What do you use to fill joints on backer board?
Quote from the video:
Quote from Youtube video: One of these corner trials it works very well to reinforce the joints perma based recommends using their 2-inch perma base mesh tape.
How do you fill gap 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.
How do you seal concrete board seams in the shower?
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.
Can you put joint compound over 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.
Should you tape cement board joints?
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.
How do you seal seams on backer board?
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 install cement board over drywall?
You should never put a cement board over drywall because water can go through them. Drywalls have poor water resistance and can get mold problems easily. That’s why it’s best not to use them in showers.
How much space should be between cement board and wall?
1/4-inch
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.
Can you glue cement board to 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.
What mud do I use for cement board?
The correct way to “mud the joints” is going to be to use tile thinset and a fiberglass tape made for cement board. It’s similar to the sticky fiberglass tape made for drywall, but its thicker and more abrasion resistant since the thinset has sand in it and can be vary abrasive.
Can you texture over backer board?
Texture can be applied to HardieBacker board in the same way as drywall.
How do you fill a durock joint?
Quote from the video:
Quote from Youtube video: I'll just show you right here. So I just get it and I kind of split it half way on both. And then just press in a little bit. And a few spots just to get it to stick.
Do you tape drywall joints before tiling?
If you’re working with new drywall, there’s no need to tape the drywall joints. Seal the walls with a skim coat and let it dry thoroughly. Sand with a medium-grit sandpaper to create a uniform surface that’s not too smooth. You want the tile adhesive to have something to grab onto.
Can you tile over drywall in a shower?
The bottom line is that drywall (and this includes moisture resistant drywall) should never be used behind tile in wet areas (showers and tub-shower combinations).
Can you put tile directly on drywall?
As long as your wall is smooth and flat, you can install a ceramic tile kitchen backsplash directly over drywall or plaster with no problem. Start by cleaning the wall to remove any grease, then apply thin-set adhesive, and set the tile. After the adhesive has set, apply grout, and you’re done.
How do you prepare drywall for tile?
Sand the area with medium-grit sandpaper until even, and vacuum up the dust. Wipe with a damp cloth to remove any remaining dust and allow to dry. Prime, to seal it, and let dry. You may also paint this area, if only tiling a portion of the wall, to minimize cut-in work around the tile.
What do you put on drywall before tiling?
How do I prep drywall for a fresh tile installation? Fresh drywall needs up to a month before it’s ready for tiling, but when the time comes, you won’t have to tape the joints. All you’ll need to do is apply a skim coat and sand. Once done, clean the surface from dust, dry any signs of moisture and apply the adhesive.
How do you prepare drywall for shower tile?
Tub or shower wall tile preparation:
- Apply a layer of 1/2″ thick cement backer board to the wall studs.
- Tape any seams and corners with fiberglass tape.
- Apply thin-set adhesive over the fiberglass tape, and allow it to dry.
- Roll a waterproofing sealer over the walls, and allow the sealer to dry.
