---
product_id: 286291196
title: "Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft."
brand: "mapei"
price: "€ 1430.11"
currency: EUR
in_stock: true
reviews_count: 4
category: "Mapei"
url: https://www.desertcart.gr/products/286291196-mapeguard-um-underlayment-membrane-high-performance-ceramic-tile-porcelain-stone
store_origin: GR
region: Greece
---

# Lightweight & easy install Advanced waterproofing barrier Superior crack isolation Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft.

**Brand:** mapei
**Price:** € 1430.11
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your flooring game with MAPEI’s ultimate crack & waterproof shield!

## Quick Answers

- **What is this?** Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft. by mapei
- **How much does it cost?** € 1430.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/286291196-mapeguard-um-underlayment-membrane-high-performance-ceramic-tile-porcelain-stone)

## Best For

- mapei enthusiasts

## Why This Product

- Trusted mapei brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Moisture? No Problem:** Waterproof membrane perfect for bathrooms, kitchens, and showers—keep your floors flawless.
- • **Crack-Proof Confidence:** Protect your tile and stone from substrate cracks with industry-leading durability.
- • **Effortless Installation:** Lightweight design and easy cutting save you time and hassle on every job.
- • **Universal Compatibility:** Seamlessly adheres to concrete, plywood, and even existing tile for versatile project needs.
- • **Affordable Premium Quality:** Outperforms pricier competitors like Schluter without breaking your budget.

## Overview

MAPEI Mapeguard UM is a high-density polyethylene underlayment membrane covering 323 sq. ft., engineered to isolate cracks and waterproof ceramic, porcelain, and stone tile installations. Compatible with multiple substrates and designed for quick, glue-down installation, it offers professional-grade durability and moisture protection at an affordable price, making it a top choice for both residential and commercial flooring projects.

## Description

Superior Crack Isolation: Effectively protects ceramic tile, porcelain, and stone installations from substrate cracks, ensuring long-lasting durability. Advanced Waterproofing: Acts as a reliable barrier against moisture, making it ideal for wet areas such as bathrooms, kitchens, and showers. Versatile Application: Compatible with a variety of substrates, including concrete, plywood, and existing tile, for seamless installation.Lightweight and Easy to Install: Designed for quick and simple application, saving time and effort on both residential and commercial projects.Mapei Adhesives, Sealants, Chemical Products for Building that are Designed for Easy, Efficient Application

Review: Super quality product better than schluter and affordable price - I retiled about 1,000 square feet of my home and as a precaution I use this membrane over the entire floor because there were control joints in the concrete slab. I looked at other brands and I've actually worked with the schluter brand you know the orange stuff which I actually really do not enjoy working with. This product in my opinion surpasses the quality of the much more expensive schluter product. It was easy to work with, easy to cut and laid down flat. And a very affordable price!
Review: Water proof. - excellent quality mapei.ditra at a great price!

## Features

- Superior Crack Isolation: Effectively protects ceramic tile, porcelain, and stone installations from substrate cracks, ensuring long-lasting durability.
- Advanced Waterproofing: Acts as a reliable barrier against moisture, making it ideal for wet areas such as bathrooms, kitchens, and showers.
- Versatile Application: Compatible with a variety of substrates, including concrete, plywood, and existing tile, for seamless installation.
- Lightweight and Easy to Install: Designed for quick and simple application, saving time and effort on both residential and commercial projects.
- Mapei Adhesives, Sealants, Chemical Products for Building that are Designed for Easy, Efficient Application

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081VV5CVT |
| Best Sellers Rank | #328,477 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #106 in Flooring Underlayments |
| Brand | Mapei |
| Brand Name | Mapei |
| Color | Ligth Green |
| Customer Reviews | 5.0 out of 5 stars 11 Reviews |
| Finish Type | Uncoupling layer |
| Finish Types | Uncoupling layer |
| Installation Method | Glue Down |
| Manufacturer | MAPEI |
| Manufacturer Part Number | 2850930 |
| Material | High-density polyethylene (HDPE) |
| Material Type | High-density polyethylene (HDPE) |
| Model Number | ABC |
| Pattern | Solid |
| Size | 323 sq ft |
| Style | Industrial |
| Style Name | Industrial |
| UPC | 093994285034 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Mapei
- **Color:** Ligth Green
- **Finish Type:** Uncoupling layer
- **Installation Type:** Glue Down
- **Material:** High-density polyethylene (HDPE)
- **Pattern:** Solid
- **Size:** 323 sq ft
- **Style:** Industrial
- **Unit Count:** 1.0 Count
- **Water Resistance Level:** Waterproof

## Images

![Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft. - Image 1](https://m.media-amazon.com/images/I/71wmRHTcmeL.jpg)
![Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft. - Image 2](https://m.media-amazon.com/images/I/81v0LAwuYcL.jpg)
![Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft. - Image 3](https://m.media-amazon.com/images/I/81mEXKZWx8L.jpg)
![Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft. - Image 4](https://m.media-amazon.com/images/I/71YOsLHZjaL.jpg)
![Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft. - Image 5](https://m.media-amazon.com/images/I/818qeaHrgKL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Super quality product better than schluter and affordable price
*by J***E on December 11, 2025*

I retiled about 1,000 square feet of my home and as a precaution I use this membrane over the entire floor because there were control joints in the concrete slab. I looked at other brands and I've actually worked with the schluter brand you know the orange stuff which I actually really do not enjoy working with. This product in my opinion surpasses the quality of the much more expensive schluter product. It was easy to work with, easy to cut and laid down flat. And a very affordable price!

### ⭐⭐⭐⭐⭐ Water proof.
*by A***O on May 15, 2025*

excellent quality mapei.ditra at a great price!

### ⭐⭐⭐⭐⭐ First place!
*by B***T on February 9, 2025*

Hands down the best! I’ve been a tile and stone contractor for 30 plus years. This product has a fiberglass mesh over the top that does the following: more comfortable to work over, allows easier spreading for mortar, less memory than some of the other products. My personal favorite!

## Frequently Bought Together

- MAPEI Mapeguard UM Underlayment Membrane – High-Performance Ceramic Tile, Porcelain & Stone Crack-Isolation and Waterproofing Solution, 323 sq. ft.
- MAPEI Mapeguard ST Waterproofing Sealing Tape - 5.9inch x 98.4feet Roll

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-28*