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#1
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ceramic tile install
I'm at wits end with a small repair to a bathroom ceramic tile floor.
I had to secure about 50 2" x 2" tiles that had become poorly attached. Original bond was thinset, but I believe the movement of the floor over 15 years created the issue. So, I decided to use the ceramic tile adhesive to replace them. After one week, some of it has dried and some of it has not. The material that has dried is not thoroughly dry and the tiles can be moved slightly. The material that never dried (six tiles) allowed me to lift the tiles right off the floor. I applied new adhesive today and will see if it will be successful. What I don't understand is why this material fails to properly dry? I've used it before with similar (poor) results. Anyone else have this issue? |
#2
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I have never had this issue. Are you using the proper notched trowel?
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1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12 1982 380SL 1978 450 SEL 6.9 euro restoration at 63% and climbing 1987 300 D 2005 CDI European Delivery 2006 CDI Handed down to daughter 2007 GL CDI. Wifes |
#3
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I had a similar situation. Whole bathroom floor failed. Closer inspection of the pre-mixed setting material recommended at Home Depot revealed fine print which stated not to use in moist environment.
Had to completely redo the floor. I don't know the proper name of the setting material I used the second time but it came as a powder and I had to mix it myself. No more pre-mixed materials for me.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#4
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thinset
moist environment = thinset
dry environment = glue or mastic
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2009 E320 Bluetec 117,000 1995 E300D 306,000 Sold 1996 Ford Taurus LX 130,000 Sold 1985 300TD Still 225,000 Sold 2016 Ford Fusion 24,900 |
#5
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Thinset!!!..........
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Matt (SD,CA) 1984 300SD.. White/Chrome Bunts..Green 1997 2500 Dodge Ram 5.9 Cummins 12 Valve 36 PSI of Boost = 400+hp & 800+tQ .. ..Greenspeed 2004 Dodge Ram 2500 4x4 Quad Cab Cummins 5.9 H.O "596hp/1225tq" 6 spd. Man. Leather Heated seats/Loaded..Flame Red....GREENSPEED Global warming...Doing my part, Smokin da hippies.. Fight the good fight!...... |
#6
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Quote:
Use multi-purpose dry set thinset, mixed with water, slaked properly, to set the tiles.. Consult the TCA (Tile Council of America) Handbook, on-line, for further information on industry recognized installation materials. |
#7
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Use thinset. What was the substrate - durock?
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1984 300TD |
#8
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I think that stuff is recommended primarily for wall tile. I've used it on kitchen walls to good effect. I did have a serious drying problem once. I was putting up 12" x 12" lattices of little 1/2" square tiles on a kitchen wall. I thought all the spacing would allow it to dry out but after it went a few days w/o drying I took a closer look at the back of one of the squares. The bits of paper-like binder were translucent so I didn't realize that there was a lot more of it than I had thought and there really wasn't much room for evaporation.
I drilled a 3/16ths hole at every corner, gently so as not to go clear through the sheet rock and it finally dried. I saw some guys on a job once using a two part epoxy like tile cement. Never bought it. You might try the John Bridge tile forum. Some excellent advice to be had there.
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1986 300SDL, 362K 1984 300D, 138K |
#9
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The substrate is plywood.
I specifically wanted the mastic, instead of the thinset, because it's far more forgiving on a wood floor that's not stiff enough. The thinset provides no capability of movement............the mastic effectively provides unlimited capability. The floor is a single sheet of 3/4" plywood with a sheet of 1/4" luan on top..........not very stiff. If the damn stuff would only dry............. |
#10
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Hardibacker..........
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Matt (SD,CA) 1984 300SD.. White/Chrome Bunts..Green 1997 2500 Dodge Ram 5.9 Cummins 12 Valve 36 PSI of Boost = 400+hp & 800+tQ .. ..Greenspeed 2004 Dodge Ram 2500 4x4 Quad Cab Cummins 5.9 H.O "596hp/1225tq" 6 spd. Man. Leather Heated seats/Loaded..Flame Red....GREENSPEED Global warming...Doing my part, Smokin da hippies.. Fight the good fight!...... |
#11
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Quote:
Your substrate's deflection is not supposed to exceed 1/360th degree of span. In addition, tiling to plywood, wonderboard, durock, hardibacker board, whatever, without a vapor-moisture membrane..........that's a no no too. --None of those products are waterproof.. Any plywood should be double thicknesses -- 3/4" marine-grade. Mastic is usually a disaster, and a waste of money.. |
#12
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Quote:
HUH?....... http://www.jameshardie.com/homeowner/backerboard.shtml
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Matt (SD,CA) 1984 300SD.. White/Chrome Bunts..Green 1997 2500 Dodge Ram 5.9 Cummins 12 Valve 36 PSI of Boost = 400+hp & 800+tQ .. ..Greenspeed 2004 Dodge Ram 2500 4x4 Quad Cab Cummins 5.9 H.O "596hp/1225tq" 6 spd. Man. Leather Heated seats/Loaded..Flame Red....GREENSPEED Global warming...Doing my part, Smokin da hippies.. Fight the good fight!...... |
#13
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Quote:
As far as "HUH?" goes, Hardie isn't waterproof. --And it never was. "Read" what you linked to. |
#14
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Quote:
Hello...He's referring to bathroom floor....Not a shower enclosure..no water barrier/membrane needed...How long have been a flooring contractor?
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Matt (SD,CA) 1984 300SD.. White/Chrome Bunts..Green 1997 2500 Dodge Ram 5.9 Cummins 12 Valve 36 PSI of Boost = 400+hp & 800+tQ .. ..Greenspeed 2004 Dodge Ram 2500 4x4 Quad Cab Cummins 5.9 H.O "596hp/1225tq" 6 spd. Man. Leather Heated seats/Loaded..Flame Red....GREENSPEED Global warming...Doing my part, Smokin da hippies.. Fight the good fight!...... |
#15
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YOur situation with ply plus luan is hopeless in terms of ever getting anything to last long term. Moisture susceptable and too flexible. So it is against all rules.
But if I wanted to limp along and just do a temporary repair that might last a few years I would glue the tile down with epoxy and use silicone to caulk the joints. When the silicone dries it looks very much like natural grout. Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
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