USG UltraLight Foam Backerboard




USG UltraLight Foam Backerboard is a lightweight and fully waterproofed alternative to cement board. Ultralight Foam Backerboard decreases time spent on jobs. It’s light weight makes installation easy and efficient. No washers are necessary with this installation and it is a perfect pairing with USG Shower Kits. Each backerboard sheet is covered in the USG Waterproofing Membrane and requires each seam to be covered by the USG Waterproofing Band. Each sheet is 3′ x 5′ with a 1/2″ thickness. Ultralight Foam Backerboard can be cut to custom shapes and sizes along with making areas for a USG Shower Niche. USG Sealant is also recommended when installing UltraLight Foam Backerboard. Simply take USG Sealant and cover any screw heads to ensure a proper water tight and water proof application. There is no need for any other top coats, you can tile directly on the board. See manufacturers installation guide for proper installation. Failure of proper installation can lead to water under waterproofing membrane, water leaks, mold, and complete demolition of shower and surrounding areas.



  • Lightweight
  • Waterproof
  • Vapor Retardant
  • Ideal for wet areas including steam showers
  • Thermoplastic Facing and Backing
  • Foam Core
  • No washers necessary in installation
  • 10 Year Limited Warranty


Available in Quantities of: 

  • 7 pcs
  • 50 pcs – pallet

Additional information


7 pc, 50 pc (Pallet)


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