Can You Tile Over Expansion Joints

Hairline cracks of up to 2mm in concrete should be bridged. For thin bed fixing of tiles the minimum finished thickness of the adhesive should not be less than 3mm.

Tile Talk March 2019 Movement Joints Creative Materials Corporation Expansion Joint Joint The Expanse

That is you need a joint in the SLC and soft joint in the tile over the concrete jointexcept when using NobleSeal the joint in the tile does not need to be directly over the SLCconcrete joint.

Can you tile over expansion joints. Let me explain why they are so important. If youre wondering why you need to include expansion joints when installing tile youve come to the right place. How to Install Ceramic Tile Over Elastomeric Membrane.

Elastomeric membranes are one of the most durable types of anti-fracture membrane systems that can be installed under a ceramic tile. The concrete control joint needs to be honored through to the top of finished tile. However depending on the tile size and system up to 14 movement is possible on the horizontal.

Every tile job needs expansion joints also known as movement joints they are critical to the success and longevity of the tile installation. The TCNA Handbook recommends allowing for expansion and contraction in every tile installation. If it is a true expansion joint tile should not bridge it.

I cant recall how many times people have told me they heard a loud crack in the night and when they investigated they found that a large area of their tiled floor had lifted an inch or two off the substrate beneath it. Also depending on the expansion joint width the edge of the tile is then also somewhat unsupported to resist breakage from loading at the edge especially if you are rolling a heavy item -. Otherwise the movement that those joints allow in the slab could carry up into the tile and compromise your installation.

Tiling over concrete is fine if its in good shape with no sealers or bond breakers on it. 18 movement with any sheet system typicallyand 116 with a few trowel-on systems. Bud Cline Tile Contracting Posted.

The short answer is that you do not span controlexpansion joints with the tile. When you place a tile next to a wall it should have a gap between it and the wall. Recognizing that tile is a facade movement joints are needed to eliminate stresses that can occur between the substrate and the tile due to differing amounts of expansion and contraction.

However running directly down the middle of it is a 1 wide expansion joint I assume I am correct in saying that it is an expansion joint - it is a sawedmanufactured joint that has a 1x2 insert of wood While the joint appears fairly level and the wood does not protrude I certainly dont think I can tile directly over it. For larger areas and tiles in outdoor areas joints should be planned around every 4 m as the expansion of the tiles can be even greater there than indoors due to higher temperature differences. Oct 29 2007.

When using stress-relieving joints on suspended floors they should be positioned over supporting walls and beams. Too many tile. Youre concrete either has expansion joints cold joints or control joints in it already- or it doesnt.

The joints of greatest concern are the expansion joints the ones that have a filler usually of fiberboard strips with seperate pours of concrete on either side. For perspective we originally published this article in August 2016 and expansion joints continue to come up in conversation during training sessions and also in comments. Where should movement joints be placed.

You can use either 100 silicone or urethane to caulk these movement joints. For additional protection expansion joints can be used in conjunction with an uncoupling matting or membrane. Click to see full answer.

Once youve ascertained that the slab is dry and level as possible your best solution to lay tile over concrete with expansion joints is shown below and linked here. What Surfaces Can You Tile On. In general the recommendation is to work in expansion joints vertically and horizontally at intervals of 3 to 6 m.

Sealant for movement joints. Put your expansion joint around the perimeter of the rooms you can hide it with timber skirting or tiled skirting used this method on 4 barn conversions a few years back it was in the architects spec and although it was the first time i did it i believe it worked fine trimline do all these expansion joints. The RedGard Uncoupling Mat covers small cracks in the concrete slab and eliminates the worry of installing over those expansion joints.

Control joints are there because its not a question of if the slab will crack but rather when. If there are joints in the concrete slab under the tile there needs to be an expansion joint in the concrete slab as well. How wide must an expansion joint be.

But lets qualify these joints first of all. If it is a saw cut or tooled joint there are membranes that allow tile to bride them. Wed Oct 8 2003 at 1214 am EDT Reply.

Bridge 11-23-2011 Expansion and Movement Joints in Tile Floors. Tile over expansion joint No membrane or installation system is designed to bridge any joint with verticle displacement. View more on it herePeople also ask can you tile over expansion joints.

Order the Schluter Dilex Expansion Joint online at Tile Fix Direct. Make a note of where your outdoor tile expansion joints will go when doing the patio layout. Tiling Over Concrete Expansion Joints If the concrete is stable and fully cured--you can tile over this but you need to provide a slip membrane beteen the concrete and the tile.

All the-powers-that-be want the joints honored it only makes sense. Two great products for this are Schluter Ditra comes in rolls and works very well over concrete or Laticrete blue 92. I think you might be more prone to between-tile grout joint cracking if they are located over the expansion joints.

Appropriate movement joints must be used and construction joints must not be tiled over. I would span the joints with the tile.

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