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Minimum Grout Lines

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Minimum Grout lines

The quick answer is nothing closer than 1/16. If you want to know why please keep reading.

When re-modeling floors, bathroom or a kitchen almost everybody wants to have the minimum grout lines between their tiles. Some even want to install their tiles with no grout at all.

Since this is what all customer request from the installer, most installers, and contractors find pride in very close grout lines and they consider it a sign of a high-quality job. Only a few who can separate the look from the longevity would say: No! Tiles cannot be put too close.

Before we go ahead and explain, let’s see the definition of grout.

What is Grout?

According to Merriam-Webster, Grout is a thin mortar used for filling spaces (such as the joints in masonry)

We need to fill the space between tiles to prevent any liquid from sipping through the tiles and to avoid humidity that will eventually cause mold and mildew.

Installation With No Grout

Today car keys are little electronic remote controllers that function with battery. They are designed air-thigh to keep the dust out.

A little ago, I had to change my car key’s battery. When I popped it open, I was amazed by the amount of dust I found inside of it.

When we install with no grout, tiles are not airtight, and they are in direct contact with water.

Can you Imagine if In three year’s time a significant amount of dust from the air can get into an airtight car remote, how much water will go to the underneath the tiles that are not air-tight?

When the water gets underneath, it causes humidity. Then, the humidity creates mold and mildew.

If you bought marble, limestone, travertine or any sort of natural stone installed with no grout, your stone most likely has changed color. It didn’t happen because natural stone is bad. It simply happened because of mold and mildew created by the excessive amount of humidity underneath your tiles.

What’s the minimum grout lines for installation?

Every manufacturer recommends 5/64″

Closest grout joints should not be less than 1/16″. This is an acceptable space that can be properly grouted. When the space between tiles is so little like 1/32″  which is often referred to as “credit card lines” or “penny lines”, it’s not possible to fill that space all the way through the bottom of the tile. In such a case, grout pops up leaving little holes in your floor.

Today, there are high-tech grout types that don’t stain and clean easy. Besides, we are able to choose a similar gout color to our tile that won’t be noticeable.

If this is not enough and you insist on having a very little seam, the proper way to reduce the seam is to use a tile larger than 24″x24″. Not eliminating the grout that protects your floors.

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