How do you transition from Hardibacker to drywall?

Quote from the video:
Quote from Youtube video: So but like i said we're going to go ahead and come over with our thin thinset. Smooth this down. And then we'll cover it with mesh tape.

How much space should be between wall and backer board?





1/4-inch

Lay the Backer Board Sheets



Leave a 1/4-inch gap between the backer board and the wall. Leave a 1/8-inch gap between each backer board sheet. The corners and edges of the sheets should not touch one another.

Does drywall go behind cement board?

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.

How do you transition from drywall to tile backer?

Drywall and Cement Board Transitions



You want the joint to be able to stand up to moisture, so you should use fiberglass tape instead of paper, and you should apply at least one coat of mortar. However, mortar is too coarse to finish the drywall side of the transition.

How do you finish joint between cement board and drywall?





For best results getting a good finish between cement board and drywall, use a setting-type joint compound. This product produces a better finish over mesh tape than all-purpose joint compound. Apply 2–3 coats of joint compound to the seam between wall boards. Wait at least 24 hours between coats of joint compound.

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.

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.

Can you use drywall mud on Hardibacker?

HardieBacker 500 cement board is 0.42 inches thick, slightly less than true 1/2 inch thickness. 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.

How do you finish drywall where you meet the shower?



Quote from the video:
Quote from Youtube video: And then run it over the top and run it up against the top not a bad option the other option of course is to just mud it and then run mesh tape over the top mud it again with a skim coat and sand it.

How do you waterproof drywall above a shower?

Quote from the video:
Quote from Youtube video: Using an unmodified thinset. And kerdi-band. Or you can use looters all set but we highly recommend using an unmodified or all set and nothing else here we're just adding the mixing valve seal.

Does drywall go over the tub flange?

If so, you’ve come to the right place. We’ve done the research to provide you with the answers you need to install your bathtub properly. Whether backer board or drywall, your surround material should rest on the edge of the tub flange but should not make contact with the lip.

Do you need green board behind shower surround?



Paper-faced gypsum board will not prevent moisture penetration and should not be used in wet areas (BSC 2009a). Non-paper-faced fiber-reinforced gypsum board, moisture-resistant gypsum board, or “green board” products are also not recommended behind tub surrounds (BSC 2009a).

Is a vapor barrier necessary behind cement board?

There are several kinds of backer boards. If it’s a cement board, you need a vapor barrier, because cement retains moisture, which means the wood next to it is always damp.

Can you put Redgard over Greenboard?

Put the green board up, coat it with redgard, stick on your tiles. The water will just wick to the other areas not covered in redgard or get behind the green board and leak somewhere else. You will be doing versions of the same thing over and over, you will have mold issues, tiles will fall off.

Is it OK to tile over Greenboard?

Never tile over green board in a shower—green board is not waterproof enough to be used for shower walls. Green board can be used as a tile backing in kitchens and bathrooms (excluding shower walls). Never tile directly onto green board that has not been painted with sealer.

Will Thinset stick to Greenboard?



In addition to blueboard, greenboard (named for the color of their backing) cement and fiberglass Sheetrock, there are several other kinds, and thinset adheres to any of them.

Should you prime green board before tiling?

Greenboard has a waxy surface that makes it difficult to get tiles to adhere to it. One solution is to coat it first in a layer of Kilz or other flat sealing primer, which will stick to the board while providing a suitable surface to hold the tile.