FAQ - Granite - Marble- Ceramic - Backsplash - Porcelin

Our staff can help you with any of your questions about tile installation, but here are some of the ones we field most often.

Which tiles last the longest: porcelain or ceramic?

This is a very common question, as clients want their projects to stand the test of time. As you may know, porcelain is a kind of ceramic, which is considered denser than conventional clay ceramic. Advantages to ceramic tiles are that they often come in a wider variety of color concepts and are easy to cut, with regard to do-it-yourself projects (porcelain tiles require a wet saw to achieve clean cuts). Porcelain tiles are more moisture resistant and are less prone to chipping, but that's not to say low grade porcelain is any better than a high-grade ceramic, and we often dissuade our clients from relying too heavily on the two terms, as porcelain is simply one cut of ceramics. Instead, Keramin Joint-Stock Co. urges our clients to consider tiles based on durability and resistance to moisture. For example, high-quality class 4 ceramic tile is generally longer-lasting than a low-grade class 1 porcelain tile.

Can I use ceramic tiles on a poured concrete floor?
Yes. Depending on whether this is a residential or commercial project, and how much foot traffic your floor receives, try keeping in mind the PEI rating for the ceramic tiles. If the tiles you're looking at don't show a PEI rating, their durability may also be listed under "abrasion". You can use either ceramic or porcelain tiles on a poured concrete floor. If this is an outdoor project, exterior-grade porcelain may suit your needs better, as it's a bit more durable with a higher PEI rating than conventional ceramic tiles. Our specialists can help with the installation process, as poured concrete floors can often have cracks, and not be entirely level, which can lead to water pooling in certain low spots.

What is an impervious tile?
Tiles with an "impervious" rating are often used for exterior projects as they have extremely low moisture absorption rates (<0.5%); however, exterior tiles destined for harsh winters need to be frost-proof. Impervious porcelain tiles, which can be identified by a "through" color and will often say porcellanato on the back or box of the tiles, are frost-proof—with about six times the frost-resistance of a vitreous tile, which has only 0.5-3.0% water absorption—and are often used outdoors.

What is bull-nosing and how is it achieved?
Bullnose is the term used in the ceramics industry for a tile with a rounded trim. Think about your interior spaces: consider how hard tiles would be to clean or run your hand across if they were installed with sharp, straight edges. Bullnosing turns outer corners and edges into smooth, finished borders. They are often talked about in terms of adding a "quarter-bullnose" or a "half-bullnose". The latter is formed by two sections and a quarter-bullnose.

What is it when a tile is said to have a through body?
Tiles without glaze are referred to as having a "through body", this is because when a ceramic tile has a glaze, the body of the tile or "bisque" remains a different color.

We Install Tiles, Floor Tiles, More

Visit us now and enjoy 30% DISCOUNT on all tile prices as well as FREE DELIVERY across Toronto (with NO minimum purchase required).

Our showroom is located at:

4400 Dufferin Street, Unit B2, Toronto, Ontario, M3H 6A8, View Map on Google

Tel: +1.416.667.0101, Toll Free: 1.877.667.0107,

Email: office@keramin.ca, Share on Facebook