Currently Reading

Pro's Picks: RedGard Waterproofing and Crack Prevention Membrane


Pro's Picks: RedGard Waterproofing and Crack Prevention Membrane

This Pro's Pick ensures a watertight tile installs

August 11, 2022
redgard waterproofing membrane
Photo courtesy Custom Building Products
This article first appeared in the July/August 2022 issue of Pro Remodeler.

lee morganLee Morgan

Lee Morgan Construction / Dallas

RedGard Waterproofing and Crack Prevention Membrane


I actually found out about RedGard on YouTube, and I’ve been using it for a few years now. It’s a protective membrane that you apply on top of backerboard and under tile.

It works to prevent the cracks that can happen in large format tile and stone when the surface underneath moves, and it also works for waterproofing. You need one coat to stop cracking and two coats for water protection. I mostly use it in showers.

I’ve only tried RedGard for wall tile, but it also works for waterproofing your shower pans if you don’t want to use a regular pan membrane. I find that RedGard is an easy product to handle, but you should know that it sticks to everything, even your eyebrows. If you spill any though, it will peel off right after it dries. This is basically liquid rubber.

Before putting it on, you need to seal any openings in your backerboard with mortar. You also need to tape all of the corners and seams prior to applying the RedGard. The company sells a fiberglass mesh tape that I use for this.

RedGard goes on with a brush, roller, or a trowel, but I personally prefer a trowel. When it’s dry, the color will change from a bright pink to red, which is another thing I like because it’s really obvious. One coat takes about an hour to dry, and like I said, you need two coats to get the full waterproofing effect.

RedGard shrinks a little when it dries, so before starting to tile, I like to check the corners and seams just to make sure I have full coverage. You apply thinset and tile right on top of the RedGard after it dries.


Add new comment

Plain text

  • No HTML tags allowed.
  • Web page addresses and email addresses turn into links automatically.
  • Lines and paragraphs break automatically.

Related Stories

Pro's Picks: An Affordable, Reactive Project Management Tool

This pro recommends an automated scheduling system that works for teams of all sizes 

An AI-Powered Collaboration Platform for Construction

Digs promises to eliminate client and team frustrations through enhanced communication

Pro's Picks: A Real-Time Project Communication and Management Tool

This remodeler says this product allows for easy, quick, real-time communication with team members in the field and in the office

This New Tech Turns Any Countertop into a Wireless Charger

FreePower for Countertop has swept awards for its innovation—and the company claims installing it is "as straightforward as cutting a sink"

Pro's Picks: A Quick Install Composite Stone

This pro completed a high volume facelift project months ahead of schedule

Pella's New Debut Promises Faster, One-Person Window Installs

The window manufacturer promises 3.15x faster installation with its Steady Set system

Marvin Releases Switchable Privacy Glass Window

The privacy glass windows can be purchased from Marvin's Direct Glaze windows

Innovative Products: Window Shades That Create Natural Light

Wait, shouldn't window shades keep light out?

New Insulation Innovation Reshapes Our Thinking of Refrigeration

Whirlpool Corporation's latest innovation allows refrigerators to do more and be more

4 AI Tools for the Content Creating Contractor

Let artificial intelligence do the work


More in Category