LVP failure

[Mikey P]

The contractor glued each LV-Plank to the concrete subfloor "because I've always done it this way"..

6 months old..

 

[Jim Pemberton]

 

[hogjowl]

It’ll lay back down once you stop padding it

 

[scotty747]

Why not wand it? If its glued down it shouldnt matter if theres gaps.

 

[BIG WOOD]

Why not wand it? If its glued down it shouldnt matter if theres gaps.

Its probably hard to get a good vac connection with the wand on that cupped floor

 

[Nomad74]

Good lord.

 

[Dolly Llama]

if that's glue down plank and not floating clicklok, where did the installer screw the pooch?

wrong glue or material wasn't acclimated?


..L.T.A.

 

[Mikey P]

Its floating click lock, and I was not there to clean that floor.

 

[Dolly Llama]

Its floating click lock

lta

 

[Islandguy]

What caused this damage ?

 

[FredC]

What caused this damage ?

Hard to say. IDK if "that damn installer glued them down not allowing for expansion" is the answer though. Are they actually click-locks (like mikey said) or one of the many LVP planks that use either a glue down or pressure sensitive adhesive?

That is cupping and ultimately the cause is moisture (bottom absorbing it and expanding). Since it appears to be on the main level (on-grade concrete) I'm more inclined to believe it is subfloor moisture causing the issue. That may or may not still be an installer issue because the moisture content should be checked (<4% usually)and for some products the floor "sealed"/moisture barrier/adhesive. Possibly too wet adhesive.


*assuming other recommendations like acclimation were followed

 

[Dolly Llama]

Are they actually click-locks (like mikey said) or one of the many LVP planks that use either a glue down or pressure sensitive adhesive?

I'd expect even a midwit like Mike would know if clickloc or not...

my best "guess" is cold material that spent a high desert winter night or three in the van and pulled right from the van to the floor.
and/or possibly a cold weather install before the HVAC was operable/running in a rush to complete a rehab
(been there/done that..."once" )

Installed over uncured concrete is possible too, but think that less likely

..L.T.A.

 

[FredC]

I'd expect even a midwit like Mike would know if clickloc or not...

my best "guess" is cold material that spent a high desert winter night or three in the van and pulled right from the van to the floor.
and/or possibly a cold weather install before the HVAC was operable/running in a rush to complete a rehab
(been there/done that..."once" )

Installed over uncured concrete is possible too, but think that less likely

..L.T.A.

It's moisture...

you wouldn't get that degree of cupping with weather related temperature/humidity changes imo

moisture moves through cured concrete (capillary action)...purpose of vapor barrier/sealing


as far as "click lock" I mean that the planks are only allowed to be floating/ gluing them is not allowed (like LifeProof)....this is not the case for all "click-lock" lvp products






*most are float only but we don't know what product was used

 

[hogjowl]

I think the pad machine caused it

 

[Mikey P]

I wasn't called in to address the situation, I nearly asked questions to the owner of the biz.

His landlord and contractor are battling it out .

Owners says click lock, no moisture barrier, over 40+to concrete, no leaks or flooding, damage is in select areas, appears to have an odd non vinyl but not MDF core to it based on my digging up a corner after he left.


I told him to get a third party inspector but he didn't want to rock to boat, just yet

 

[Nate The Great]

I'm certified in Concrete Moisture Testing and you won't find a ph less than 9..

I bet they didn't moisture test prior to installation, so ultimately it's the installers fault even if you have the homeowner sign a wavier.. The court will say "you are the professional".. I've seen it play out time and time again..

If a moisture testing isn't performed prior to installation, kiss the manufacture warranty goodbye..

 

[Mikey P]

This valley is so peterified the only way it's the concret is if there is a very odd spring below that very spot, which is possible, small srpings are all over, letting the pressure off Lake Tahoe, I suppose...

 

[FredC]

Maybe. Where are the water pipes?

 

[Mikey P]

I'll show these pics and others to the Resilant Floo Standards committee that I'm on and get more "speculations"...

 

[Mikey P]

Maybe. Where are the water pipes?

I don't know, but the rubber mats came out terrific

 

[Nate The Great]

How old is the slab/building?

 

[Mikey P]

How old is the slab/building?

40 plus

 

[Nate The Great]

Most likely doesn't have a fully functioning vapor barrier under the slab.. It degrades over time between 25-30yrs.. Our soil is slightly acidic here, so it's only lasts 25yrs on average.. Topically applied moisture mitigation product over correct profile substrate is needed to control the how much vapors are coming through the slab..

 

[SamIam]

So it cups??? Or did expansion cause pressure to bend it like Beckham