Mapei 2850930 Mapeguard UM 1/8 Inch Thick Uncoupling Crack Isolation and Waterproofing Membrane Underlayment Roll, 323 Sq Ft

Mapei Mapeguard UM 94285-30 is a thin, lightweight, and highly flexible premium flooring underlayment polypropylene membrane (floor mat), engineered for neutralizing tension, uncoupling membrane for tile, crack isolation, waterproofing characteristics, and vapor management solutions in ceramic tile and stone installations.

Designed for both commercial and residential flooring applications, this advanced underlayment solution provides enhanced durability and flexibility, effectively preventing tile cracking, delamination, and lateral stress from transferring to tile covering surfaces in bathrooms, kitchens, shower floors, steam rooms, laundry rooms, basements, living rooms, dining rooms, entryways, hallways, and other high-moisture areas. It is also ideal for commercial spaces such as hotels, restaurants, retail stores, office buildings, shopping malls, healthcare facilities, and industrial kitchens, providing long-lasting protection in high-traffic environments.

The tri-layered design of Mapeguard UM features a textured foil layer, backing fleece, and fiber reinforcement mesh, allowing it to absorb substrate movement and shear stress without transferring this force to the tile or stone flooring. This innovative premium infloor uncoupling layer compensates for differential movement in all directions, ensuring a strong and stable tile installation over plywood, OSB, wood, concrete, cement backer board, gypsum, and properly prepared tiled subfloors. The translucent structure allows for easy verification of adhesive thin-set mortar coverage, ensuring even bonding and a secure floor system.

Mapei uncoupling waterproofing and crack prevention membrane (underfloor mat) is ideal for use in your shower, bathroom tile, kitchen tile, hot tub surround and bathtub surround, laundry room, and living room floors.

Mapeguard tile underlayment membrane is suitable for ceramic tile, porcelain tile, vinyl tile, cement tile, granite tile, marble tile, travertine tile, slate tile, stone tile, limestone tile, sandstone tile, onyx tile, quartzite tile, mosaic tile, glass tile, concrete blocks, and linoleum tiles. It can be used in wet areas such as shower floors, steam rooms, hot tub surrounds, bathtub surrounds, laundry rooms, and living room floors, providing an effective waterproofing and crack prevention barrier that preserves the surface and integrity of the tile and grout.

This DIY-friendly flooring underlayment is easy to cut and install, reducing labor time while providing a seamless, professional finish. Designed for single-layer 3/4" (19 mm) plywood floors with joist spacing up to 19.2" (49 cm) on center, or double-layer plywood subfloors with joist spacing up to 24" (61 cm) on center, it is compatible with underfloor heating systems, ensuring energy-efficient radiant heat distribution and effective uncoupling and anti-fracture properties.

The Mapeguard UM Uncoupling Mat is highly resistant to chemicals and moisture infiltration, making it ideal for high-traffic flooring systems and demanding commercial environments. Available in a convenient 323 sq. ft. roll, this high-performance tile underlayment is a superior choice for home renovation, such as kitchen tile flooring and DIY home improvement projects, bathroom decor, kitchen decor, room decor, and other home decor needs. Whether used in new construction or remodeling projects, Mapeguard UM delivers long-lasting protection, superior waterproofing, and unparalleled crack isolation, ensuring a strong and durable flooring system for years to come.