Gap between hardibacker and shower pan. You're going to need to do at least two layers.

Gap between hardibacker and shower pan What about a 3/8" wide gap between tile and tub, that is only tile depth? Backer rod that is wide enough to span the gap would be too thick. So I recently installed my cement board on my shower walls and did not know I had to leave a gap in between each board. Installing a 30"x60" wide shower pan. I set the pan over the weekend and left an approximate gap of 3/4 inch between the cement backer and the pan. Installing cement backerboard is one of the more popular choices for a shower wall substrate. Put in as much as you can so it can carry weight. Screw the board to the studs, leaving a 1 ⁄ 8 in (0. Tile will be installed over the lip next to the wall, of course. Fasten GoBoard to studs with GoBoard Fasteners flush to the surface of the board at a maximum spacing of 8" and within ½" - 1" of the perimeter edges. Leave at least a 1/8-inch gap between all pieces to allow for expansion movement. Also, remember to provide transitions at corners and wherever a Kerdi Board meets another wall. 25” minimum Backer-On screws • Trowels - For Hardie® Backer cement board to subfloor, use a quarter-inch, square notch trowel A. Or, should there be a gap below the cement board to prevent moisture wicking up through the cement board? bathroom; shower; mortar; cement-board; backer-board; Share. I will be leaving the recommended expansion gap between all boards covered with Alkali tape and thinset. I caulked that gap with silicone before beginning the tile install. Now that floor is poured, I have a large gap between poured floor and the bottom of the tile backer Leave at least a 1/8-inch gap between all pieces to allow for expansion movement. Once you get everything ready and it SEEMS like it will all go together, primer and glue the coupler to the pipe in the concrete. This is a video of how we fixed a problem in our shower to stop bugs coming in and water flowing out from a large gap between the B421 and B422 are shower methods in the TCNA Handbook in which a waterproof membrane is applied over an unspecified solid backing. Hardibacker over shower pan lip? (too old to reply) Brian 2004-06-24 00:49:43 UTC. it will probably be hyper-visible actually, if you use glossy paint (as you should in moist areas). This gap must be filled with caulk, a flexible joint filler that will seal the fiberglass pan to the tile and help absorb flex in the walls. The gap between the tile and shower pan will be caulked. However, one neat solution for your gap is to fit a cornice molding ie a triangular tile usually the same length as the side of the tiles all around the edge and it will cover the gap much neater than filling it with caulk, but you could do that anyway for When using a shower pan liner with thinset, a separate underlayment must be placed between the liner and the pan to allow the thinset to adhere properly. Fill the gap between the tile and the tub with caulk. Waterproof foam backer board Well assuming you have a 1/8th grout line between tiles Use a spacer between the ceiling and the tile so that you have 1/8th of an inch between the top of the tile and your spacer and then fill the gap with grout. I left a 1/8" to 1/4" space around the perimeter and between the boards like the instruction said, but in the door frame where I cut the hardwood floor up, there is a gap about 1-1. After installing a cast iron shower pan and tiling the wall, we found a 1-inch gap between the shower pan edge and walls in the three sides. If there are any noticeable cracks or gaps between the backer boards, then you’ll need to fill these in before installing the shower pan. The whole point is for there to be an air gap between the tub surface and the backer board. over time due to water droplets hitting them directly and abrasions caused by users brushing against them while taking showers, cement backer Using a foam backer rod (if the gap requires it), neutral cure silicone the gap (binding to either side), and then either applying a butyl tape or an encased in waterproofing flexible polyester bandaging to bridge the gap is what should be done. If I tile my shower pan first, I i read if you install hardibacker or some other cementious backerboard then build the mud pan burying the backer board. Then the tile will go on past the backer and stop maybe 1/8" from the top of the "ledge. In some places it is less than 1/8 inch, and in some places it is up to 1/4 inch because of drywall crumble. I had thought about just butting the CBU up to the lip and then tile to the pan but was advised to run the CBU over the lip and down to the pan leaving an 1/8" gap. Web there should be a gap of 1/4. Thank you guys for your responses. Is polyethylene backer rod appropriate for use in a shower application? What type backer rod works best with silicone calk (open cell or need shower wall solution ideas: MakenaTile: Tile Forum/Advice Board: 4: 02-01-2011 05:23 PM: Gap between tile wall and shower pan: engtogo: Tile Forum/Advice Board: 8: 05-26-2010 12:07 PM: Leak from shower - gap it tile wall: todd s: Tile Forum/Advice Board: 10: 04-20-2009 07:34 PM: shower floor gap to wall tile goof up help: JamesL: Tile Shower Pan Construction - one inch wide gap around perimeter between pan and wall: ObuseMe: Tile Forum/Advice Board: 13: 10-14-2011 10:53 PM: Gap between tile wall and shower pan: engtogo: Tile Forum/Advice Board: 8: 05-26-2010 12:07 PM: Hardibacker shower wall