I was given an article from the pages of Fine Homebuilding magazine entitled Installing a Leakproof Shower Pan. I enjoyed the article. It seemed very thorough. But in it it stated that unless the bottom course of backer board was installed 1-1/2 in.

From the pan floor, moisture would wick up the board and create a variety of problems. I have 2 questions: 1) What are some examples of problems that could occur if the backer board were installed too low? And #2)When the author states 1- 1/2 in. From the pan floor, does that mean under the mud?

Installing a Leakproof Shower Pan A thick mortar bed over a vinyl membrane makes a sturdy base for tile, but it pays to test for leaks. Prepping & Purchasing The Pan; Steps to Install; Steps for Removal & Replacement; Installing on Concrete; DIY or Hire a Pro; Shower Pan Installation. Most acrylic and fiberglass shower pans cost between $100 and $1,000. Fiberglass is less expensive, but more prone to color loss and scratching. Acrylic tends to be more durable, but it’s. How to Install a Tile Shower Floor. Installing a Leakproof Shower Pan. That’s the concept for a thin-bed mud pan installation. How to Fit a Shower Tray. With the floor and wall open, you can. Reworking drain and vent lines will be. Figure A will give you. If your tub didn’t have a vent, you.

In other words, is the measurement taken from atop the vinyle pan? Is there any backer board behind the mud floor? You might also ask at Breaktime.

(Click on the Breaktime button in the second row of buttons near the top of the window.) People there will also tell you to ask at John Bridge if you don't mention that you already have. You might also search the Breaktime archives. I'm fairly sure I've seen discussions there about wicking backer board.

Click on the Advance Search button near the top of the index frame, the one on the left that shows the list of threads. I would first try a search for wicking and shower or wicking and backer.

The main reason you've only gotten one response here is that this forum is aimed at discussions of design as in esthetics rather than design as in engineering and choice of materials. We're happy you're here, but for this question, it's kind of like asking barbecue questions at the ice cream store.:). I built a shower pan in accordance with the article.

It worked great. The backerboard is 1 1/2' above the subfloor. In my case, I added another 3/4' floor over the original subfloor to give a sturdier platform for the shower.

You may have noticed that a slope is placed on the subfloor with a mud mixture and then a liner is installed. This liner is fastened to the studs above the highest possible water level. There is also a 2X10 blocking area around the rim of the shower between the studs to support the liner. The backer board is placed over the liner, but well above the lowest part of the liner. Once the actual pan is formed with mud on top of the liner, it will join with the backer board at the higher level.

If you think of the 2-3' thick pan as being relatively impervious to water, you can still imagine a leak in the grout at the bottom of the wall or around the drain. This potential result of a small leak over time will allow the water to migrate to the liner. If the backerboard is well above the water which may collect in the pan, it is less likely to wick up and over time destroy your framework, assuming you have installed the pan correctly with the weep holes uncovered. One thing that the article failed to mention is that you will need a sealant from the noble company, as well as the liner. Download Samsung Corby 2 Gt S3850 Themes Files.

Go to their web site. You will find the sealant there and you can buy from them over the internet. DO NOT use any other sealant with the Chloraloy membrane. If you post a reply, I will probably not see it as I don't usually come to this forum. E-mail me if you have further questions.

If your next bathroom remodel includes a tub or prefab fiberglass shower base, then the installation is going to be pretty straightforward. But, if you’re thinking of installing a tile shower floor, you’ve got some decisions to make when it comes to your method of installation. All of the methods will work, but the one you choose will be dictated by how much labor you’re willing to put in (or pay for), and how custom you want the job to be. Option 1: A traditional mud pan This is the traditionalist approach to preparing a shower floor, and requires some labor. We have an excellent start to finish article,, on the process, but here’s what’s involved: After the shower has been rough framed, a thin layer of Portland cement and sand (aka “mud”), just wet enough to cling together, is laid across the subfloor and pitched toward an adjustable drain in the center, or to a along one of the edges.