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Tranquility 4mm vinyl planking is cupping



"Tranquility 4mm vinyl planking is cupping," in the Vinyl Flooring Q&A forum, begins: "First time posting, first time reading here as well really. I've got an issue with a click vinyl floor I ..."

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Old September 24, 2013, 05:12 PM   #1
Fiodh
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Tranquility 4mm vinyl planking is cupping


First time posting, first time reading here as well really. I've got an issue with a click vinyl floor I installed around 5 months ago (Tranquility Shenandoah MT American Cherry 4mm to be very specific). and I am well and truly stumped.
I installed the floor in a halfbath, laundry room, and kitchen, the longest stretch being around 35 feet (which was in the same direction the planks were installed), with no transition moldings.
Months later the customer told me they were having separation issues, so i went to check it out.
A few end joints were coming apart on one side of the kitchen (which turned out to be caused by the ridiculously heavy, ancient fridge. So heavy it left deep indentations in the vinyl where the wheels rested). I ended up tapping the joints back together, and put 1/8" thick plywood boards down under the wheels to hopefully help dissipate some of the weight.
The issue that's troubling me, is all the way on the other side of the kitchen. There is a section (roughly 6'x2' along the length) in which the individual planks are cupping, and I cant for the life of me fathom why.

Some details:
The floor was acclimated for a week (i tend to not trust manufacturers, after several incidents involving floating bamboo, so i tend to acclimate for a long time)
Moisture tests checked out ok (even though its vinyl, i figured better safe to check)
Proper temperature range has been maintained
Recommended cleaning methods have been used
There was originally, and still is, 1/4" expansion space at all walls/bind points
Doors are properly undercut
Installed on first floor of house with fully finished basement beneath
Padding used was "Eco Silent Sound HD Underlayment"

Here's a picture of the most noticeable spot (unfortunately it doesn't show the cupping very well)
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Last edited by Elmer Fudd; September 25, 2013 at 10:58 AM.
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Old September 24, 2013, 05:27 PM   #2
Mike Antonetti
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Cupping to me means convex viewed from top meaning the center is higher than edges. Dishing means concave where edges are higher than middle of plank. I've seen dishing less than a month after installing throughout floor but customer wasn't complaining about this( so far ) just some grit noises when walked on in spots.
Seems if it's in one area it's environment. Guess you've factored out sunlight? I haven't installed any over a rolled underlayment .

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Old September 24, 2013, 05:46 PM   #3
Fiodh
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I've not factored out sunlight. There is a window that could be letting a beam of light in, hitting that area of floor, but i hadn't found out about that possibility until I had left for the day. I plan on checking when I go back out. What specifically should I be looking for in that regard?

Dishing, as you state, is exactly it.


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Old September 24, 2013, 06:25 PM   #4
Mike Antonetti
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There are inspectors as well as factory reps on this site, they haven't found your topic yet, but soon will. I'm not familiar with those products that you installed and can't generalize with others. I'm in the same boat as you.
Tomorrow were installing gluedown 1/16" thick vinyl plank gigantic window, I didn't check the I phone compass while prepping.
Temperature may heat up to over acceptable limits. I would also contact manufacturer, they may be familiar with exact situation of their product. Let us know what you find out.

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Old September 24, 2013, 07:16 PM   #5
Elmer Fudd
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Fiodh said View Post
I've not factored out sunlight. There is a window that could be letting a beam of light in, hitting that area of floor, but i hadn't found out about that possibility until I had left for the day. I plan on checking when I go back out. What specifically should I be looking for in that regard?
Dishing, as you state, is exactly it.
The installation instructions and the warranty tell you........(you have read them....... right?).

If you have been installing for LL for seven years, this can't be your first rodeo!!!

Sorry, I had best shut up and quietly go away!

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Old September 24, 2013, 07:37 PM   #6
Mike Antonetti
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Yeah that was a lot of help! You could read some other threads here about sun affecting vinyl plank, I guess you're not allowed to have windows in your house .
Who knows it may not be the source of problem.

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Old September 25, 2013, 03:47 AM   #7
Chris Mha
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To my knowledge you cannot put a cushioned underlayment under a floating click vinyl plank.

I have had several customers ask about this and all the manufacturers that I deal with have said no.

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Old September 25, 2013, 03:57 AM   #8
Mike Antonetti
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That sounded questionable to me also, I do not know if they designed a "cushion,pad,underlayment" for underneath this specific product. With flexibility of underlayment I can see where separation may be an issue.

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Old September 25, 2013, 04:11 AM   #9
Elmer Fudd
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Mike Antonetti said View Post
That sounded questionable to me also, I do not know if they designed a "cushion,pad,underlayment" for underneath this specific product. With flexibility of underlayment I can see where separation may be an issue.
From the install instructions.

PRODUCT USE
TRANQUILITY Resilient Click Flooring may be installed on all grade levels. TRANQUILITY is designed as a floating floor and should not be glued, nailed or attached to the subfloor. TRANQUILITY may be installed with or without an underlayment. When doing so, the recommended underlayments are Bellawood Premium and ECO Silent Sound. These high quality underlayments best support the joints while ensuring superior thermal and sound reduction qualities and is highly recommended for condominium associations, project planners and building specifiers.

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Old September 25, 2013, 04:20 AM   #10
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Elmer Fudd said View Post
From the install instructions.

PRODUCT USE
TRANQUILITY Resilient Click Flooring may be installed on all grade levels. TRANQUILITY is designed as a floating floor and should not be glued, nailed or attached to the subfloor. TRANQUILITY may be installed with or without an underlayment. When doing so, the recommended underlayments are Bellawood Premium and ECO Silent Sound. These high quality underlayments best support the joints while ensuring superior thermal and sound reduction qualities and is highly recommended for condominium associations, project planners and building specifiers.
I guess I was wrong. Theres a first time for everything.

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Old September 25, 2013, 04:52 AM   #11
Mike Antonetti
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Nice follow up Elmer, I'm done learning for the day, all before 8 am!

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Old September 25, 2013, 05:13 AM   #12
Elmer Fudd
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I am NOT disrespecting anyone here, this is a comment for everyone.

My snarky comment above was "you did read the instructions......right".

Why did I make that???????? Cause all of us FAIL to READ the instructions!!

For some we go ahead and install the product, for others we post without knowing what we are saying

Sorry, but this is a pet peeve of mine!!!! and sometimes (after a long day of ) I slip and get all snarky with some poor slob!!!

Again just ignore me this week!!

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Old September 25, 2013, 05:18 AM   #13
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Elmer Fudd said View Post
I am NOT disrespecting anyone here, this is a comment for everyone.

My snarky comment above was "you did read the instructions......right".

Why did I make that???????? Cause all of us FAIL to READ the instructions!!

For some we go ahead and install the product, for others we post without knowing what we are saying

Sorry, but this is a pet peeve of mine!!!! and sometimes (after a long day of ) I slip and get all snarky with some poor slob!!!

Again just ignore me this week!!


You......you..........SNARK!

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Old September 25, 2013, 06:09 AM   #14
Hanover Fist
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Ignore who?
Did you hear sumthin'?

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Old September 25, 2013, 10:23 AM   #15
Fiodh
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No disrespect taken.
Ok, so lets talk about sunlight causing an issue. Could you explain this to me? Keep in mind I will have to explain this to a customer with little to no knowledge of the field.
If it's the sunlight, who's in the wrong? Would it be an instillation error, a product issue? Who has to bite the bullet on this?

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