Questions tagged [cement-board]

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7
votes
1answer
32k views

What's the best option for cutting cement siding?

I bought some of James Hardie Trim made of fiber cement and I'm wondering what the best option is for cutting it is. Home Depot refuses to cut it because it ruins their saw blades. Scoring this stuff ...
7
votes
2answers
91k views

What cement board can I use for an outdoor bbq?

So I've built a metal frame that is going to be used as my outdoor bbq. I am ready to install siding on it and I was told to use HardiBacker. I googled it and apparently it isn't for use outdoors. ...
6
votes
2answers
12k views

How to join seams between hardiebacker and drywall in a corner?

I'm tackling a full bathroom drywall install for the first time and trying to make sure I don't make any unfixable mistakes. I am at the taping/mudding stage. Based on my understanding, I can use ...
5
votes
2answers
75k views

Do you need to tape and 'mud' cement board corners in dry settings?

We're giving our wood stove surround a makeover. We're going to build out the front with steel studs and cement board, then tile over it. For the cement board, does one need to mesh tape the seams ...
5
votes
1answer
3k views

Is cement board a better soundproofing material than 5/8 drywall?

Cement board has a higher density than 5/8 drywall. It also probably, and this is just a guess, probably has a lower resonance as well (being cement), so less sound should get through. 5/8" drywall ...
4
votes
1answer
896 views

Should I continue to remove the cement board, or just remove the tiles?

I'm in the middle of replacing the tile in my bathroom and started to take off the backer board but now I'm wondering if I should've just cleaned off the top of the boards and reused it. The backer ...
3
votes
1answer
5k views

How much does a pallet of durock 1/4" cement board weigh?

I am trying to figure out if I will need to make separate trips for my thinset mortar and cement board to keep within the safe operating limits of my vehicle's maximum load weight. I plan on buying ...
3
votes
1answer
715 views

Does the side of Hardibacker cement board really matter?

I saw somewhere that the rough side should face out in case of thinset and smooth in case of mastic. I hung some boards randomly before knowing so some smooth sides are facing out and I'll be using ...
3
votes
1answer
25k views

Can I place cement board over existing drywall in preparation for a natural stone?

Can I place cement board over existing drywall in preparation for a natural stone (quite heavy)installation in my living room? If it's possible, is it okay for the cement board screws to pass over ...
3
votes
2answers
999 views

How do I apply tile to a small wood platform?

I have done some research and mostly I have found that putting cement board on top of plywood is the general answer to tile on wood, but it doesn't really fit my situation as much as I had hoped... I ...
3
votes
2answers
18k views

Tape or corner bead where Hardi meets Drywall?

I need to finish the outside corner above the shower alcove. The shower ceiling is hardibacker and the wall outside the shower is drywall. Where these two meet, what is the proper way to finish it so ...
3
votes
4answers
7k views

What should I do about excess flex in cement board that will be behind tile?

This is around a tub/shower. The studs are spaced at 24in, cement board is 1/2in. We're surprised at how much flex there is between the sheets of cement board. I'm worried that tiles may pop off. We'...
3
votes
4answers
21k views

Can you use drywall mud on hardiboard?

I am looking at painting hardiboard or mudding and then painting. Is that OK?
3
votes
3answers
401 views

Can I glue instead of screw a 3/4” strip of cement backer board?

I am building a shower. The entrance is framed by 2x4s. On the outside of the shower there is drywall butting up against the 2x4. So, there is only enough room for a 3/4” strip of hardibacker. I’ve ...
2
votes
2answers
612 views

How do I go about making 1" and 2" thick "boards" for concrete furniture?

I have designed a cement feeder for hogs, for my hobby sized farm. It is generally based around a professional one we already had. I have planned on different parts of it being 2 inch, 1.5 inch, and ...
2
votes
2answers
2k views

How can I prepare a wall for reasonably heavy tiles in a shower area?

I'm renovating a bathroom in my apartment and would like to fit 12mm Travertine tiles in a bath/shower area. For most of the walls in this area I have used cement board (Hardibacker 500) attached ...
2
votes
2answers
2k views

Do I need to install cement backer board on the wall above a tile shower surround?

