Foam Shower Pan Base

It sounds like a foam shower pan base would be a lightweight alternative and a short-term solution. Such is not the case with this foam. Here's the appeal of the bases of this sort and the drawbacks...

A shower liner for tile is necessary to keep all the water in the shower and not in the surrounding areas. That's the case because tile floors are not waterproof and neither are the walls for that matter. Especially at the grout liners the water that hits the floor partly soaks through the floor. What stops it?

In the case of typical mortar shower bases it's a liner membrane that gets sandwiched into a pair of layers of mortar. If that sounds like a major project it should because it is. Answer???

Kerdi makes a foam shower base that performs the same function as the masonry base but just makes the construction as simple as putting the tile ready shower pan in place. The waterproof layer then goes over the base in sheet form and then the tile goes on top. Thus most of the mess and the mortar work are all but eliminated.

Not only that but the same waterproofing material that works on the floor can be incorporated in the shower wall construction too.

Tile showers must include a liner to stop the water. Kerdi-Schluter has a foam shower pan liner that is simpler to install than mortar bases and the price is really the only obstacle...