How to Waterproof Your Van Shower | Van Conversion Bathroom

Wondering how to make sure your van shower is totally waterproof?

We’re breaking it down step-by-step, so if you’re thinking about putting a bathroom in your van conversion - this is the blog for you! Watch the video below for full instructions.

STEP 1: FIND A SHOWER PAN

First thing you’ll want to do is find a shower pan that will fit within the available space you have in your van. We love this 24” x 32” shower pan by Lippert Components.

STEP 2: FRAME YOUR BATHROOM

We use steel channels to frame our van bathroom - we love these steel studs because they are lightweight, won’t rot and are stronger than traditional 2 x 4s.

STEP 3: SEAL BETWEEN THE WALL AND THE TOP OF THE SHOWER PAN

You’ll want to use something like this 3M Flashing tape to ensure you have a seal at the top lip of the shower pan. This will make sure no water will be able to get in between the shower pan and the wall.


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LOOKING FOR THE DIMENSIONS OF A VAN CONVERSION BATHROOM?

Get the floor plan of all of our van conversions including dimensions for the bathroom.

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STEP 4: ATTACH FOAM BACKER BOARD

Instead of using heavy cement hardie board, we use a foam backer board. There are a few different products on the market:

  • Hydroban Board

  • Go Board

  • Wedi Board

You can usually find these products at a local tile shop like DalTile.

STEP 5: CREATE A WATERPROOF MEMBRANE

We use Red Gard tape and Red Gard Waterproofing membrane to ensure we have a complete watertight membrane over the top of our foam backer board. You’ll want to put 2 coats of the Red Gard Waterproof membrane on before you move to the next step.

STEP 6: ATTACH YOUR WALL MATERIAL

Figure out what type of wall material you’d like to use for your van shower, and attach it to the walls. We typically use a FRP board from Home Depot.

We’ve also used real tile before, and that worked great but it’s a LOT more work. It took us 5 days total to prep, tile and grout the bathroom. On the other hand, using a waterproof board only takes 1 day.

STEP 7: SEAL ANY ADDITIONAL CRACKS

We use Polyseamseal to caulk any corners or edges of the wall material to ensure we have a completely waterproof bathroom!

Sara & Alex James1 Comment