Will peel and stick smart tiles work above tub surround?

http://www.doityourself.com/stry/how-to-apply-peelandstick-vinyl-tiles-to-bathroom-walls

I think the heat and humindy will make them fall off in no time at all

putting peel and stick tiles in a shower. The wet condition will be disastrous, the tile will peel off but not before black mold proliferates. But if you really wanted peel and stick you could get groutable peel and stick tiles. And seal the grout well. And caulk with silicone.

Nope - they will be temporary at best.

I put the tile-look panels around the top of my shower, using liquid nails to adhere it. Then I siliconed the corners and edges. It looks like tile, but keeps the moisture out. HD will cut the panels to size for you.

I don't think that product would stay nice after being around that amount of water and moisture. But you can always go to the manufacturer web site, most of them give you a way to ask questions, or a phone number listed on the product.

It is not adviseble, as you will be "steaming" them on a regular basis, which will un-do the adhesive. smart tiles are best used as a kitchen backspash application - but to apply them, primer & let air dry for a few days, then apply the smart tile, also, surface must not be porous.

Even with the constraint of use in the bathroom, you could try it - at your own risk - just be aware that it may start to "peel" after awhile. Good luck!