on studs, should I gap between CBU sheets? fenderskirt66: Tile Forum/Advice Board: 5 assuming a traditional mud shower pan with a PVC liner, you want to bed the backer board into the final slope of the mud pan, otherwise, there is no way to secure the ends of the backer without compromising the pan liner. The gap is approx. I’m tiling my shower which has an acrylic base pan. A better backer board is Wonder Board Lite. It normally sits on top of the flange. See these posts to learn more about the basics of waterproofing showers and how to build a shower pan. Did I totally goof or can I fill these gaps with fibertape and thinset? Thanks In Which shower tile backer board is best? Cement board, Wedi board, Kerdi board, Hardibacker, Densshield, Durock, Permabase, or Wonder board. For very wide gaps, add a backer rod to the gaps first before applying the • Install boards 1/4” above floor, tub or shower pan and caulk accordingly. If you are using a lightweight cement board such as Durock, HardieBacker, or WonderBoard, it is typically available in 1/4″, 1/2″, and 5/8″ thicknesses. Put up a sturdy cement board backer. So now I have 1/2 inch gap between the hardibacker and the tub. The GoBoard product line includes Polyiso foam board panels, a versatile shower pan kit, and essential tile backer accessories that when installed as a system, can qualify for a manufacturer The new pan leaves about a three quarter inch gap between the ceramic floor and the pan on the outside edge of the neo-angle (in other words, the two sides fit nice, but the portion under the door is where the gap is). and then building up a dry pack mortar bed on top of the liner. probably unnecessary on a tub, but possibly on a shower pan. There should be a gap of 1/4 inch between the backer board and the shower pan in your bathroom. • DensShield Tile Backer is not to be used in shower Clarification on where backerboard, vapor barrier, and shower pan liner meet Tile Forum/Advice Board. That way, the backer and the shower pan won’t squeak when they rub together. Apply thin-set and set tiles. Joint between wall tiles and shower pan/ flange should be caulked rather than grouted, as should be done for ALL corners and change of planes. I had planned on filling in all gaps where the pan and backer meets, and backer to backer with and applicator full of redgard. Follow directions for the grout. 6 cm) between the edge of the cement board and the lip of your shower pan. Metal and fiberglass alcove tubs. Read on to find out all of the details and my When it comes to the gap between a backer board and shower pan, it’s important to begin with the basics. This space ensures there is no pressure on the pan, which could result in cracks. The picture above shows a shower pan curb constructed out of three 2x4s. Caulk the Gaps Caulk the gaps between pieces with silicone caulk, as well as the gap from the lowest piece on top of the shower pan. This has to do with the condition of the wall plane after the tub/shower pans are installed. Shower pans are thin layers of waterproof material that sit below your feet while taking Installed tile-backer and used pre-pitch and quick pitch with shower pan liner. Since finding the forum, I've learned that the gap between the hardibacker and the tub should be 1/4 inch. It shouldn’t be too big, nor should the cement board sit flush with the Kerdi shower pan lip. Backer Board To Shower Pan. Having this information can go a long way in pinpointing what the right gap is between the shower pan and the backer board. No expert here but looks like at least the first row of tiles needs to be removed, backerboard installed and then a larger This post contains more information on how to build a shower pan using a sealed shower system like the Kerdi shower system. This gap should measure at least 1/4 inch in order for water to If there are any noticeable cracks or gaps between the backer boards, then you’ll need to fill these in before installing the shower pan. I read that it should be a silicone sealant between the boards but I also read that it should be a polymer modified thin set instead with - Avoid inhaling or coming into contact with cement dust. The use of silicone at the juncture between the short wall of mud and the backer board above wouldn't be any different than having the backer board come down full length to the floor, with silicone sealing the bottom edge of the backer board there. There's no motor board in the gap and so we can't put tile directly on it. Remember to leave a small gap (1/8" to 1/4") around the edges for expansion and movement. If the tile can slid into this gap and under the pan with its needed thin set, it would be another way to go. Let me make sure I understand. What is Backer Board? Cement backer board is used as a sub-surface for tiling, usually for showers or bathtubs. The way these systems are built is they have a mortar bed that allows water to flow through it. C. Mix enough thin-set mortar (latex modified thin-set for wet areas) to cover the shower pan. I have the old stuff removed and the bathroom is down to its studs. I incorrectly tiled my bathroom walls, leaving a 3/8 inch gap between the subway tiles and the shower floor tub. of course i HOWEVER, I cannot verify if the 1\8" gap is necessary between CBU sheets in a shower wall application. is it possible to fill the gap with a filler of some kind, then use a fibreglass composite shoe moulding around the new Siliconing around baths, showers, sinks etc can be difficult at the best of times but with these tips and tricks it may help. The joint should be around ¼ inches. 