GoBoard® by Johns Manville is an ultra-lightweight, waterproof, durable tile backer board that is easy to cut and install, and weighs up to 85% lighter than traditional cement boards allowing for same-day tile. GoBoard is engineered and tested for strength and durability, yet can be cut right where it's installed using a standard utility knife with minimal dust. The GoBoard product line includes Polyiso foam board panels, a versatile shower pan kit, and essential tile backer accessories that when installed as a system, can qualify for a manufacturer limited warranty.
NFPA 285 Continuous Insulation
NFPA 285 Continuous Insulation: README - NFPA Table and Details
Material Library: Johns Manville