Mapeguard Board is a multipurpose, premium-performance, lightweight, rigid, waterproof backer-board panel that is made with a high-density, extruded polystyrene core. This backer board features a high-strength, waterproof membrane and facer on both sides to provide water and vapor protection. Mapeguard Board is for use under ceramic tile and stone installations for both residential and commercial interior applications. The uniquely engineered, multi-layered design is available in thicknesses from 1/4" to 2" (6 mm to 5 cm) for use on walls, floors, ceilings and countertops, as well as for fabrication of room partitions, benches, seats and furnishing elements, delivering a dimensionally stable substrate.
Attaches to wood or metal framing
Lifetime system warranty when combined with other qualifying products
Coated with a superior-performing waterproof membrane and facer
Low perm rating; approved for use in steam rooms and showers
Tab washers not required on floors and walls
Easy to cut with a standard utility knife without mess
Technical Data Sheet
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