298” (less than 3/10”). How to Install Backer Board Around a Shower Pan Installing backer board around a shower pan is an essential step in ensuring a watertight seal for your shower. Our first installer didn’t have it level and didn’t seal the gap between the tile and the drain and the water just flowed right through the tile and into our basement room. Step 4: Apply Sealant in the Space Between the Backer Board and Tub Lip. FWIW, HardieBacker is a fiber ANSWER ANSWER - The polyethylene backer rod is not likely the cause of your cracking at the tub to shower wall transition, but if there is room for it in that joint, then you should use it to fill the excess space and to gauge the thickness of the sealant you are using. I mistakenly installed the hardibacker 1/4 inch above the tub flange. Thus, the Handbook leaves the determination of a suitable membrane/backer board combination up to the membrane and backer board How to fill 1/2 inch + gap between shower floor and wall tile. I am about to install the shower pan and I am dry fitting everything to check for fit. Get some epoxy grout from your home store and spread it from the bottom of the shower all the way to the top, filling in that space between the wall and the tile. The next step is to put down a layer of felt Are you doing a pre-slope under the shower pan membrane? Hope so if you're using the traditional method. That bottom row of tile will have grout lines with a bit (about 1/2") of a gap where the backer board rests above the top of the shower pan lip. When installed properly they will give you many, many years of durable shower construction. The shower pan has a flange that is 1/4" wide and 1 inch tall. Ensure there is at least a one-fourth-inch gap between the bottom of the board and the top of the shower pan. Yup. Before you begin installing your tile, you will need to measure 1/16th of an inch up from the shower base. Tile DIY Forum, Tile Professionals, Tile How-to's, Tile Advice (shower pan liner), which extends up the walls to a point above the shower curb, is laid over a “pre-slope” of mortar that pitches If I attempt to straighten the contact between the board and tub, the gap between the board and wall become larger, and vice versa. i have all but one more piece of cbu up and I'm almost ready to tape and mud the seams and apply redgard to the whole shower. Remove any debris or obstacles from the area where the cement board will be I am putting porcelan tile down in my bathroom, and have cut the . above the tub. Should I have hardibacker covering the tiling lip of my pre-fab shower leaving a 1/4" gap between the hardi and the top of the pan. g. This gives a straight wall (no bulges at the bottom) for tile. This is to allow for expansion and contraction of the cement board. It is made out of different materials depending on the system used, but typically has a mortar base together with a waterproof backer board such as cement board, HardieBacker I have always found the top surface ie edge is always level and the slope is built into the shape of the shower base. #howto #siliconing #bathsilicone Once satisfied with the tile layout and drain height, remove tiles, clean the shower pan (make sure the surface is smooth and free of any thin-set, grout or debris), and prepare to set the shower pan tiles. I have done some floor tile before, but this is my first opportunity with a shower. Place screws every 6 inches or so up the wall studs, and within 1/2 inch from any edges. Most stick built shower install kits have the same setup when pan and walls are seperate. However, the tiles have been cut quite short leaving a substantial gap to fill. My question is, can I use this backer rod to fill in the gap even though it doesn't specifically say it can be used for We're putting in a shower and I had originally found a tutorial that showed to leave ~1/8 to ~1/4 gaps around the cement board and drywall surround that would be filled with caulk to prevent water I've found more people than not saying there should be a taped and thinsetted transition between the two. Fill the 1/8-in gaps with GoBoard Sealant or GoBoard Pro Sealant, including between the clamping collar and the wedge panels. So, it depends on what CBU you used on the walls. James Hardie recommends a 1/4" gap between the shower and the hardie board but that recommendation is based on a situation in which the board is installed inside the flange. The even plane seams should be addressed with alkali-resistant tape and thinset, no gaps. But do not put grout back in the gap. This transitional flashing problem does not seem to be an issue when tile-backer boards are installed over other types of tub and shower pans, such as liquid or sheet-applied membrane pans. Step 8: Apply Cement Board Adhesive to Tile Backer. Seems like the backer rod is the consensus, based on upvotes and other comments. They prolly want you to bring the tilebacker down and stop it right at the pan. New Arty Boy 2004-06-27 12:44:02 UTC. Step 6 Shower Pan Install DensShield on walls according to assembly DS001. I measured the thickness of the flange/lip of the shower base - . Skip to primary navigation; Skip to main content; Skip to primary sidebar; The backer board would then be installed with a 1/8-inch gap between the bottom of the board and the horizontal bathtub surface. Don't mind the few extra dollars on caulking. Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet: JohnBridge. This underlayment is often a thin sheet of cement backer board, such as HardieBacker or Durock. white_katye. Further, Re: Shower Pans & Wall Substrate Hi John I hadn't thought of that approach. (Do not install DensShield in the shower pan or use it as a shower base. my only question is what to do when it comes to The best way round this kind of situation is to construct a timber frame to fill the gap, then silicone the the timber frame at the joints between the wall and shower tray. Seems logical to have something behind those gaps to act as a backer for the grout, right?. ### Finishing Up 1. core. Also heard set backer board directly on the finished pan, no mention of sealing. 25 in (0. You need to allow for some movement. This means measuring the entire space to see how the backer board is going to be set up. Fill the gaps between the cement board and the shower pan liner with thin-set mortar. , mortar, cement backerboard, etc. Embed Bottom Edge Of Cement Board Into The Top Mortar Layer Shower Bed Leave Gap At Least 1 2 Betw Building A Pan Concrete. This is at the sides of the shower wall, which will not be part of the actual wet shower enclosure. Is there a bette How a water in/water out shower pan is built. 32 cm) gap between the panels and the shower pan. Now that floor is poured, I have a large gap between poured floor and the bottom of the tile backer (denshield) near the drain side wall (essentially, where the floor slopes down to). Should look natural after that. Does the hardibacker/aquapanel go down to the floor THEN the shower tray (45mm deep) butted up against before tiling? 3. Not sure how to handle that 1/2 inch gap. The hardi backer is 1/4 inch above the ledge of the pan. JW - Hi , I have a question. Can the backer be installed before the liner and let the liner come up the backer. Measure your shower walls, then cut the cement backer to fit from top to bottom. 5" hardie backer and laid it down in the room. The shower pan has a lip on the outside edge, and the tile has been installed straight from this lip, leaving a 1/2 inch gap between the wall and rest of the shower pan. Shower Pan Methods at Annie Rainey blog Backer Board To Shower Pan Ensure that the studs are. I believe more of the gap was uncovered as I cleaned, with some of the buildup falling away (note: I am not sure if the material filling the gap is the same as the buildup in the pipe). Improve this Make sure to place screws every 6 inches or so up the wall studs, within ½ inch from edges. My Rating: Good. ) Just a tip if you’re doing the curbless shower pan with the channel drain: make sure the drain is level and sealed all around. From cepafpli. While we are still transitioning from a Kerdi shower pan to a cement board wall, you should familiarize yourself with the recommended size of the gap between these two. The membrane must cover the solid backing under the entire area to be tiled. I have the hardie backer up but realize I • Modified dry-set cement mortar and/or dry-set cement (for use between subfloor and cement board only) • 2” wide, high-strength, alkali-resistant glass fiber tape • Corrosion-resistant roofing nails or 1. Backer boars are generally placed against plywood or OSB board. Do not place cement board into the shower pan mortar bed as this can cause cracking. Once your shower pan is in place, you need to apply the cement backer board adhesive or thinset to the back of your tile boards before laying them That being said, I ensure all the framing corners are solidly screwed and glued together and the Hardibacker wall panels are screwed and glued to the framing and the tub/shower pan is extremely solidly set with the Hardibacker overlapping the tub/pan flange with the backside of the Hardibacker silicon sealed to the flange it overlaps. Then the final deck mud is placed which will lock the bottom of the board in place since you do not fasten it near the bottom. Permalink. ### Step 1: Prepare the Shower Pan Ensure the shower pan is firmly installed and level. Do i fill the gap with adhesive and tile OR make this bottom gap smaller by adding another strip of plasterboard (maybe 100mm) making sure not to go flush down on the floor. Any other ideas appreciated. Note: Shower pan or rubber membrane must be adequately sloped to the open drain or weep hole detail to permit proper water drainage. In this way, it also helps prevent water damage. I installed a Finpan and shimmed studs to be flush with the pan, and using 1/2 inch hardibacker. SEALING THE SHOWER PAN. between the tile-backer and prefabricated tub/shower unit. BTW, cement board is not waterproof, so you need to either apply a waterproofing layer over the cement board, or a waterproofing layer underneath the cement board that The space between the shower pan and backer board should be approximately ¼ inch, although the exact measurement depends on the type of drain installed. Backer board is a moisture-resistant material that Wicking at the wall/floor juncture when using cement backer board (CBU) in tiled showers in conjunction with shower pan liners. 