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Mannington MUL - Floating floor again



"Mannington MUL - Floating floor again," in the Vinyl Flooring Q&A forum, begins: "Hi ...I am new here. Great forum. I am considering (as an experienced DIY) to put down a Mannington Adura ..."

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Old February 26, 2009, 10:15 AM   #1
headrc
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Mannington MUL - Floating floor again


Hi ...I am new here. Great forum. I am considering (as an experienced DIY) to put down a Mannington Adura premium vinyl tile on floors that have exhibited movement in the last seven years since I first put down a cheaper grade vinyl. As such I am considering making this a floating floor. Mannington has a product called MUL that a rep is trying to sell me. As I understand it it is simply an underlayment that has seams that glue together and you glue the tile directly to it ...creating a floating floor. Has anyone had experience with this product? If not ...maybe similar products? And I am still not totally convinced on the floating floor idea yet....any input here would be appreciated as well. The existing vinyl floor has 3/4" sanded one side ply under it. The exisiting vinyl is the cheap self/adhesive type and it has moved all over the pace. The house is a 100 year old farm house which now has radiant heat installed under the floors (no the heating has not exceeded 85 degrees and the old vinyl had moved way before it was installed). Thank you, RH

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Old February 26, 2009, 10:33 AM   #2
Mike Sahli
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Re: Mannington MUL - Floating floor again


Hello headrc, welcome , i haven't worked with this product but it sounds like another product called Versa-Shield that we use allot of. The idea of these loose lay underlayments is to give you a bonding surface for your new glue down product. We run into floors that we can't glue to ( strand board , particle board etc. ) or can't sand and prep ( old asbestos floors ) and Versa-Shield works great in cases like that. You still need to get the floor as smooth and flat as possible.

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Old February 26, 2009, 01:26 PM   #3
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Re: Mannington MUL - Floating floor again


Thank you for the reply. One other question that I am struggling with is ....is a floating floor actually a better approach if you have a choice between glued down and floating? I ask this because right now two different sales sources, given the same information I outlined here are giving me two different answers. One says float it with the Mul product and the other says to take up the old tile and use 1/4" luan for a subfloor material and glue down. Any thoughts on this? Again ...the current floor has shown movement and it was put down over sanded 3/4" ply. Thx again, RH

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Old February 26, 2009, 02:07 PM   #4
Mike Sahli
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Re: Mannington MUL - Floating floor again


In situations where the flooring is well bonded but is showing visual signs of floor movement, like plywood panel telegraphing ( you can see the outline of the underlayment ) i would consider using a floating system. This way the floor can move independently of the flooring and should hide most of the issues associated with floor movement. If you choose to underlay the floor and glue down new flooring, use a quality 1/4" underlay like Halex. I don't believe any body will warrant flooring glued to luan board, some of the others here might know more about whether there is a luan that is rated for underlayment use. If your existing flooring is lifting and coming off the floor due to floor movement, you will need to do some structural improvements or even a floating floor will have trouble.

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Old February 26, 2009, 02:45 PM   #5
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Re: Mannington MUL - Floating floor again


The seams in MUL or Underfloor are taped not glued. You want the floor/UL to float and it can't do that if you glue the seams.

I prefer to use ply underlayment but MUL works fine too. Allow for expansion/contraction at transitions when using the floating method.

While the products are similar to VersaShield they are different as far as moisture control and stability.
They are less than half the cost of VersaShield too.

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Old February 26, 2009, 02:53 PM   #6
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Re: Mannington MUL - Floating floor again


The Versa-Shield product is taped at the seam also. After taping the two pieces together, you use a modified cement patch to blend in the edges of the tape.

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Old February 26, 2009, 03:00 PM   #7
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Re: Mannington MUL - Floating floor again


How much do you pay for the Versa Tape? Expensive tape huh.

You use a cellaphan (sp?) tape with the other 2. No need to skim seams.
Don't use duct tape it will telegraph through your vinyl.

