Building my DIY shower/bathroom, did I forget anything?

It is, but it's thick and I thought maybe you could put some kind of floor over it. What about some tiles that water flows through, like those 12x12 garage tiles? Just an idea.

is it friday yet? wrote:
Use this on your shower floor. I used this product in my house addition for the shower and it hasn't leaked at all. This is an image I found on Google. They sell it at Home Depot, Lowes, etc...

Isn't that a shower membrane they use when they make a ceramic shower?

Use this on your shower floor. I used this product in my house addition for the shower and it hasn't leaked at all. This is an image I found on Google. They sell it at Home Depot, Lowes, etc...

Commonly in shower enclosures in RVs (and probably in other applications) the wall panels extend down over and in front of the lip of the base a few inches, with no sealant between the two. That allows for some movement of them relative to each other. Caulked joints don't last well when there's much movement at all (at least with traditional caulking materials like silicone), and any slight twisting of the vehicle chassis will cause movement between the base and the walls. There's probably less slop in a van chassis than a typical class C or A motorhome chassis, but I suspect still more than in a house.

There's no real need to put plastic on the ceiling IMHO. It's not harmful, just unnecessary. If water is dripping onto your ceiling, you have bigger issues than a wet ceiling.

Be aware that once silicone is cured essentially nothing will stick to it. This includes more silicone. Resealing a silicone joint requires removing every bit of existing silicone and thoroughly cleaning the area and is a major pain. Other sealants may be more suitable; I've generally had good success with OSI Quad, though I have not tried it in any bathroom or other interior applications.

Depending on your height and the interior space, you may want to consider a ceiling-mounted track for the curtain rather than a rod for greater headroom when entering and exiting the bathroom. Having the exhaust fan not be in the shower compartment itself is actually not a bad thing, in my opinion, as turning on such a fan in a tight shower stall tends to cause the curtain to blow in and stick to one's body. Having it tend to waft outwards is pleasanter.

I assume you've probably thought of this, but just in case you have not: put in a towel bar somewhere. I like to believe that a towel is less likely to slip off of a square one (such as I've installed in my motorhome) than a round one, but I'm not sure that it actually makes any difference.

Edit: if you leave the shower compartment door open while showering (and use just the curtain to keep water where it belongs), the inside of the bathroom compartment door would be a decent place to hang a towel. If you have it some other place in the van to dry, you could just toss it on your kitchen counter or something before stepping in the shower and reach it when you need to dry off.

Here's a question for you : Where's the best place to put my towel when I take a shower?

If I put a hook somewhere the towel will all get wet during the shower, unless I put a couple of hooks behind the door and pull the shower curtain over it when I take a shower?

Alabama Jim wrote:
You are talented. Nice work and I pray you enjoy it very much.

Thanks, I hope I do, with all the time and money I've been putting in this project, countless hours of reading and searching the internet.

Houston Remodeler wrote:
How were you fixin' to waterproof the shower ?

Like I said, the shower base/floor will be covered with fiberglass (resin+cloth+resin+gel coat)

The outside insulated wall will be covered with 3/8" thick plywood and I will glue some plastic sheeting with plastic corners (4 walls and ceiling) and add tons of silicone.

I you look at the pictures I added a raised contour to the base (one side missing in the picture) the plastic sheets will end behind that and I will silicone the joint.

How were you fixin' to waterproof the shower ?

You are talented. Nice work and I pray you enjoy it very much.