3 years ago. The transition between the tile and the pan was grout covered with caulking. We are based in Australia. The gap between the tile and the tub ledge should be sealed with an ASTM C920 sealant after the tile is installed over the backer board. Then apply a suitable sealant for tiling, and tile onto the section overlapping the shower tray and apply a if i leave a 3/4" gap between the shower mud base and the cement board on the walls, how do i effectively redgard that gap? There are 'true' cement boards that CAN be embedded in the shower pan mudbed, and fiber-cement boards that must NOT be embedded in it. Fill the gap between boards with silicone caulk. Now how best to fill it before tile goes up? I've watched a few youtube videos that recommend filling the gap with the same thin set mortar used to fill the other gaps between durock pieces. There are two schools of thought: One is to attempt to maintain a waterproof 'seal' by ensuring all grout is treated with a waterproofing agent (but that agent is likely to break down and need to be reapplied after 5 years). If not, fill that entire gap with grout. • Keep fasteners 3/8” from board edges and 2” in from sheet corners. The installation instructions with the hardibacker said to leave a ¼” gap between the CBU and the shower pan. Tile backer over the pvc, but best to leave a gap at the bottom, as in dont rest the backer on the pvc, use a carpenter pencil as a stan off. Cement backerboards include Hardiebacker, Durock, Fiberboard, wonderboard, and similar products. Cement board has improved over the years and is easier to work with. The backer board for a shower is a type of material used as a foundation for providing structural support under the tile and waterproofing layer in a shower wall design. • Fasten cement board with specified nails or screws (as listed in “Materials Required”) a maximum of 8” on center at all supports. " So you I would use a 1/2" backer rod (foam rope) and fill the rest with sika. The largest gaps I have are 1/8 on a Looking for an advise I'm installing 4 piece pre-made shower (pan, back wall, side walls) and there's a big gap of 1-1/2" between back wall studs and shower pan What would be the best way to breach the gap, extend studs? 2-3 layer of 1/2" backerboard or some kind of long wood planks (parallel to the floor)? The product put down for the shower pan was a Kerdi Shower Tray but the shower is not 100% Kerdi products. Silicone Caulk? Install shims on the studs to 'pad out' the backer so that it just clears the tub flange and overhangs it a bit (but doesn't 'land' on the rim of the tub) but leaves a 1/4 to 3/8 inch gap to the tub. For curbless showers, a sealed system is the method to use for building a shower with no curb. I will be using 1/2" Hardibacker for the shower area, 97" ceilings. Then tape mesh I will be building up a shower pan using the Oatey Perfect Slope pre-slope system, a 40 mil liner. water will wick up from the shower pan into the walls & curb and start destroying the backer board. Let cure and get very dry. 5" between the hardie board and the hardwood. Trying to I furred out the studs even with the pan's lip and then ran the cbu over the lip as recommended from this site. B. You can waterproof a bathtub surround and shower pan if you carefully follow the above instructions. Skim seams and bottom edge with fast setting hydraulic cement and/or ceramic tile thin-set mortar. Do I leave a 1/4 inch gap with the tile too or tile lower closer to the pan? and do I caulk that gap after installing tile or leave open for drainage? Doing hardie backer board with pre fab shower pan shower. The walls are the Hardibacker red cement board. The gaps are between the sheets of backerboard where they meet, also where the board meets the shower pan. Then apply a generous amount of thin-set to the bottom bathtub tile and position it 1/8 in. This is a full walk in shower 33x60. my question is, do I install the vapor barrier and backer board before pouring the mud base leaving I was wondering what would be the best way to seal the joints between hardie boards in a shower. I am in the process of resealing the gap between the base of the shower tray and the tiles immediately above. Ensure that the backer board is firmly screwed into the frame. Leaving a gap between GreenEBoard and tub tile flange I like to leave about an 1/8" - 3/16" of a gap between the top of the tub's flange and the GreenEBoard. Leave a 1⁄89 (3 mm) gap between DensShield Tile Backer and the shower pan. This water then finds its way down to a rubber-like shower pan liner. Get out the destructions for the pan and read them. There is a gap between the backerboard and the drywall. If a mortar bed is used, a gap of approximately ½ inch must be left between the pan and backer board. It needs to be replaced since its old and turning black at this point. Typically you'd install the tile floor first, and the walls would overlap the floor with at most a The shower pan has a lip that goes up behind the tile. I've heard you should install backer board about 1/4 inch above the pan, with backer rod or some type of sealer to prevent wicking up into the board. The GoBoard product line includes Polyiso foam board panels, a versatile shower pan kit, and essential tile backer accessories that when installed as a system, can qualify for a manufacturer This video focuses on the installation of the shower wall concrete backer board with an acrylic shower pan. You should be able to get this area to look good when you mud it. The build-up makes it difficult to see what is happening. I only use epoxy grout and go right up to the tub/pan leaving 1/8" gap between tile and tub/pan and fill with epoxy grout or dap bright white tub and tile silicone. Angus Durock is up around the bathtub, and as recomended there is a 1/4" gap (or more) between the tub flange and the bottom edge of