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Unread 01-26-2015, 10:48 PM   #1
Quad
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Fireplace surround

I'm installing Travertine Splitface Wall Tile for my fireplace surround and I have a few questions before I start.

http://www.lowes.ca/wall-tile/avenzo...inkloc=related

1)Can I install this directly to unpainted, unprimed drywall? I had to replace the drywall around the fireplace after removing the old tile.

2) Unmodified or modified thinset? what trowel size?

3)This is going to be just a flat vertical install, no corners. How should I finish the edges (covering the mortar on the sides, not so much the stone itself)
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Unread 01-27-2015, 09:31 AM   #2
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Jimmy, for your installation, we would typically recommend the following:
1) prime the drywall, with a primer such as our Eco Prim Grip Primer (with silica sand for "grip");
2) use a 2-part (latex + thinset) system, such as our GraniRapid; trowel size will vary (¼x¼ to ¼x3/8), i.e. whatever will allow you to achieve a minimum 80% coverage on the back of those tiles;
3) use some "tile edging" for those edges. Nowadays they're available in many different styles, sizes, colors, and material.

Eco Prim Grip Primer: http://www.mapei.com/public/US/produ...Grip_EN_lr.pdf
GraniRapid System: http://www.mapei.com/public/US/produ...stem_EN_lr.pdf

First, remember that all installations around a heat source should be installed according to any state and local fire and building codes that apply. Products best-suited for tile installations near a heat source are those that contain calcium aluminate and are known as refractory concretes. These mortars exhibit high mechanical performances at high temperatures, allowing rapid development of strength over a relatively short period of time. MAPEI thinsets that meet these criteria are: Granirapid System, Ultraflex RS
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Unread 01-27-2015, 09:47 AM   #3
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Jimmy, while I can't argue with Michael's logic, you don't indicate even what kind of fireplace you're dealing with nor where in relation to the firebox this drywall and tile installation will be.

If you've got drywall, I've gotta assume you're not in a high temperature area at all and would recommend you install your tiles directly to the new drywall with a good modified thinset mortar. Should not require any fancy primers (ECO Grip Prim is an interesting product, though) or special bonding mortars.

Tell us more about your application or, better yet, post a photo or two.

My opinion; worth price charged.
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Unread 01-27-2015, 11:27 AM   #4
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Thanks for the responses..

This is gas fireplace, the tile will just be covering about 13 sqft surrounding the fireplace. I will post pictures this evening when i get home.
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Unread 01-27-2015, 10:11 PM   #5
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Here are a couple of pics of the fireplace. That was the old tile.

Ignore my subpar tapping and mudding skills.

We are either outright replacing the metal pieces or spray painting them nickel or silver finish.
Attached Images
  
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Unread 01-30-2015, 02:56 PM   #6
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What size trowel should i use for this? These are 6 x 12 travertine ledge stone tiles. link above in my original post.

thanks.
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