MUL and Underfloor are like virgin sheet vinyl.

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Old February 26, 2009, 03:09 PM   #8
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Re: Mannington MUL - Floating floor again


Yes, the tape is expensive and prepping the edges takes more time. I will do some comparisons between the three. If the MUL or Underflor work as well as Versa-shield and cost about the same, i will probably switch.

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Old February 26, 2009, 03:31 PM   #9
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Re: Mannington MUL - Floating floor again


Definitely check it out.

VersaShield gives you a more stable product and able to install a greater variety of products with it. VersaShield is the better product for some situations.

The other 2 are basically just for their products, the luxury vinyl tiles and planks. I've been told that the guy who came up with the method/product used to work for Nafco but couldn't convince them to use it, he went to Congo and they ran with it. I've also been told that you can use it for PermaStone as well now.
MUL and Underflor are the same product just packaged for each label.

Although I haven't had any problems with them I still have some reservations whether they will work with the different products that are going to be tried. Main one that I am leary about is if the tiles will curl? I see samples glued to boards in showrooms that are curling, will that happen on the floor?

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Old February 26, 2009, 03:36 PM   #10
Mike Sahli
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Re: Mannington MUL - Floating floor again


I agree with stullis on this, there isn't much of a track record with any of the floating underlays. I have had good success with the Versa-Shield product and would like to hear from others who have used MUL or Underflor.Anybody have any experience?

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Old February 26, 2009, 05:33 PM   #11
headrc
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Re: Mannington MUL - Floating floor again


It sounds to me that floating the floor could be a good idea in my case. But now comes technical questions on how to do this in a kitchen with stove, cabinetry, fridg, wife's antique storage cabinet etc. It seems to me like it could a pain trying to lay tile up to around the cabinetry and not under it (for instance I have a cabinet whose side is not up against an outside wall .....it is right at the entryway to the kitchen with no shoe mold or anything at its bottom and a highly figured edge on it). As I understand it you do not lay a floating floor under cabinetry ≥...but what about the stove, fridg and then the antique cabinet that is not attached to anything? If you lay it under these items ....what happens when the wife moves them to clean under them? Sorry for the novice questions but that is what I am on this topic. Thx, RH

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Old February 26, 2009, 07:31 PM   #12
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Re: Mannington MUL - Floating floor again


Evan though mannington calls for a 1/8" expansion joint around the finished floor when installing over MUL, i don't believe you would have any problem with putting furniture and appliances on top of this system, wouldn't make much sense if you couldn't put any thing on your new floor. Any body else have any input?

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Old February 26, 2009, 09:36 PM   #13
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Re: Mannington MUL - Floating floor again


headrc said View Post
Thank you for the reply. One other question that I am struggling with is ....is a floating floor actually a better approach if you have a choice between glued down and floating? I ask this because right now two different sales sources, given the same information I outlined here are giving me two different answers. One says float it with the Mul product and the other says to take up the old tile and use 1/4" luan for a subfloor material and glue down. Any thoughts on this? Again ...the current floor has shown movement and it was put down over sanded 3/4" ply. Thx again, RH
What exactly do you mean by movement? Deflection (up and down) or lateral?
Also, the original floor was installed directly over the 3/4 without any underlayment? Very well could be the reason you are having movement. There should have been an underlayment (1/4 inch material like Halex or Mulitply. Luaun has been a warranty breaker for resilient manufacturers for over 25 years.) over the 3/4 subfloor to begin with.

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Old February 26, 2009, 10:15 PM   #14
headrc
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Re: Mannington MUL - Floating floor again


If I understand correctly ...it would be movement laterally (tiles sliding). Yes the tile was put down directly on the 3/4" ....but I was led to believe that was a correct installation at that time. The grade of plywood was supposed to be proper for gluing tile directly to it.

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Old February 27, 2009, 08:53 AM   #15
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Re: Mannington MUL - Floating floor again


Is the 3/4" the only layer of subfloor? Is there a second layer under the 3/4"?

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