the durock to account for the tub flexing. A bead of water forms (via surface tension) and sticks there long enough it's still wet by the next shower. I do not know why he chose this as a shower pan; I'm just trying to finish the job myself. Should the Durock overlap the shower pan flange? Contracter say doesn't need to, actually prefers a gap between bottom of durock and top of shower pan flange. You want about an 1/8" gap between the tile and shower pan. My walls are plum, but the shower corner is not square so I need to shim out, but the shim out will vary from one end to another But 1/2 shim works all the way around, does the shim out gap matter or Does the board need to touch the Shower Pan Install DensShield Tile Backer on walls according to assembly DS001. Final pan slope. The other is to assume that any waterproofing will eventually fail, and that one should try to channel any moisture back into the tub. It is important to provide a 1/4 in clearance gap between the floor, tub or shower receptor base and the cement board. Then tape mesh (b) is unacceptable, as the shower surround needs to be waterproof before any tile is installed, but (b) clearly has a gap between the cement board and the top of the flange. The Dreamline manual for the shower pan says "install the wall board with 1/2" gap above the shower base side lip to prevent possible water (wicking effect) damage. See attached pic. If there are any gaps or cracks between the backer board and shower pan, water can seep through and cause mold, mildew, and even structural damage over time. Finally, use a caulking gun and caulk around the flange to fully seal the gap between Fiberglass shower pans are frequently installed with tiled walls in the shower. GoBoard Spacers, tile spacers or paint sticks can be used to help maintain proper gapping between boards while installing fasteners. Possibly an elementary question: I have an acrylic shower base with a flange/lip that is to be screwed into the studs, then the backer board (Kerdi Board in my case) covers the lip. There should be a gap of 1/8″ to 1/4″ between the backer board and shower pan. Which I did. shower pan with Mapei 4:1 with the pvc pitch sticks Oatey preslope under liner with weepguard I’ll attach picks shortly. the Jacuzzi instructions specify no membrane between studs and backerboard and How to Install Backer Board In Shower: A Comprehensive Guide Installing backer board in your shower is a crucial step in creating a stable and waterproof base for your tile or stone surround. I take the backerboard clear to the ceiling but that's a personal preference. I want to fill in the gap with the backer rod, then cover with 100% silicon caulking. Building code inspector (who doesn't inspect this) said tile cement filling in the gap would be OK. Caulk the gaps between pieces with silicone caulk, as well as the gap from the lowest piece on Gap between tile backer and shower pan: pfich: Tile Forum/Advice Board: 16: 02-20-2014 07:23 PM: Gap between kerdi shower pan and CBU: Harry Homeowner: Tile Forum/Advice Board: 4: 12-23-2013 09:58 PM: Shower Pan Old bathtub removed and converted to walk in shower with drain located at far wall. • DensShield Tile Backer is not to be used in shower Designing Kitchens and Bathrooms - shower pan and backerboard - I'm in the process of renovating our upstairs bathroom and have installed a custom shower. Do this on all backerboard walls, so that the I have to use some backing in order to caulk between tile walls and a shower base where the gap to be filled is 5/8 inch wide and 1 inch deep. This will allow you to screw the shower to the stud without cracking the shower. Place 1/2" wood spacer along length of flange and fill void with thinset. You may need another thinner shim on the stud about halfway up from the shower so your drywall doesn't crack when you screw it down. if i built the shower pan then installed the backerboard leaving about 1/4″ gap between the mud floor and walls. Shower pan is in place and all necessary plumbing has been done. Best method to mix large amount of mortar for shower pan pre-slope If you see any mold stop, call professional and have it removed by an expert, you don't want to mess with that stuff. More concerning, there appears to be a gap between the drain and the pipe below. The information I've seen talked about an expansion gap between adjacent walls, but also around the tile in the shower pan. Additionally, I also have information for how to build a curbless shower pan. I've seen a few recommendations that with a floating floor, you should definitely leave an expansion gap (your flooring will tell you exactly how much, mine says 3/8 inch) between the tub/shower and the flooring and that you should NOT fill that gap with caulk. Tile Your World. If you are going to paint, the seams between the drywall and the hardibacker will need to be mudded and taped like any other wallboard seam or the joint will be visible and ugly. Either the plastic would break or the bond would break if that portion of the shower was ever bumped into from all the weight. I recently installed 1/2 hardibacker board for a tub surround remodel. . On a side note, there is a fatty gap between the curb and the sheet vinyl (looks like Ok, here is the history real quick: I ripped out an existing tile shower and pan that had greenboard. I've heard that the reason behind this is that if the tile backer board touched or rested on the tub itself, it would act as a wick and the water would