Can I use thinset on durock?

However, many manufacturers including, both Durock and Hardiebacker not only recommend that you use thinset under their backerboard, but they specify it and will void the warranty on their product if it's not used.

Can thinset be used on cement board?

Use thin-set mortar when installing cement backer board. Thin-set dries slowly, allowing you to fix and readjust backer board sheets as needed. The ingredients in thin-set mortar ingredients are cement, fine sand and a water retaining agent. It's used to bond ceramic or porcelain tile and cement backer board.

What mortar do I use with durock?

Apply latex-fortified mortar or Type 1 organic adhesive with a notched trowel. Hold trowel at an angle to maintain uniform thickness.

Can you tile directly over durock?

There is no need to install backer board on a concrete substrate—ceramic tile can be applied right over concrete, provided the surface is flat, smooth, and free of significant cracks.

Do I need to seal cement board before tiling?

Although most backerboards currently available won't fall apart when exposed to moisture and are somewhat water-resistant, they aren't waterproof. To prevent moisture from seeping through to the wood or metal studs beneath the tile, a barrier or sealant must be used on porous materials.

DUROCK Cement Board Do's and Dont's

Can you use drywall mud on durock?

This type of wall material can be finished just like ordinary drywall, using joint tape and joint compound. Joint compound is used to help provide a seal between the Durock panels and to fill the depressions left by either nails or screws during installation.

Is mortar the same as thinset?

Thinset, while it is also sometimes referred to as a “mortar” is an adhesive. It's a mix of cement, water, and fine sand. It holds your tile to the substrate and is used in commercial applications, “wet wall” applications (such as a shower floor), or with heavier tiling materials such as Ankara Travertine Stone Tile.

How do you seal durock seams?

Cut fiberglass mesh tape to fit in a single layer over every joint where the panels meet, but do not overlap the tape. It's OK if it's an inch or two short in spots. The tape is self-adhesive and will stick to the Durock panels. Press and smooth the tape firmly in place.

How thick should thinset be under durock?

1/4" USG Durock® cement board is an ideal substrate for floor and countertop ceramic tile installations. The 1/4" thickness helps eliminate transition trim when abutting carpet or wood flooring and minimize level variations with other finish materials.

What do you use to seal cement board seams?

Use special mesh tape on seams

Cover all of the corners, joints and seams, including the joint where drywall and cement board meet, with the fiberglass mesh tape.

How long does thinset take to dry on cement board?

Normally, dry times range from 12 to 24 hours. After this time the tile can install on the Hardie board.

Can I just screw down cement board?

Do not use drywall screws as they are not recommended to be used to hold the backer board in place. All of your backer board pieces should be cut before they are placed on​ the floor. Along the perimeter, screws should be installed at least ½ inch from the edge, but no more than 2 1/4 inches.

What's the difference between Type 1 and Type 2 thinset?

The titles of “Type 1” or “Type 2” are applied to adhesives used to glue wood. Type 1 is basically fully waterproof. Type 2 is water resistant. Both can also withstand a bit of heating without failure.

When should I use thinset?

When to Use Mortar. Thinset is appropriate for wall tiles as well as flooring in high-traffic, moisture-varying and temperature-varying areas, such as bathrooms and kitchens. The high bonding strength and resilience against both temperature change and moisture make thinset perfect for laying tile in most cases.

How thick can thinset be under tile?

Plan for a layer of thinset 3/16-inch to 1/8-inch thick beneath your tile. A 3/16-inch layer of thinset will be enough for tiles with a smooth back to bond the tile to the floor or backer board. For natural tiles with an uneven surface on the back, you may need to spread a 1/8-inch layer of thinset during installation.

Do you need to tape durock?

For tile backer boards such as Durock, Wonderboard, Hardiebacker, Permabase, and others the seams between the board need to be treated with 2-inch alkali-resistant mesh tape. Then a coat of thinset gets flat troweled over the seam. What this does is tie the two boards together and help prevent flexing.

Can I use drywall joint compound on cement board?

When using drywall compound over cement board, it is recommended, but not required, to use a faster setting-type joint compound (45 or 90 min), than typical joint compound. Make sure to follow manufacturer guidelines for the products used to finish the non-tiled area.

Do you need to use Redgard over cement board?

No, you don't need to apply Redgard over your Hardibacker. Here's why: Redgard works best on cement boards and plywood because it prevents water from seeping into those surfaces. It can also work on top of drywall that isn't behind a tub or shower, but it will eventually wear off after repeated moisture exposure.

Which side of durock faces out?

When installing USG Durock® Brand Cement Board Panels with EdgeGuard, does it matter which side faces out? No, it doesn't matter.

Can you tile over cement board in a shower?

There are several acceptable applications of cement board in the shower. All applications pair up the tile board with some kind of waterproofing material, whether a liquid membrane, plastic sheeting, an uncoupling membrane like Schluter Kerdi, or a board that is already faced with waterproofing.