Frequently Asked Questions - Terrazzo Installation Experts ...

06 May.,2024

 

Frequently Asked Questions - Terrazzo Installation Experts ...

Terrazzo Frequently Asked Questions

Please contact us or call (800) 557-0833 if you have any questions you do not see answered below.

Click here to get more.

What is terrazzo?

“Terrazzo consists of marble, granite, onyx, or glass chips in Portland Cement, polyacrylate modified Portland Cement, or resinous matrix binder. The Terrazzo is poured, cured, ground, and polished. Terrazzo is typically used as a finish for floors, stairs or walls.”
— The National Terrazzo & Mosaic Association

What is the typical thickness of terrazzo flooring?

Epoxy terrazzo can be poured at a thickness of 3/8” or as little as ¼” thick. Cement terrazzo requires a minimum depth of 2 1/2″ including setting bed.

What if my concrete subfloor has cracking?

If there is cracks on the concrete subfloor, a crack suppression membrane with an embedded fiberglass mesh can be installed to alleviate any horizontal cracking.

Can you install custom terrazzo colors?

Yes, terrazzo can be a very customizable floor with almost any color available to choose from.

Can I choose the glass or marble that goes in the terrazzo?

Yes, one of the great features of terrazzo is the ability to customize it. We can help you pick from different marble or glass pieces to fit your preferences. Give us a call (800) 557-0833 or contact us to schedule an appointment at our showroom.

Do you do project walks and onsite estimates

Yes, give our office a call (800) 557-0833 or contact us to schedule an appointment.

How should I clean my terrazzo floor?

Use a scrubbing machine with a 16” to 20” diameter brush. Place a soft-type pad on the brush to aid in holding a 3M-type screen mesh pad. It should be emphasized that these mesh pads should only be used two or three times annually.

The grit of the screen mesh pad can be one of the following: #60, #80 or #100. (The lower the number the coarser the grit.)

Using a neutral cleaner and water as lubrication, scrub the floor surface. After several passes in different directions, you should recognize the removal of all foreign matter from the surface. The cleaning cycle program should be regulated by the amount of foot traffic.

As the terrazzo floor ages the maintenance requirements are lessened.

Are samples available upon request?

Standard samples are not available as each job is a custom order to your specifications. Slight color variations in chips occur depending on geographical areas in which they were obtained. It is recommended that a sample, per your specific project, be requested for final color approval.

Where can I use terrazzo?

Terrazzo is used in both interior and exterior applications. Portland Cement and Polyacrylate Matrix Terrazzo can be used for both interior and exterior applications, however. Epoxy Resin Matrix Terrazzo is not recommended for exterior use.

When optimum slip-resistance is desired for an exterior Terrazzo surface, Rustic or Acid Washed Portland Cement Terrazzo can be used. After grinding and before final polishing and sealing, a mild acid solution is applied t hat will dissolve the Portland Cement matrix until neutralized. This process leaves a slight depression in the matrix causing the marble chip surface to protrude slightly and provide the added slip-resistance. Upon final sealing, the Terrazzo appearance is similar to polished Terrazzo without high gloss.

What are terrazzo types advantages and limitations?

Portland Cement Sand Cushion & Bonded Acid Washed Terrazzo

Advantages

  • Can be used for interior or exterior use
  • Can be acid washed for added slip resistance in exterior use
  • Topping thickness will accommodate the largest (#7) chip size
  • Is breathable and not affected by moisture vapor transmission
  • Sand Cushion system can accommodate substrate defects

Limitations

  • Requires minimum 2” depression for system installation
  • Vibrant colors are very limited with Portland Cement
  • Glass chips have limited use in Portland Cement
  • Design flexibility due to size of panel limitations
  • Lengthy cure time to achieve final appearance

Epoxy Resin Matrix Terrazzo

Zhouxing contains other products and information you need, so please check it out.

Advantages

  • System thickness of 3/8” total, can be used over concrete or wood substrate
  • Virtually unlimited range of vibrant colors available
  • Glass chips can be used in epoxy resin Terrazzo
  • Design flexibility due to minimal divider strip requirements Accelerated chemical cure allows for faster installation due to significantly decreased cure time prior to grinding
  • Color uniformity on large installations due to sophisticated manufacturing process for resin
  • Most cost effective system for interior use

Limitations

  • 3/8” total thickness requires high flatness tolerance of ¼” per 10 sq.ft. in the substrate.
  • Not recommended for exterior use.
  • System not breathable, moisture vapor transmission barrier may be required for slab on grade applications.
  • Maximum chip size that can be used is #2.

