Start at the bottom and work your way up. MAKE 100% SURE the fireplace opening is 100% parallel with the mantle. Before you start is the time to discover if the opening isn't straight and square — not after you laid most of the tile.
The mortar can then be smoothed onto the hearth with the flat edge of a v-notched trowel. The hearth should always be your starting point unless your project only involves tiling the fireplace surround. Use the notched side of the trowel to comb ridges into the mortar for improved tile grip.
Using a tape measure, take the width of the wall, and divide that by two to find the centre. Make a mark on wall. Then, using a vertical spirit level, line it up with the mark, and draw a line down the centre of the wall. This is your centreline – the line you will tile from.
If your recessed hearth isn't level, try using a self-levelling compound, but be aware that this may raise the level slightly. If there is left-over adhesive from the previous tiles, try using a grit rub block to smooth out the surface. Another option is to use backer board as a substrate for your hearth.
The fire code requires the fireplace hearth to be at least: 12 inches (wood-burning) or 6 inches (gas-burning) wide.
For a typical tile installation, tile fireplaces typically cost between $600 and $1,200. This cost includes setting materials, grout, and labor. The cost per square foot to tile a fireplace might range anywhere from $10 to $125 per square foot.
Hearth extensions shall extend not less than 16 inches (406 mm) in front of and not less than 8 inches (203 mm) beyond each side of the fireplace opening.
Using caulk, trim tile pieces and edging are three of the most popular and effective ways to finish tile edges. Caulking is the cheapest and easiest method for finishing tile edges.
While it might be tempting to any regular tile adhesive for a quick DIY project, it's not advisable for areas exposed to high heat. Regular tile adhesives can soften or deteriorate under extreme temperatures, leading to loose tiles or worse—potential fire hazards.
To get a perfectly square corner, you want to aim for a measurement ratio of 3:4:5. In other words, you want a three-foot length on your straight line, a four-foot length on your perpendicular line, and a five-foot length across. If all three measurements are correct, you'll have a perfectly square corner.
It's always advisable to start tiling your grid in the centre of the wall, as it's easier to make sure your pattern is symmetrical. It also means any half-tiles you may need can go at the end of each row and will be of matching size.
If you've selected a tile combination that has multiple sizes, the starting point should be the leftmost corner of the room. When tiling a backsplash, always start from the center of the wall. This gives your backsplash a more aesthetic look, and it keeps all the tiles even and symmetrical.
Tiling a hearth is a rewarding DIY project. Just gather your materials (tiles, heat resistant adhesive, spacers, heat resistant grout, etc.), clean and prep the surface, plan, arrange and apply the tiles, and let everything set. Finish with grout, and your new hearth tiles for fireplace will be ready to shine.
When you're building fireplaces, fire pits, ovens, or any other high-temperature project, High-Heat Mortar is your mix. Formulated to withstand temperatures up to 2550°F, this high-strength, highly workable mix is perfect for setting fire brick, clay masonry or as a parge coat.
“The 1/3 offset tile pattern is installed where the edge of the tile is shifted by a third in each row, rather than a half, which is found in a traditional brick lay pattern,” Becca says.
Begin laying tile in the center of the room and work your way out. Lay a single row of tiles in both directions without mortar. Start at the center point and work outward. This dry layout will make sure your finished project will be centered.
“Center and balance areas of tile, if possible.”
This language directs the installer to provide a layout where the tile on the left is the same size of the cut on the right. Similarly, the cuts at the bottom of the installation should be the same size as the cuts at the top. This sounds simple and it should be.
Essential Tools and Materials for Tiling a Hearth
You must also consider local building codes. Typically, the hearth must extend at least 16 inches in front of the firebox and 8 inches on either side. This keeps your floor protected and helps prevent fire hazards.
Caulk The Edge
Materials like glass tumbled stone, and porcelain has naturally-finished edges that may not require a separate edge piece to integrate or create a polished and cohesive look. So, in such a case, all you have to ensure is to edge the tile to the end and simply caulk the edges.
2. Leave Room For Your Fireplace Surround. Regardless of how small you go with your fireplace opening width, don't forget about the surround. When you envision the design of your fireplace, be sure to add 12 to 24 inches on either side of the fireplace for a surround.
Can I use a tile for a fireplace hearth? Yes, you can use a porcelain tile for a fireplace as long as the tile is 20mm thick.
In fireplace design, the hearth is the part of the fireplace where the fire burns, usually consisting of fire brick masonry at floor level or higher, underneath the fireplace mantel.