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My name is Lisa and I'm a crafty girl with wanderlust working as an engineer by day. My blog chronicles projects in my home as well as pictures and stories from my travels.

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Tuesday
Oct292013

Installing the Vapor Barrier for the Bathroom Shower

With all of the plumbing in and the rough approval complete I set about installing a vapor barrier for the bathroom shower surround. I actually did this back in September before my crazy period of travel this fall, but I didn't have time to organize the photos and write about it until now.

Although the porcelain subway tiles that I will tiling the shower surround with are waterproof the grout and the cement backer board is not so it is important to protect the wood studs with a vapor barrier. I choose to use clear 6 mil polyethylene behind my cement backer board for my vapor barrier.

There are other ways to waterproof the shower, like using RedGard or Kerdi waterproofing membrane, but the important thing is that you should only install one vapor barrier (i.e. do not install sheeting behind the cement backer board and then RedGard over the cement backer board) so that moisture won't get trapped between the barriers.

Because this is a barrier against moisture throughout the installation process I used the least amount of staples needed to keep the sheeting in place in order to minimize staple holes in the sheeting.

I started by lining the soap/shampoo nook in the shower. I cut a piece that was larger than the nook and used my stapler to tack it to the back of the nook.  I folded the corners to lie flat and then trimmed off the excess sheeting around the nook.

Next I cut a single continuous piece of sheeting that would wrap around my whole shower with some excess at the top and bottom. I cut tight holes around the plumbing and secured it to the walls with a few more staples.

To finish the nook area I trimmed out a rectangle a few inches smaller than the nook out of the sheeting. I cut a diagonal slit at each corner and the folded the excess into the nook and stapled it down.

As a last step I trimmed the excess sheeting off of the top and bottom of the shower surround. To make sure that any water trapped by the vapor barrier would drain into the tub I lifted up the bottom of the sheeting, applied clear waterproof silicone caulk to the lip of the tub and then pressed the sheeting into the caulk making a nice water tight seal. I also added a dab of the silicone caulk over each of my staple holes and to seal where the two sheets met in the nook for good measure.

When I finished installing the sheeting Frank peeked into the bathroom to see what I had been up to and said it looked like something from the set of the TV show Dexter. Yes, it does look a little scary right now but I can already imagine it covered with beautiful subway tile. Next up is installing the cement backer board (the photo below aready has the first piece installed in the nook with one of my subway tiles propped up) and then the tiling fun will begin!

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Reader Comments (5)

I chuckled out loud at your comment about tiling fun (beginning) ...

October 29, 2013 | Unregistered CommenterMary-Lou

I'm very excited to see how this project progresses since we're considering retiling our bathroom. I love that you go into so much detail i your posts; it makes me think I could actually do it too!

October 29, 2013 | Unregistered CommenterSandy

Mary-Lou- Thank you! Compared to all of the prep work tiling is fun!

Sandy- Thank you! I am excited to get this done myself. I think that anyone can do just about anything as long as you do your research before you begin. Personally I have found the John Bridge forum (http://www.johnbridge.com/vbulletin/index.php) to be an excellent resource for tiling. I've never posted there but just about any tiling question you can think of has already been asked!

October 31, 2013 | Registered CommenterLisa

I can't wait to see how this turns out! Tiling may be a lot of work but it will be worth it in the end!!

November 28, 2013 | Unregistered CommenterRoy

I am two excited to see how this turns out! I think this an advance version of water proofing and I am planning to create a similar one in my bathroom.

July 17, 2014 | Unregistered Commenterpest control elk grove

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