mosiac tiling on outside wall?

Hi,

I have a section of plywood underneath a frosted window (beside our front
door) that I was interested in putting some ceramic tiles on. I've done a
fair bit of wall and floor tiling inside the house, so I know some of the
basics. However, because I will need to tile on an existing vertical
surface I'm not sure of two things: what type of
mastic/mortar/thinset/glue/whatever to use (the wall is protected from
direct moisture, but it is outside); is it possible to set small mosaic
tiles on a vertical wall without them moving/falling?

thanks
doug

In article ,
says...

However, because I will need to tile on an existing vertical
surface
Treat it like "bathroom shower stall" or any other wall that has
vertical tiling. You'll need to make sure that the plywood
isn't delaminating, and you should sand it down to expose
fresh bare wood - removing all loose paint or varnish.

Hi Doug

Step one is to sand and prime the surface the tiles will be affixed
to.
Good waterproof tile adhesive can be obtained from most swimming pool
supply houses along with a UV protected vinyl based grout for swimming
pool use. Going to this extreme may be overkill since it won't be
underwater, but it will be more likely to hold up through harsh
winters if you have them where you live.

TTUL
Gary

that's what thin set is for. It's thick enough to provide plenty of
"grab" so the tiles won't fall. When tiles get bigger (12 x 12's) then
you apply the mastic and the spacers....on a vertical surface.

Andy

doug wrote in message 45...
Hi,

I have a section of plywood underneath a frosted window (beside our front
door) that I was interested in putting some ceramic tiles on. I've done a
fair bit of wall and floor tiling inside the house, so I know some of the
basics. However, because I will need to tile on an existing vertical
surface I'm not sure of two things: what type of
mastic/mortar/thinset/glue/whatever to use (the wall is protected from
direct moisture, but it is outside); is it possible to set small mosaic
tiles on a vertical wall without them moving/falling?

thanks
doug