versatile, widely-distributed, energy-efficient product that we manufacture. The characteristics that make it so attractive include ease-of-handling and installation, more than 40 commercial and residential construction applications, and a large selection of product configurations to accommodate the vast majority of applications / buildings. Distribution of our Double Reflective Insulation is worldwide through Do-It-Yourself Retailers, Contractor Sales Groups and Industrial / Commercial Building Products Suppliers. Description: The product consists of two 96% reflective layers of film bonded to two internal layers of heavy gauge polyethylene bubbles (total thickness 5/16”). A wide variety of widths and lengths are manufactured. (Please refer to "Product Codes/Sizes” below.) Two product edges are available; a "standard edge” and a "staple tab edge”. When the insulation is installed on 16” or 24” centers, or inside cavities, the staple tab edge is easier to work with. (See renders to the left.) Product Benefits (R-value and/or Radiant Barrier) vary per application. A Single Bubble product configuration is also available for special applications, on request. Applications: Do-It-Yourself Attic Behind Hot Water Radiator Cathedral Ceiling Crawl Space Garage Door Knee Wall Radiant Floor �C Wood Joists Storage Building Unique Applications Wall �C Exterior (2 x 4) Wall �C Exterior (2 x 6) Wall �C Masonry Water Heater Wine Room Work Shop HVAC/R & Plumbing Contractor Attic Crawl Space Radiant Floor �C Wood Joists Water Heater Metal Buildings / Post Frame Buildings Roof Systems Wall Systems Pro Animal Confinement Attic Crawl Space Knee Wall Radiant Floor �C Wood Joists Wall �C Exterior (2 x 4) Wall �C Exterior (2 x 6) Wall �C Masonry Product Codes/Sizes: Specific applications within a category will contain Recommended Products that are best suited for a particular installation. Please refer to specific application webpages for this more detailed recommendation. Do-It-Yourself