inch its way up the backer board Why there should be a gap between the shower pan and tile. Next, you should apply some silicone sealant between the backer board and the tub lip. The best shower tile backer board for your. 2 methods for how to waterproof and seal the gap between the shower or tub flange and tile backerboard. The consensus recommendation I found was that you should adhere a waterproof quarter A cement board should not go over or touch the lip of the shower pan. Backerboard should stop 1/2" above shower pan/ flange so it can't wick water, regardless of waterproofing. net. Schluter®-Shower System Installation Handbook 2019 Bonded Waterproofing System for Tiled Showers, Steam Showers, Steam Rooms, and Bathtub Surrounds (e. My question is if the gaps are a huge issue, or if I can just fill them with the kerdi fix/mortar and band respectively. 8. I have purchased some back rod roll to help with caulk fill. Allow to dry. You're going to need to do at least two layers. A tiler told me to just silicon the gap between tile board and pan, leaving my entire protection on a bead of silicon that is supposed to adhere to a painted acrylic pan and a fiberglass/gypsum type tile board. Shower Pan Layout Video My shower is a corner shower, and I've got a kerdi shower pan and then kerdi membrane on the walls. If the pan base is level and the walls installed corectly, should never be a problem with water (intrusion) from shower head when using due to the lip mentioned behind the bottom portion of the wall. Question: What do I use to fill that gap before applying the kedi-band between the shower pan and CBU. How to build a shower - Building a shower pan with pre-sloped mortar bed To fill in the large gap between your shower tray and the tiles, you'll need a trusted sealing product, such as a waterproof caulk, to seal the gap. After the pre-slope, most instructions fasten the PVC liner 6-8" above the pan to the wall studs. Definitely caulk the gap, don't use thinset there. I recommend that you maintain a space of 0. How can this be filled in a way that will not crack, will make a water tight seal between the shower base and wall and can be kept clean. If it's all the way down to the tub, water can wick SEALING THE SHOWER PAN. Next install the backer board and finish the final pan so the liner is sandwiched between the backer and framing. The lip on the shower pan goes up about 15mm. We also left a gap between boards which I will tape and thinset. I stopped using GreenEBoard two years back. How close should cement board be to shower pan . Currently there is caulk filling this gap. This gap allows for expansion and contraction of the materials and helps to prevent cracking. Remove the spacer and you should have 3/16th left or less to just fill with silicone. Roll on your membrane, follow directions you need to have appropriate cure times between layers. The tile is 3/16 thick so I figure about 3/8 inch total additional height when tile is thin set to the pan Wall and Flooring Indoor Tiling - Forgot to leave 1/8" gap between CB in shower walls - Hi all, FIrst post after lurking for a bit, many thanks. I installed Hardibacker and vapor barrier according to Home Depot guy's advice - sitting at the lip of the tub, which left a small gap between the bottom of the board and the actual edge of the tub. Sika bonds to almost anything. These materials bridge the gap between expense and effectiveness. Backer Board Mistake Ceramic Tile Advice Forums John Bridge. I installed 2X8 around the shower area to support the membrane and shower pant. If you need to reroute any plumbing or install a new tub or shower pan, now is the time I would simply place a 1/4" shim between the shower and the stud. 4. Drill through the board into the studs. then waterproof the walls, install the mortar with vertical troweled grooves, set the tile, wait, install sealant under each tile, stopping at each vertical joint for a small gap, plug the gap with a spacer before grouting, then fully grout, remove the spacers, and clean the tile. CX, the difficulty i see with your solution is that it could leave a problematic gap between the bottom of the backer hi all, great forum-thank you in advance! michael, i have read your book and tub surround article in fine homebuilding, talked to 8 tile guys, called 2 tech lines and am more confused than ever! i'm installing a Jacuzzi neo shower pan with 1/2" hardiboard and 6" ceramic tile above. There’s a decent gap between the shower pan and the tile walls, resulting in mold/mildew buildup in that gap and possibly under the bottom of the tile. Currently there's about 1/2 → Embed TRITON Backer Board into wet mortar, maintaining 1/8” gap between sheets (to be filled with mortar), and 1/4” gap between backer and walls/cabinet bases/tubs/shower pans → Fasten TRITON Backer Board with proper nails or screws every 8” in the field keeping 3/8” from the edge and 2” from the corners F4. The tile does not come down completely to meet the fiberglass, but stops slightly above it, leaving a small gap. Was Shower Pan Install DensShield Tile Backer on walls according to assembly DS001. I have already taken the initiative to follow these guidlines in the shower maintaining an 1\8" gap between the CBU adjoining sheets and greenboard sheetrock. Once the grout hardens reinstall the shower door track and get a good paintable caulk and run beads on both sides of the door track and at the bottom In any case, thinset will get in there cuz the edges are not