Gap Between Tub And Cement Board. 2. The tub flange protects any water that may get behind the t

2. The tub flange protects any water that may get behind the tile from going back behind the tub. Feb 7, 2017 · Designing Kitchens and Bathrooms - How to close the gap between bathtub and wall - whats the correct way to close the gap between the right side of the tub and the wall? extra cement board/ply/drywall? i plan on coating durarock wall with red guard thanks A small gap should be left where the backer board meets the tub and it should be sealed with silicone or the appropriate sealer for the tile backer board that you are installing. Sep 28, 2023 · I know cement board is installed about 1/4 inch above tub flange. What do I do with the gap between the cement board and the tub? I have Durock surrounding my tub and am going to be waterproofing with Redgard. The old tile and drywall are removed down to the studs. The tile will cover gap. Feb 25, 2008 · Fantastic forum and very helpful! I removed my bathroom walls (around tub - 3 wall alcove) to stud then insulated/ vapour barrier and screwed cement board to the studs. I had already taped and mudded each seam before I Dec 4, 2025 · The membrane must extend down over the bottom edge of the cement board, covering the 1/4-inch gap, and continuing a short distance onto the tub flange itself. Metal and fiberglass alcove tubs. In the process of cutting the cb and installing to walls the gaps in the corners (ceiling to wall corner; wall to wall Feb 5, 2005 · The backerboard is screwed into the studs with the mfg. There should be a 1/4" gap between the tub ledge and the backer board. We would like to show you a description here but the site won’t allow us. Get the step-by-step . In either case, some say to fill the gap between the lip of the tub and the cement board or tile, with thinset. Here's what you need to know. Jan 12, 2016 · Mesh tape and tile backerboard seams. Does this look right? Feb 1, 2022 · I’ve about installed almost all the cement board for my bathroom tile renovation around the 3 sides of the tub. When facing the tub directly, The tub butts right up to the studs on the back (long side) of the tub but I’m left with a 1/2” gap on the left hand side of the tub and a 3/8” gap on the right hand side between the tip lip and the studs. I saw the cement board had huge gaps in it between it and the tub and drywall in places before he tiled and I’m worried about leaking and molding. Dec 4, 2025 · For walls, secure the cement boards to studs, with a 1/4-inch gap to the floor, shower pan or tub, and a 1/8-inch gap between boards. There is about an inch, inch and and a quarter of a gap between the tub and tile on the faucet side he said there was nothing he could do because the tub wasn’t level. You should be leaving an 1/8” to 3/16” gap between your tile and your tub anyway, so at that point your tile really isn’t hanging past the cement board all that much. I am in the process of installing the dura-rock cement board and I have a few questions and concerns. However, in one corner where a horizontal sheet (3' edge) meets the adjacent sheet the gap runs from just about 0" at the top to about 3/8" at the bottom of the sheet. Cut the Boards Cut the boards for the remaining sides of the tub and install them in the same manner, leaving 1/8-inch gaps in between adjacent boards. In this demonstration I used GO board as the waterproof material for tu If you do a go board shower, are you putting the thinset directly on wet sealant? Seems to me like you'd want that stuff to dry, but I guess it's possible the thinset sticks directly to the wet glue. Feb 1, 2022 · I’ve about installed almost all the cement board for my bathroom tile renovation around the 3 sides of the tub. Shims can be installed beneath the tub to get your height and level exactly as desired A 1/8" gap is left between the tub lip and the tub surround. Jul 25, 2013 · Use 1/8-inch spacers to maintain the gap as you secure the board with the cement board screws. And others say, leave a 1/4 or 1/8 gap between the cement board and lip (to allow for expansion). Backer boars are generally placed against plywood or OSB board. 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. JW - What should I do with this gap between the cement board and my tub? I'm putting tile down and my wife thinks we need to fill this gap (3/4") I was thinking of just filling it with grout, or leave the gap and use pvc shoe molding attached with silicone. The cement board needs to be installed 1/4" above the tub flange and due to its heaviness I had Frank hold it up for me while I screwed it in to guarantee the gap. If you overlap the moisture barrier with the raised lip around the tub, any moisture has only one path to take due to gravity -- down the barrier and into the tub. In this video, I show you how to install cement board and waterproofing for tile shower walls.

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