We removed a tub wall surround and want to replace it with tile. We don't plan to tile to the ceiling. Can we cut out only the drywall where the tub wall was and replace that with cement backer ...
2
votes
2answers
689 views

Is this cement board / Sheetrock still ok to use in my bathroom?

Our builders are putting up cement board in the bathroom, and we noticed the pieces on the left have some stains, they look very different to the rest that looks the same as the ones on the right of ...
2
votes
1answer
7k views

What backer board should I use in shower ceiling?

I'm tiling my shower up to about 7' and the rest of the shower and ceiling will simply be painted. What material should I use on those? I am using RedGard as my waterproofing method so there will not ...
2
votes
1answer
72 views

How to ensure a Cement board wall that is only supported on the floor (without ceiling fixing) is stable?

I have a client that is requesting to construct a 1.8m (6ft) high wall around the back entrance of an apartment. This wall will be in a U-shape (Plan wise) with 2m (6ft) length sides and 5m(16ft) ...
1
vote
4answers
4k views

How to cut thin strips of Hardiebacker

I started with Hardiebacker for the first time today for the wall of a shower, and was greatly impressed by the ease of the score-and-snap method for getting the large pieces I need. However, I also ...
1
vote
2answers
217 views

Cement Board versus Mold Resistant Drywall at Top of Bath Tub/Shower Surround

The drywall installers ran short of cement board, so they used a small piece of mold resistant drywall at the top of the wall where the shower head is located (see upper right of first picture). I ...
1
vote
2answers
1k views

How can I build up the hardibacker if it doesn't come flush with the tub

So I have put hardibacker on the walls around the tub and on one of the three walls the wall is not flush with the tub flange (See pic below). Not sure how to make the wall a bit thicker to go over ...
1
vote
4answers
49k views

How do I remove Cement Board that has been screwed in and is bonded to wood subfloor with thinset?

I am in the process of purchasing a townhome and I am looking to tear up the existing 12" ceramic tile that covers the entire main level... an area close to 600 sq. ft. to make way for laminate ...
1
vote
1answer
43 views

Are 1-1/4" screws enough for cement board if I shim the studs with 1/2" shims?

Due to an offset between the plumbing and the shower drain I need to float the wall on the short side of the shower base with like 3/4-1/2" so I am using top to bottom shims. I am not sure if the ...
1
vote
2answers
1k views

Epoxy over cementboard

I have achieved fantastic results applying epoxy over the concrete floor in my basement apartment. I am currently doing the kitchen in my main unit. My preferred flooring choice is stone tile ...
1
vote
1answer
900 views

Accidental drywall mud over cement board

I have a wall in my kitchen being built that will have some drywall and some tile. A dude I hired to finish my drywall, while I wasn't supervising him, applied some drywall mud over the cementboard. I ...
1
vote
2answers
2k views

Can I use Kerdi Board instead of Cement Board to thinset natural stone tile?

I've got these split face natural stones that come in 24 x 6 panels, and I was going to install them onto Cement Board using thinset. Checking the boards out (Permabase Plus), they contain silicates ...
1
vote
1answer
1k views

How can I smooth a seam between cement board?

I have a joint between two sheets of cement board that forms a small ridge elevated maybe 1/8" relative to the centers of either board. I was wondering if extra thinset on both sides can be used to ...
1
vote
1answer
99 views

Can I level basement floor with cement board and self-leveling cement?

I have about a 1" height difference on my concrete basement floor. My understanding this was for drainage in case of flooding. I have a wall in the way of where anything could potentially drain ...
1
vote
1answer
309 views

How should I transition between cement board floor and alcove tub?

Remodeling a bathroom and about to put in the floor. I have a plywood subfloor, and I'm about to install 1/2-in cement board on top, bedded in modified thinset spread with a quarter inch notched ...
1
vote
2answers
58 views

Underlayment for using porcelain tile outdoors?

Rebuilding an outdoor deck in upstate NY with 6" X 24" porcelain tile. The foundation will be a 6" concrete bed with rebar. Confused about the need for and the order in which the ...
1
vote
1answer
102 views

Replacing old tile kitchen with wall

My basement kitchen wall is adjacent to the bathroom and shower. I want to replace the old tile in the kitchen with a straight wall, which I’m planning to paint. I have removed the old tile and ...
1
vote
1answer
633 views

Cement board under cabinet with no tile

In my basement apartment, I had concrete underlayment and I decided to not install tile under the cabinets even though some people advised me to do. It turned out well especially because I ended up ...
1
vote
1answer
663 views

Should the tiny gap between exterior window trim and the window housing be caulked?

