Assuming that you have properly supported the cement board from behind with studs, and you attach it, this should not present any problems. So as long as the surface is relatively flat and is secure (i.e. doesn’t move) it will be fine.
How do you repair cement board?
Use thin-set mortar to repair cracks or holes in cement boards. Step 3: Mix up a small amount of thin-set mortar following the manufacturer’s instructions. Thin-set mortar typically has a working time of less than 15 minutes, so smaller batches are the way to go.
Does cement board need to be waterproofed?
Most concrete backer-boards on the market today are not water-resistant, but all are waterproof. Since many people confuse the terms, it is a common misconception that this is the best material for use inside a shower or tub area.
Does it matter which side cement board?
No, it doesn’t matter. Regardless of which side faces out during installation, you can expect the same great performance that has made USG Durock® Brand Cement Board the preferred choice of professionals and do-it-yourselfers for decades.
How do you fill gaps in backer board?
Use nails or screws as temporary spacers to create a 1/8-in. gap between sheets of cement board. When you squeeze the thin-set mortar into this gap, it will lock the two sheets together and strengthen the seam. Finally, leave extra clearance around each piece by deducting about 1/4 in.
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.
What can I use to waterproof cement board?
Quote from Youtube video: Use painters tape to protect the tub from the silicon and the waterproofing. Next fill the gaps between the cement board and the tub with silicone. Then allow it to dry before you begin the next.
How do you fill large gaps between cement boards?
Quote from the video:
Quote from Youtube video: I recommend that you get cement or tape mainly because it sticks to cement board better.
What do you do with a gap between tub and cement board?
The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area. Apply it to the wall with the bottom edge about 1/4 in. above the lip of the tub. Then apply a generous amount of thin-set to the bottom bathtub tile and position it 1/8 in.
Why do people tape cement board seams?
The thinset and mesh tape are to strengthen the seams. If you are going to tile over the cement board, you should tape the seams. This should not be that difficult. Pack in thinset, lay on the tape, and flat-knife to get it set in.
Can I use drywall mesh tape for cement board?
Although paper tape generally leads to a cleaner finish on drywall, you can still achieve a smooth look if you use mesh tape on a drywall/cement board joint. Use this self-adhesive joint tape where cement board and drywall meet. Never use paper drywall tape on cement board.
How do you fill gap between cement board and drywall?
Quote from the video:
Quote from Youtube video: Below and it'll explain what this is and everything like that. So what we want to do here is we want to actually want to use thinset because like i said we don't want to use drywall mud because it
Can you finish cement board like drywall?
Durock Cement Boards are a type of drywall reinforced with cement for a harder surface. This type of wall material can be finished just like ordinary drywall, using joint tape and joint compound.
Does joint compound adhere to 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.
Can I use durock instead of drywall?
Mold resistant drywall is exactly as it states. It’s mold resistant. It is made just like regular drywall except that is had more fiberglass in it and the paper has less organic product in it.
How do you seal concrete board seams in the shower?
Quote from the video:
Quote from Youtube video: You want to overlap the cement board tape with tap on one side of the joint. And the other half of the tape on the other side of the joint.
Can you tile over cement board in a shower?
Cement boards can be used in a shower because they can be exposed to water and moisture without warping, rotting, and deteriorating. It also does not promote the growth of molds and mildew. Cement boards are also a good substrate to use for tiles, which are commonly installed in showers as well.
