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Old 05-13-2006, 04:51 PM   #1
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Mud Work (lot'sa posts)

[Link to deck mud (shower floor) calculator; more info below]

Close up pictures of deck mud being mixed, along with a brief explanation of the process.

http://www.johnbridge.com/deckmud.htm

Last edited by Tiger Mountain Tile Inc; 12-26-2014 at 07:45 PM. Reason: add deck mud calc. link
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Old 07-02-2006, 10:37 AM   #2
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Deck Mud Calculator

Here is a link to a deck mud calculator DaveM put together. A real handy tool for estimating how much material you'll need for your shower floor.

Shower Floor Deck Mud Calculator




If you are building a Kerdi shower, see next post below.
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Old 08-06-2006, 09:24 AM   #3
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Deck Mud Calculation for Kerdi Shower Floors

The Mud Calculator can also be used for a Kerdi shower floor. However, since a Kerdi floor has one layer instead of two, a few minor tweeks to the calculation process is required.


Illustration - Shower size is 4' x 6' (48" x 72").

Referring to the example below:
  • Depth of the mud bed at the drain is installer determined, in this case 1 ľ”.
  • Depth at the far wall using the ľ” slope per foot of run rule will be 2”.



We now have all the numbers necessary to complete the Input section of the Mud Calculator depicted below. Important note - you only need the Preslope input and output section of the Calculator. Totally ignore the Top layer deck mud thickness, leaving the default value of 1.5” as is.
Data input looks like this:

Solution - Deck Mud requirements for this Kerdi shower floor example is:
260 lbs. of Sand Topping Mix plus an additional 130 lbs of sand
-or-
65 lbs. of Portland cement plus 325 lbs. of sand.






Related Liberry articles

If this is your first Kerdi shower you might want to review the Kerdi Drain Rough-In article here. http://johnbridge.com/vbulletin/showthread.php?t=28637

And if you are unfamiliar with the term Deck Mud or how to make it, a review of these threads should be helpful. Deck Mud and Fat Mud and Deck Mud (Dry Pack Mortar) for Shower Floors

Furthermore, if this is your first go at building a shower, this Shower Construction Thread is a "must" read.

Last edited by Tiger Mountain Tile Inc; 12-30-2014 at 03:18 PM. Reason: reroute dead link
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Old 03-26-2007, 07:46 PM   #4
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Fireplace hearth - tiling over brick

Prepping brick for tile can be done a couple ways. If your brick is flat
without any major humps and bumps its safe to simply clean it up and
notch trowel over it with thinset.
If your brick isn't flat you might want to consider floating a new flat
and level float job right over the top to create a nice setting surface.

To prep for your mudjob you will need to clean the brick. A bucket of
water with a scrub bush to loosen the dirt and a sponge to wipe it up
will be needed. After cleaning the brick wipe it with a wet sponge a couple
more times to allow the brick to absorb water. You can also use a spray
bottle for this. Wetting the brick will help to stop the thinset and mud from
drying to fast and provide the best bond possible.

For this simple hearth i have used form boards made from clear redwood
screwed together at the corners and adjusted with shims to the desired
height. The height was determined prior to building the rest of the fireplace
with the intention of floating over the brick from the beginning.
While leveling the form boards close attention to making them square
should be made as well.
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Old 03-26-2007, 07:55 PM   #5
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After the water has been absorbed by the brick and no more puddles
are visible you can begin work. For this application a modified thinset
was used to bond deck mud (play sand mixed 4-5 parts sand to 1 part
portland cement) Un modified thinset will work fine but i chose to work
with what was on the job.
Using a medium notch trowel, 3/16" v-notch or similar cover the entire
surface of the brick with thinset. Proceed after this by covering the
thinset with deckmud quickly to prevent the thinset from drying
out or "skinning over".
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Old 03-26-2007, 08:03 PM   #6
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Spread the deckmud around and cover the thinset completely.
This will keep the thinset from skinning and keep the integrity of
the bond. The next step is to fill in the area being floated just above
the level of the form boards. Using a wood/resin or mag float compact
the deck mud with a medium to firm arm swing. The mud doesnt need
to beat to death but it should hold its place while shaping.
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Old 03-26-2007, 08:11 PM   #7
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The last step in this process is to shape and finish the mud.
By using form boards the perimeter and plane of the mud
has already been created eliminating any need for additional
screeds. A metal or wood straight edge can be used to ride
the form boards while cutting the surface of the mud. With a
very light touch the float (resin/wood/mag) is used to smooth
out the final surface. Allow the mud to cure over night and
the boards are ready to be pulled off and the mud ready to tile!
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Old 03-26-2007, 08:12 PM   #8
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Voila! Old brick is updated with a new look.
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Old 02-16-2011, 07:34 PM   #9
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Mud Walls: Floating a Tub Surround

Mud Walls: Floating a Tub Surround - Part 1

I waited for the video to come from the mudcourse, "Alas" lol...Yet to see it. A friend caught wind from a post I made on facebook that I was going to be floating a tub surround and asked for pics. Well, since I have recently aquired an Ipod from my son that actually takes pretty nice video I decided to make one. I edited out quite a bit of stuff that was off screen and in an attempt to keep it to the file size allowed by youtube, This is what I came up with. "Floating a tub surround" : Don't be too hard on me, I'm no film maker....
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Old 02-16-2011, 09:05 PM   #10
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Mud Walls: Floating a Tub Surround - Part 2

Here is:Part 2. I will add 3 and 4 tomorrow. For what its worth, enjoy.
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Old 02-17-2011, 09:34 PM   #11
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Mud Walls: Floating a Tub Surround - Part 3

Part 3: Floating a tub surround.
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Old 02-17-2011, 09:50 PM   #12
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Mud Walls: Floating a Tub Surround - Part 4

Last but not least, Floating a tub surround part 4. This installment shows the finished tile job as well. I hope this helps someone. If I was trying to make money from this, I would have spent a lot more time and energy making it. Again, If it helps someone, I will be satisfied. Enjoy.
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