Install a plastic corner bead where the drywall meets the backer board and plaster over it. (I’d probably solve this way) Install some matching chair-rail or bull nose tile that could hide your mistake. If your mud isn’t set yet, just remove the backer board from the wall and add some strapping behind it.

How do you transition from drywall to backer board?


Quote from Youtube video: I would apply thinset and alkali resistant mesh tape then tile over the seams onto the drywall.

How do you finish where cement board meets drywall?





To get a good seal on a seam between drywall and cement board, apply 2–3 coats of joint compound. Wait 24 hours between coats of joint compound to allow it to fully dry. For best results getting a good finish between cement board and drywall, use a setting-type joint compound.

How do you transition from tile to drywall?

Quote from the video:
Quote from Youtube video: So there's a couple ways to waterproof. This you can either use sheet membrane. Like this rss sheet membrane or kerdi. And you would just cover the transition. Like so up to the black sharpie. Line.

How do you blend 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

Should tile be flushed with drywall?

Tile and drywall is not supposed to be flush. Yours looks a little off because you have not put a row of bullnose tile to round into the drywall.

How do you hide uneven drywall?





Pour premixed drywall compound into a drywall tray and scoop some of the compound onto one side of a 12-inch drywall knife. Smear the compound into each valley on the drywall, smoothing it out with the knife where the new compound meets the existing drywall between valleys.

Does backer board go over drywall?

While it might sound like a good idea to install cement backer board over drywall before tiling the shower, the reality is that the drywall should be removed beforehand in most instances.

Should you tape cement board joints?

Quote from the video:
Quote from Youtube video: I recommend that you get cement or tape mainly because it sticks to cement board better.

How do you seal seam backer board?

Quote from the video:
Quote from Youtube video: This area right here what you wanna do is you want to take some of the thin set mortar you want to just put it on the teeth and then sweep it off so that you get a nice thin layer on the teeth.

How do you level a cement board wall?



Quote from the video:
Quote from Youtube video: With a sheetrock and the cement board met and it was quite a bit of a hump. There. And I really want to make sure that I make it straight. And you take that flat as flat as possible there.

Does cement board go over drywall?

(Some cement board products may not require the underlying membrane if the seams are properly waterproofed.) In such wet areas, never install cement board directly over drywall or green board. Instead, first, remove the existing surface material, then install the cement board over the studs and membrane, as applicable.

Do you tape and mud cement board?

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. In the corners, use a corner knife.

Should there be a gap between tile and wall?



Use caulk to fill a gap between tile and wall. In fact, where a tile floor meets a wall, there should be a 1/8 inch (6 mm) gap between the tile and the wall. This helps account for heat expansion and your house settling. If your tile is flush against the wall, a settling house can crack tiles or grout.

What should I put between drywall and tile?

The best product to use under tile in wet areas is cement board. This is similar to drywall in that it comes in sheets, but cement board will not develop mold or deteriorate when exposed to water.

Do you caulk where tile meets wall?

Caulk performs well in angled seams.



Grout is generally the best choice for filling joints between tiles in showers or elsewhere. but where two tiled shower walls meet, or where a shower wall meets the floor (called “change of plane”), waterproof silicone caulk (view example on Amazon) comes in mighty handy.

Can I use sanded caulk instead of grout?

Yes, there is a caulk that looks like grout. They are referred to as “sanded caulk.” They are, however, not supposed to replace the grout. You can only use sanded caulk in areas where grout may crack because it is not flexible but also if you need something that looks like grout.

Can you use caulk instead of grout between tiles?



Caulk is strong enough to adhere to tile surfaces without crevices. Caulk is flexible enough to adhere to two different materials such as glass and tile. Caulk may shrink or dry out over time, which is why it shouldn’t be used in large installations or as a replacement for grout.

Should you use grout or caulk in the corners?

It’s essential to use caulk, not grout, in shower corners. Grout does not hold up well in corners and is prone to cracking and falling out. This is because the tiles on the two perpendicular walls expand and contract with temperature changes.

What happens if you put grout on top of grout?

Benefits of Putting New Grout Over Old Grout



Putting new grout over old grout is not as complicated as a complete re-grout as it does not require the removal of the old grout. It can also strengthen the surface to increase water resistance and make it less susceptible to impurities.

Can I use silicone instead of grout?

Grout is a hardwearing emulsion but should only be used between joints of the same plane. This means any corners or bends that your tiles and fittings encounter should be handled with silicone instead. This is because grout is not flexible enough to withstand any structural movement. It is also not entirely waterproof.