I have a home with Hardie Board siding and trim. There is a tiny gap between the edge of the installed windows and the Hardie trim board ( Please see the gap where my finger is pointing in the picture ...
1
vote
3answers
171 views

Tile on OSB substrate in bedroom

A lot of information online about laying tile is specific for bathrooms (that need waterproofing), but in this case I want to remove carpet from a bedroom that is used as office space. This carpet is ...
1
vote
3answers
3k views

How to correct burying cement board into shower pan concrete?

I made the big mistake of burying my cement board (Hardiebacker) into the concrete of my shower pan. I now understand the risks with water wicking up into my concrete boards, and causing a moisture/...
1
vote
2answers
2k views

Drywall/Cement board transition for a tub surround

I am remodeling my bathroom, and intend to replace my bathtub and surround. I have started ripping the 5/8 in. drywall from around the bathtub, and I intend to install a cement board and tile all the ...
1
vote
2answers
15k views

Use cement board without plywood for outdoor kitchen

For outdoor kitchen, do I need to use plywood on top of the framing, then cement board? Or can I put cement board directly mounting to the frame like this? Source: http://www.homedit.com/how-to-build-...
1
vote
1answer
248 views

Can I cut up sheets of cement board and use it as wall shingles?

I have seen lots of great fiber cement board shingled projects popping up around my neighborhood lately, and would like to do the same for my garage. Currently it is done in vinyl which I absolutely ...
1
vote
1answer
14k views

Is this Asbestos?

I've found this flat panel in my garden (1 x 1.5 meters, thickness approximately 0.5 cm): Is this Asbestos? I'm in Bali where asbestos cement is still widely used. It's not friable.
1
vote
3answers
469 views

Horizontal blocking behind cement board necessary on edges(wonderlite specifically)

Using wonderlite cement board in my tub area surround, instructions say all edges supported? but almost every instruction video including their own doesn't show any backing behind the edges where the ...
1
vote
1answer
304 views

Can I tape cement board with mastic instead of mortar?

In the past, I have mesh taped cement board with thinset. Is it okay to do it with mastic instead? The reason I would prefer it is to avoid mixing thinset in my own tub, as opposed to the container ...
1
vote
1answer
249 views

What wall cladding should be used along the floor of the garage?

I have an attached garage on a house with a wood foundation in Minnesota, USA. The garage is not temperature-controlled. On a roughly three foot long exterior wall, I discovered the drywall was ...
1
vote
2answers
739 views

Can I use mortar to transition a height difference between cement board and drywall?

A family member helped me install some cement board in my shower, but the cement board and drywall aren’t level. It already has two coats of red guard and is basically ready to tile. Can I use thin ...
1
vote
1answer
222 views

Delineation between drywall and cementboard

This is the sink/dishwasher bay for my basement apartment. There will be a bottom and a top cabinet, corresponding approximately to below and above the green line. I want to put tile on the wall ...
1
vote
1answer
8k views

What is the best board to install behind a glue up tub surround?

I would think it would make sense to install a waterproof board like GoBoard or DensShield behind a fiberglass tub surround, but I can’t find an adhesive that specifically states that it is compatible ...
1
vote
1answer
411 views

What size should I cut my backer board?

I am hanging backer board for my shower and have a 5'x 3'2" tall space I need to cover. The backer board comes in 5' x 3' sheets. My question is should I Use one full sheet and then cut another ...
1
vote
1answer
3k views

Patch Hole In HardiPlank Fiber Cement Siding

I have a hole in the siding of my home. The siding is HardiPlank fiber cement. The hole size (diameter) is that of a cable line. A cable line was run through the siding when the previous home owners ...
1
vote
1answer
110 views

tearing out tub/shower surround

I live in Vancouver, and my condo is about 25 years old. A couple of the tiles in the tub/shower surround are cracked, and I know that when I take them off I'm going to find soggy drywall. I'm ...