Polyacrylate Modified Cement Terrazzo

Advantages

  • System thickness of ½” total, can be used over wood substrate.
  • Glass chips can be used in polyacrylate matrix Terrazzo.
  • Can be used for exterior applications.
  • System is breathable and not affect ed by moisture vapor transmission.
  • Can be acid-washed for added slip resistance in exterior applications

Limitations

  • ½” total thickness requires hi gh flatness tolerance of ¼” per 10 sq.ft. in the substrate.
  • The most vibrant colors cannot be achieved with polyacrylate matrix.
  • Maximum chip size that can be used is #2.

Where to Buy Terrazzo Tile

I’m ordering materials for a bathroom update (see our finished, terrazzo-ed bathroom here) and, while I’m cheaping out on some parts, terrazzo flooring is a non-negotiable. Terrazzo, a traditional Italian flooring originally created to utilize remnant marble and glass chips, consists of a concrete base mixed with various aggregates all polished down to reveal cut sections of stone, glass, and more. It gained popularity in the US in the mid 20th century as a durable flooring option for commercial spaces (lobbies! airports! department stores!) and was used in some forward-thinking modern homes as well. It is making a comeback today, this time with notably louder and larger patterns. I’m guessing most of you though, like me, are after that classic mid century terrazzo look featuring smaller rock aggregate and earthy colors. Mid century terrazzo floors were most often poured and polished in place, but if you are working on a raised foundation and want a cheaper, DIY-friendly install, terrazzo tiles can make those terrazzo dreams come true!

Here is a quick reference list of the terrazzo tile sources I’ve found within the US…

Cle Tile – A very classic 60’s looking terrazzo, with small round aggregate and neutral colors. These ship from Southern CA:

Concrete Collaborative – One of the OG companies of today’s terrazzo revival, selling both tile and slab, with showrooms in several cities across the US.

Eso Surfaces – Beautiful terrazzo tiles and slabs featuring bold colors and chunky patterns. Endless options in rainbow colors, including yellow and aqua! They do custom orders (and sell breeze blocks too). Located in Southern CA.

True Terrazzo / Ivy Hill – Several online sites, including Wayfair, Home Depot, and Tile Bar sell this terrazzo under different names (I can confirm from samples that they are all the same terrazzo and we personally ordered our bathroom floor terrazzo from Home Depot – the black and white!). Small chip aggregate in jagged shapes. Some great options at a great price, with low flat rate shipping:

Riad Tile – Three great tile options, including a black with white chip. Showrooms in TX.

Wausau Tile – The best price I have found and a huge selection, with an especially amazing sale section if you only need a small quantity! Located in WI.

Costco via Korel Tile – Random, but Costco sells tile online and they have a few random terrazzo options for a great price featuring stone, glass, mirror, and even shell aggregate. These are very polished, with a glossier finish than the others on this list:

Notes:

I’ve found tile prices range from around $7-$15/sq ft, cheaper if you can find seconds or remnant sales.

Shipping can be as expensive as your tile order so factor that in. While some suppliers offer low flat rate shipping (Home Depot is free if you ship to your local store), others charge actual freight. To give you an idea, a quote from Wausau to ship 150 sq. ft. of tiles from WI to CA was around $400.

Beware of printed terrazzo patterns on porcelain, often called “terrazzo look” tile. True terrazzo will be concrete.

Terrazzo may need to be sealed depending on use so pay attention to the manufacturers instruction.

Terrazzo can be used on shower walls, but it is generally too slippery for shower floors as is. However, tiles can be cut down into smaller pieces, grooved, or given an anti-slip coating to meet correct COF for shower floors. Notice the difference in sheen of the tiles below:Wishing all of us well on our terrazzo journeys!

This post contains affiliate links, which means that I may receive modest compensation from purchases made through certain product links. See here for more information and thank you so much for supporting my weirdo hobby blog!

Share this:

Like

Loading...

For more information, please visit custom terrazzo slab.