Replies

1. 
   DanH | May 06, 2007 03:13pm | #1

   I think that's what I used on ours. Been good for ten-fifteen years now. Observe caulking instructions (if any). Just two realtively thin lines of caulk below the threshold, placed to mate with ribs in the threshold. But also caulk the corners, even if they don't say anything about that.

   If the slab is not flat, be sure to fill any low spots first. Thinset works well for this.

   So convenient a thing it is to be a reasonable Creature, since it enables one to find or make a Reason for everything one has a mind to do. --Benjamin Franklin
2. 
   DanH | May 06, 2007 03:15pm | #2

   BTW: If you really want to do it up right, and the threshold has a suitable hollow under it, you can place a "rib" of thinset to mate with that hollow and form a curb of sorts.

   So convenient a thing it is to be a reasonable Creature, since it enables one to find or make a Reason for everything one has a mind to do. --Benjamin Franklin
3. 
   Matt | May 06, 2007 03:33pm | #3

   Polyurethane caulk will work fine.

   Here is the key though - use at least a whole tube on each door, both to seal the brickmold (or whatever) to the wall and in particular under the threshold.

    

4. 
   Dozerjohn | May 06, 2007 03:47pm | #4

   thanks, guys.  I'm going out to get it this morning and hope to get it done today.

   Dozerjohn