Ultimate Mapeguard Um Underlayment Membrane - 54 Sq. Ft. (5 M²) Roll Gift Ready [fBHGM5lR]

Mapeguard UM Underlayment Membrane - A Versatile Solution

Mapei's Mapeguard UM Underlayment Membrane is a game-changer for ceramic tile and stone installations. This lightweight uncoupling mat not only prevents substrate cracks from transmitting to the tiles or stones but also serves as a waterproofing and vapor-pressure-equalizing underlayment. Its versatility makes it suitable for both commercial and residential projects, even on challenging substrates like young concrete and single-layer plywood floors. With its unique tri-layered design, Mapeguard UM ensures exceptional bond maintenance while absorbing lateral stress from the substrate.

Key Features and Specifications

The Mapeguard UM Underlayment Membrane is packed with features that make it an ideal choice for any installation. It boasts dimensions of 39.4 in x 16.4 ft, providing ample coverage for a variety of projects. This membrane effectively prevents the transmission of in-plane substrate cracks up to 1/8" (3 mm), making it suitable for high-performance applications. Additionally, it is recommended for use with polymer-modified mortars and is Fast Track Ready, approved for use over young concrete and mortar beds. The membrane's engineered cavity design allows for easy single-pass filling of the surface core with less mortar, saving time and labor.

Applications and Suitable Substrates

Mapeguard UM Underlayment Membrane is a versatile solution that can be used in a wide range of applications. It is suitable for various substrates, including concrete, cement mortar beds, self-leveling underlayments, and approved backer units. This membrane is also ideal for radiant-heating applications, ensuring that your tiles or stones maintain their beauty and durability. With its uncoupling, waterproofing, and water vapor properties, Mapeguard UM is the perfect choice for both new installations and renovations. Its light green, translucent color makes it easy to see mortar coverage, while its reduced “roll memory” and unique tri-layer construction ensure a flat, even installation.