How to Finish a Joint Between Drywall and the Cement Board
- Apply a length of mesh-style, self-adhesive drywall tape lengthwise over each of the seams that are between the drywall and the cement board, rolling the sticky side of ...
- Cut off the end of the tape to fit with a utility knife.
- Spread joint compound over the length of the tape with a 6-inch drywall knife. ...
- Let the compound set for six hours. ...
What do you use to finish the joints of drywall?
Anyone who has installed drywall knows that you finish the joints with drywall tape, which is usually paper, and joint compound, a gypsum-based plaster commonly referred to as mud.
Do you flush cement board with drywall?
At some point along the wall, the cement backer board will meet with the drywall used in the rest of the room. This joint needs to be flush and smooth in order for the tile or other wall covering to be installed correctly and to create a professional, finished appearance.
What do you use to finish cement board seams?
The procedure for finishing cement board seams is almost the same, except you use fiberglass cement board mesh tape instead of paper and thinset mortar instead of joint compound. Which materials do you use at the transition between cement board and drywall?
How do you stick drywall tape to cement board?
Apply a length of mesh-style, self-adhesive drywall tape lengthwise over each of the seams that are between the drywall and the cement board, rolling the sticky side of the tape out along its length and pressing it firmly to the surface with your palm.
How do you finish cement board joints?
1:466:34How to tape Cement Board Joints - YouTubeYouTubeStart of suggested clipEnd of suggested clipOne of these corner trials it works very well to reinforce the joints perma based recommends usingMoreOne of these corner trials it works very well to reinforce the joints perma based recommends using their 2-inch perma base mesh tape.
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.
Should you tape cement board joints?
0:3614:23Taping and prepping cement board joints - YouTubeYouTubeStart of suggested clipEnd of suggested clipI recommend that you get cement or tape mainly because it sticks to cement board better.MoreI recommend that you get cement or tape mainly because it sticks to cement board better.
What do I use on cement board joints?
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.
Does drywall mud stick to thinset?
thinset will stick to the drywall mud. Make sure you didn't leave a hump at the seam, and try to position the tile so the seam runs near the middle, but definately not under a grout line. Watch out that the thinset doesn't start drying too quickly as the mud will want to pull the moisture out of the thinset.
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.
What kind of tape do you use on cement board?
FibaTape® self-adhesive Cement Board tape is specifically designed for cement board finishing. Cement Board tape is alkali-resistant to meet most cement board manufacturer's recommendations. The patented fiberglass construction provides long-term crack resistance.
How do you finish outside corners of cement board?
5:198:07Prepping a corner bead and where cement board and sheetrock meetYouTubeStart of suggested clipEnd of suggested clipBut this is actually made for cement board so you basically just get it in the corner like youMoreBut this is actually made for cement board so you basically just get it in the corner like you normally would if you've done any sheetrocking before and taping it's self sticking.
How thick is cement board?
Cement board is 1/2 inch thi ck and so is the drywall you use in most rooms in the house. In the bathroom, however, water-resistant drywall is recommended, and this is often 5/8 inch thick. If you're installing the cement board yourself as part of a tiling project, the best way to bring the edges flush is to add shims to ...
How to reinforce a seam in a bathroom?
How to Reinforce the Seam. If you're constructing the bathroom from scratch, it's easy to put a stud at the edge of the tiled area where the seam occurs. That allows you to anchor the edges of the cement board and the drywall. If you're remodeling, though, and you're working with existing framing, you may have to add a 2x4 at the seam.
Can you add mortar to cement board?
If enough of the cement board is exposed, you can simply add extra mortar to the cement board side to level the seam. It may happen, however, that the tiles are set too close to the edge to allow you to do this. In this case, you might want to consider bordering the edge of the tile with decorative wood trim.
Can you finish a tile backer with drywall?
When you tile a shower stall or tub surround, you need a waterproof backing. The one recommended by almost every building authority is cement board. The rest of the bathroom walls, on the other hand, are usually covered in drywall.
Can you use fiberglass tape to waterproof drywall?
You want the joint to be waterproof, 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. After it has dried, you can smooth the transition, especially on the drywall side, by applying extra coats of joint compound, ...
Is drywall covered in bathroom walls?
The rest of the bathroom walls, on the other hand, are usually covered in drywall. This means you have a transition between the two materials at the edge of the tiled area. Your mission, should you choose to accept it, is to make this transition unnoticeable on the finished wall, and it isn't that difficult to accomplish. Advertisement.
Can you install a whole stud in a wall?
If you can't fit a whole stud into the wall because of obstructions, an alternative is to install horizontal blocks between existing studs at the lowest and highest points you can access. If you're tiling a bathtub, this would typically be at the top of the tub surround and the top of the wall. As long as you can anchor both ...
