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Floating a Mortar Bed on a Balcony

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  • #16
    Re: Floating a Mortar Bed on a Balcony

    Your plan is about 20 years behind the times. I would look at waterproofing applied OVER the mortar bed, if you use mortar at all, which many here would not.
    Bailer Hill Construction, Inc. - Friday Harbor, WA
    Website - Facebook

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    • #17
      Re: Floating a Mortar Bed on a Balcony

      Originally posted by tjbnwi View Post
      Again just something I have noticed, I know I would not leave an exposed edge.

      Tom
      Tom,
      Certainly just exposed mortar would not look good. A better approach would be to tile this surface also. I will have to think about this, I would have to have the mortar bed stop short of the edge as I wouldn't want the edge tile to stick out over the edge of the balcony.

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      • #18
        Re: Floating a Mortar Bed on a Balcony

        The exposed mortar would be a problem as it would suck in moisture and that would expand and pop tiles. After several cycles the lime would leach out and it would become crumbly. A really bad Idea.

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        • #19
          Re: Floating a Mortar Bed on a Balcony

          Originally posted by Kgphoto View Post
          The exposed mortar would be a problem as it would suck in moisture and that would expand and pop tiles. After several cycles the lime would leach out and it would become crumbly. A really bad Idea.
          KG, there shouldn't be any lime in the deck mud in the first place.

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          • #20
            Re: Floating a Mortar Bed on a Balcony

            Pesto, if you want to spend the money, the Laticrete Plaza and Deck System is a great way to do an exterior installation like this.

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            • #21
              Re: Floating a Mortar Bed on a Balcony

              Originally posted by Robert Z View Post
              KG, there shouldn't be any lime in the deck mud in the first place.
              You are correct. I used the wrong terminology. It is the salts that leach out, called efflorescence.

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              • #22
                Re: Floating a Mortar Bed on a Balcony

                Congratulations, KG just hit 4,000 posts.
                .
                ....Bob Lavery
                "One should not make more assumptions than the minimum needed."
                William of Occam quote

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                • #23
                  Re: Floating a Mortar Bed on a Balcony

                  Originally posted by PaliBob View Post
                  Congratulations, KG just hit 4,000 posts.
                  .
                  And 3,845 of them were arguing with the monkeys in the drywall forum. :)

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                  • #24
                    Re: Floating a Mortar Bed on a Balcony

                    STOP! Before tiling or waterproofing a deck, do a lot more research. The edge detail is one of many important details that if not done right, will kill the deck dead in 5-8 years...

                    Mer-Krete has a detail at their www.merkrete.com site that shows a double flashed edge with a wood stop strip to hold the mortar bed at the edge and gives you a nailer to for the secondary flashing piece.

                    Check out www.deckexpert.com for more information on waterproofing decks, I have put up lots and lots of free info for you to utilize!

                    Make sure to read Duradek's president/ownerJohn Oglivie's article on tiling decks...

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                    • #25
                      Re: Floating a Mortar Bed on a Balcony

                      Hey Thanks Guys. I didn't notice the milestone.

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                      • #26
                        Re: Floating a Mortar Bed on a Balcony

                        Originally posted by pestocat View Post
                        I will be floating a mortar bed on a balcony 4 ft. wide by 11 ft. long. There is nothing to confine the outside edges of the bed. How is this non confinement handled. Do I float to the edge and use a steel trowel to make a sharp cut just short of the edge and just make sure I have it compacted well. Maybe use my hand to confine the mortar at the edge. A little excess will fall off the edge. Is this the way it is done? After reading Michael Byrne's article "Tiling an Outdoor Countertop", it seems I could add temporary edging to the bacony facia that would be at the finish height of the mortar bed. Seems like a solution.

                        Project complete except for a little facia detail. Here is a photo album for the details. http://forums.jlconline.com/forums/album.php?albumid=38
                        Thank you for all the discussion and support.

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