CTEF Blog - About Tile Education and Installer Certification

Glass tile has truly captured the hearts of consumers in both the residential and commercial marketplaces, making it important for tile installers to understand how to avoid trowel ridges and marks that are visible through translucent glass tile.

Do you know the proper technique?

Perhaps it seems self-evident that the tile patterns you select need to be balanced when installed. And yet, simply based on photos readily available, balance and common sense don't always go hand-in-hand.

Especially when your tile choices come in so many more sizes, shapes, patterns, and colors than in the past.  Along with this availability comes creativity with endless possibilities.

Today we will focus on one of these options – the pattern.  Combining these tiles, whether square or rectangular, with an offset pattern creates a unique visual many times not realized in its square or stacked design.

If you think that warped tile isn't acceptable, we're here to help you understand what is and what isn't acceptable. You see, there are two categories to consider: inherent (actual) warpage and excessive warpage.

Actual warpage is a function of the tile manufacturing process. It's something qualified tile installers and Certified Tile Installers take into consideration.

Excessive warpage may indicate a bigger issue.

Have you encountered situations where a tile installation called for a 50% offset and credit card grout joints? And, then, once installed, did it lead to lippage problems, misaligned grout joints, and/or an unhappy customer?

I'm pleased to inform you that you can officially find guidance and justification for avoiding a 50% offset in the TCNA Handbook.

Ready to learn more?

Wood plank tile: it's beautiful and offers so many advantages over hardwood floors. What kind of grout joint offsets should you work with?

Have you encountered tile discoloration in a shower?

Showers tend to be harsh environments because they are inherently and intensely wet. They also tend not to be forgiving of uninformed installations. That's why employing Certified Tile Installers is so important. They know to anticipate situations such as tile discoloration in a shower because they take very seriously the TCNA Handbook, the ANSI Standards, and manufacturer instructions.

How do you deal with expansion joints in an installation that is non-linear? You can't ignore them or you'll wind up with a nasty surprise. You can't necessarily change your tile layout so your movement joint is linear. So what can you do?

What does it take to ensure that you have a quality tile installation? Based on our experience, knowledge, and work with the Tile Council of North America (TCNA) Handbook, we have identified ten requirements. 

Note that these aren't all industry requirements. However, they all contribute to a quality tile installation.

Here they are.

If you're installing large format glass tile (per ANSI A137.2, any tile larger than 3” x 3” or nine square inches) in a shower, do you know what steps to follow and questions to ask? As mentioned in previous articles, installing tile in showers requires careful preparation given the extreme environment working showers create. Large glass tile can add to the complexity.

>> See How to Deal with Tile Discoloration in a Shower

In this article, NTCA Technical Trainer Mark Heinlein CTI #1112 shares his advice on how to prepare for this project which involves 3x12 glass tile (aka subway tile) which is considered a large format for glass.

Happy New Year! Are you ready to make tile installation resolutions for 2025?

If you're already in the know, consider these resolutions a refresher. And, if you're new to the Ceramic Tile Education Foundation and the Certified Tile Installer Program, here's your introduction to a bold, new standards-based, methodical approach to installing ceramic tile.