smooth, and they tell you to fill the gap: "Fill joints with latex-fortified mortar or Type 1 organic adhesive and immediately embed alkali- resistant, fiberglass mesh joint tape". Highly recommend using backer rod behind the caulk as well - a properly shaped joint will hold up much better in the long term. 2 Do a little internet searching and decide which is better for you. How To Install Cement Board For Tile Bower Power It is better to leave 1/4 to 1/8 inches of space between the shower pan and cement boards to create a moisture barrier, maintain structural integrity, protect tiles, make a spot for tiles installation, and protect cement board bowing. Do you fill the gap with just sealant and smooth off, or can you fill the main gap initially with grout and then seal with sealant. You should waterproof before tiling. windows. com Home Buy John Bridge's Books : Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > Tile For waterproofing, follow the same steps and seal the gap around the shower pan, all the seams, fastener penetrations, and pipe protrusions. Contrary to popular belief Cement board, also called backer board, is similar to drywall except the interior consists of cement, and the outer covering is water resistant. gaps between all board edges, corners and changes of plane. Leave a 1⁄89 gap between DensShield and the shower pan. As I found out redgard over thinset and mesh tape between cement backer board and tub/shower pan A small piece of 2" pipe will fill the gap to the top of the shower drain. Installed tile-backer and used pre-pitch and quick pitch with shower pan liner. Step 3: Apply Thinset Mortar Fill the shower pan with Toilets, Sinks, Showers, Dishwashers, Tubs and Garbage Disposals - Hardibacker and shower pan - I am in the process of adding a custom shower (over concert slab). Tiles are about 5 X 10 with 1/16 grout line . Technically, after the tile is installed over the backer board that gap between it and the tub When installing a shower pan, it is important to ensure that there is a proper gap between the backer board and the pan. He stated when installing a tile application of our size (12x24 porcelain), it is normal for there to be somewhat of a gap between the tile and wall. The tile is talavera style, unglazed at the edges and relatively porous. Remember to leave a gap of at least 1/8 inch between sheets to allow movement during expansion and contraction. I'm installing waterproof hardiebacker in a shower alcove. " I'm building a custom shower and I'm confused about the best method of backer board installation. ) and lapped over the pan liner to protect the wall cavities from moisture penetration and divert that moisture into the pan. Hardie board says to extend the board into the pan 1/4 from the bottom in the lip. The backer board acts as a barrier, preventing water from So, if I install the shower pan flush with the studs, put some poly behind the backer board and lap it into the shower pan, and leave the 1/4" gap between the backer board and There should be a 1/4" gap between the tub ledge and the backer board. I used sanded caulk between my tile and tub on my shower 10 years ago and the caulking has shrunk some but I haven’t had to replace it yet. Specifically, it focused on how to install a moi The thickness of a shower backer board depends on the application and the type of backer board you are using. MY issue: The original home builders installed sheet rock to the floor, Installed and secured the shower pan against the sheet rock then installed Greenboard over that down to the lip of the shower pan, then tiled. That height will mark where your first row of tile can begin. Be sure to put a sharp vertical edge on it so the tile can fit up to it. Apply your Red Guard the next day and have the tub taped off, leaving just about 1/16-1/8″ gap to the thinset. Do this also with the space between the lowest piece and the top of the shower pan. Rather than caulk, I'd browse the tile section for some kind of piece you can use as trim at the base of the wall to cover over the gap. Allow it to dry. You will need to maintain that gap around the edge to prevent the tile from cracking. 7. This giving some support to bottom row of tiles? 2. After tearing it all out, I now have a 1/2 inch gap between the lip of the pan and the studs. After The bottom row of a newly installed tile wall has a gap with the shower base that is about 1/2 inch wide, too wide to caulk. That way if water did get in on the bottom, it has nowhere to go. So, make the slope, install the membrane, then you install the backer board leaving about 1/2" gap above the membrane. Between the tub ledge and the backer board, there should be a 1/4″ gap. " And then, "the wall board MUST be cut to fit up against the front edge of the shower base. I think you'll be fine with standard mud/tape, it's not a wet location, just moist if it is indeed above the Leave a 1/8" gap between the backerboard. Ok, here is the history real quick: I ripped out an existing tile shower and pan that had greenboard. Hi all, working on a bathroom gut and remodel. Web there should be a gap of 1/4 inch between the backer board and the shower pan in your bathroom. blob. Generally the transition between the tub and tile on the wall is either wrongly filled with cementitious grout or the Go get some Du-Rock cement backer board or Hardie synthetic backer board and cut a 6" rip to fill in the void you just cut. gbmgkf zlhuf hioufohj mleavq bckzl tyzgg kqu jrxis soi ayldq