Mapei
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MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
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MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
Effectively protects ceramic tile, porcelain, and stone installations from substrate cracks, ensuring long-lasting durability.
MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.
Item #: 253678439

MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft.

85% of respondents would recommend this to a friend

Item #: 253678439

XCD 339

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Effectively protects ceramic tile, porcelain, and stone installations from substrate cracks, ensuring long-lasting durability.
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Product Details

Shop MAPEI Mapeguard UM Underlayment Membrane High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 54 sq. ft. online at a best price in Montserrat. B081VTDFJV
Size54 sq ft
Unit Count1 Count
Brand NameMapei
UPC093994285058
ManufacturerMAPEI
Model NumberABC
Manufacturer Part Number2858905
ColorLigth Green
Finish TypesUncoupling layer
Style NameClassic
Edge TypeSquare Edge
Water Resistance LevelWaterproof
Installation MethodGlue Down
Material TypeHigh-density polyethylene (HDPE)
BrandMapei
MaterialHigh-density polyethylene (HDPE)
Finish TypeUncoupling layer
StyleClassic
Installation TypeGlue Down
Edge StyleSquare Edge
Item Weight6 lbs (2.72 kg)

Product Description

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Customer Questions & Answers

  • Question: What is MAPEI Mapeguard UM Underlayment Membrane used for?

    Answer: MAPEI Mapeguard UM Underlayment Membrane is primarily designed for crack isolation and waterproofing, making it ideal for ceramic tile, porcelain, and stone installations. By using this membrane, you can effectively protect your flooring from damage due to cracks in the substrate, ensuring longevity and durability. It's especially beneficial in areas prone to moisture, such as bathrooms or kitchens, where water exposure is common.
  • Question: How does the MAPEI Mapeguard UM provide waterproofing?

    Answer: The MAPEI Mapeguard UM Achieves waterproofing through its advanced polymer formulation that creates a seamless barrier against water infiltration. This property is crucial in preventing damage to underlying structures and floors from moisture buildup. You can use it in areas like basements or shower stalls, providing peace of mind while knowing your tiled surfaces are protected.
  • Question: Can MAPEI Mapeguard UM be used on all types of subfloors?

    Answer: MAPEI Mapeguard UM is versatile and can be used with various subfloors, including concrete and plywood. However, it’s essential to ensure that the surface is clean, dry, and structurally sound before application. This flexibility makes it an excellent choice for renovations or new builds, giving you broad options depending on your specific flooring project needs.
  • Question: Is MAPEI Mapeguard UM suitable for radiant heating systems?

    Answer: Yes, MAPEI Mapeguard UM can be used over radiant heating systems. Its thermal resistance properties allow for optimal heat transfer, which helps in maintaining energy efficiency. When installing tile over heated surfaces, using this underlayment ensures that heat is distributed evenly, enhancing your comfort while enjoying your flooring aesthetics.
  • Question: How thick is the MAPEI Mapeguard UM membrane?

    Answer: The MAPEI Mapeguard UM membrane is approximately 1/8 inch thick, offering a balance between effective crack isolation and a low profile for a finished floor. This thickness ensures that you have sufficient protection while fitting snugly under your final flooring. It's particularly useful when transitioning between different flooring levels in rooms, maintaining a cohesive look.
  • Question: Can I use MAPEI Mapeguard UM outdoors?

    Answer: MAPEI Mapeguard UM is intended for interior applications. For outdoor projects, it's advisable to look for a product specifically designed for external use, as outdoor conditions can pose unique challenges like temperature fluctuations and moisture exposure. However, for confined outdoor spaces like covered porches, it may be considered with caution towards moisture management.
  • Question: What types of tiles can be installed over MAPEI Mapeguard UM?

    Answer: You can install a variety of tile types over MAPEI Mapeguard UM, including ceramic, porcelain, and natural stone. Its compatibility with these materials makes it an excellent choice for diverse flooring designs. When selecting tiles, you can consider aesthetics alongside their performance, knowing that your underlayment is designed to support the longevity of all these options.
  • Question: How do you apply the MAPEI Mapeguard UM membrane?

    Answer: Applying the MAPEI Mapeguard UM membrane involves preparing the subfloor, mixing the adhesive if needed, and then laying out the membrane according to the manufacturer's instructions. Proper application is critical for achieving the expected results, including waterproofing and crack isolation. Following these steps will help ensure that your flooring adheres properly and performs efficiently.
  • Question: Where can I buy MAPEI Mapeguard UM Underlayment Membrane in Montserrat?

    Answer: You can purchase MAPEI Mapeguard UM Underlayment Membrane from Ubuy, a trusted e-commerce platform that offers a wide range of building materials, including high-quality underlayment products. Ubuy provides a convenient shopping experience, allowing you to find the right solutions for your flooring projects with just a few clicks.
  • Question: What are the benefits of using crack-isolation membranes like MAPEI Mapeguard UM?

    Answer: Utilizing crack-isolation membranes like MAPEI Mapeguard UM can significantly extend the life of your flooring by preventing cracks in the substrate from transferring to the finished surface. This leads to fewer repairs and replacement costs in the long run. Especially in areas with heavy foot traffic or fluctuating temperatures, a crack-isolation membrane becomes essential for maintaining a beautiful, functional flooring solution.

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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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XCD 339

Order now and get it around Wednesday, September 30

QTY:

Only 18 items left in stock.
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Fastest cross-border delivery

Features & Benefits

  • Superior crack isolation protects various tile installations.
  • Advanced waterproofing ensures moisture barrier for wet areas.
  • Versatile application compatible with multiple substrates.
  • Lightweight design facilitates quick and easy installation.
  • Ideal for both residential and commercial projects.
  • Mapei products are engineered for efficiency and effectiveness.

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