I have three Sonotubed rounds that are about 24" high, 30" diameter. They
are exterior, and get snow and rain and direct sun. I would like to cover
this now bare concrete. Ideally, I'd like to tile them using small tile,
say 2" square, or smaller, or scraps, or odd rectangulars, and use some
Mexican and unique 4x4 and 6x6 tiles we have.
What type of mortar/grout/adhesive should I use so that they do not pop off
with freeze thaw cycles? Or should I just do the horizontal tops with tile,
and then do a colored grout on the vertical round sides?
I want to dress these up, but don't want to be forever patching and
reattaching. Is this possible, or should I just use colored mortar or grout
on the round vertical sides, and then use a few tiles on the top to dress
The usual - thinset.
It freezes very seldom where I live but I see no reason why frequent
freezing/thawing should affect adherance of the tiles. Bricks are fastened
to lots of things, ever see a pile of bricks at the bottom of a wall after a
Uh, unless this is that faux brick stuff attached to a vertical mudbed
with chicken wire in it, bricks aren't really attached to the wall- they
are attached to each other, with an air space behind. Only thing tying
the brick to the wall is those metal straps every few courses
vertically, and every few feet horizontally. OP's concern is valid. Yes,
I have seen outdoor decorative tile pop off when water gets behind it
and freezes. I'd be inclined to go with a mastic that stays flexible,
and then grout. Or better yet, stop by local pro masonry supply house,
and ask them what the real guys use for that application, and buy what
they recommend. They should know what works in that area.
Steve, the failure of most exterior tile and stone work has to do
with water getting into the materials. It is essential to use
tile or stone that is rated for exterior work, won't absorb water
and installing in such a manner as to shed water well (make sure
the tops of your column stubs have slope). Most stone requires a
sealer of some type to keep water out.
For ease of care, I think I would consider a Dryvit type EIFS
finish coat on the stubs. Quite tough, fairly easy to install,
choice of colors, etc.
Keep the whole world singing . . . .
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