Laminate flooring, underlay for concrete floor?
Question:Does the underlay have to have a damp proof membrane if it's going on a concrete floor?
Answers:
Absolutely,
If not just for peace of mind but for warranty purposes.
All manufactures specify to use on all applications on, above, or below grade. Secondly I would look into a sound deadening pad that is dpm. What little more you spend on a good sound dampening underlay will give loads back to you on a concrete floor application. Most will run in the $60-$80 for 100' rolls. Well worth it. Good luck
no, there is a DPM under your concrete floor.
if you have noticed your concrete floor is damp, then the DPM could not have been laid properly, or has become damaged. if this is the case you could put one down under your underlay.
I used it on mine to be on the safe side.
id use it to be on the safe side
we used it throughout the whole house
You can get special underlay for laying direct on concrete. Easy to tell the sort as it has a shiny metal looking surface on one side.
Yes it would be sensible to have a damp proof membrane on a concrete or screed floor.Damp can come through a concrete layer.Then your underlay,either in rolls or in fibre squares.Make sure it is all level before the laminate goes down.
Use the foam underlay between the concrete and the laminate floor.
When laying the underlay, tape the edges of the underlay together. It will stop it moving when you place the laminate floor pieces.
As some have suggested, it could be good to use one anyway. Especially if you are unsure of a DPM coating under your concrete.
Maybe check with the manufacturer of your laminate - whether they will require you to have DPM in place for any possible wannanty claim, which is most likely when it would really matter. (It seems to be a common requirement for any such claims)
I did some online shopping around and bought some far better than the standard unlerlay with DPM included and it cost me less than any of the cheapest thinnest foam underlay rolls I've seen in the shops.
Yes, although your floor probably has one under the screed they can fail, also its just a good idea to do because to seperates your floor from the cold concrete floor which moisture can condense on and cause damp.
Most manufactuers now advise a dpm underlay on all ground floors regardless of construction
Try Timbermate Excel Silver Underlay
http://www.hardwoodfloorstore.co.uk/kahr...
If the house is less than 25 years old, yes you need underlayment with moisture barrier. I would still use it even if your house is older than 25 years though. Also, check with the flooring manufacturer as it may void your warranty should you not use a moisture barrier underlayment.
Yes, you need to put plastic under lay for laminate flooring. it is a must on cement floors. Good luck. I have installed laminate flooring for 5 years now
not nessasary ..if the concrete has a waterproof membrane then it should not be needed..
no not if its only a laminated floor if its a enginered floor then yes all you need is the underlay sponge and the floor on top of that. just make sure u have no dampness. good luck.
No, it doesn't HAVE to be. But most products are both sound and moisture barriers. The really cheap stuff is like see thru foam, and you will still hear the hollow 'tick tack' sound when you walk if you go cheap. Spend the extra 100 bucks because if that isn't reason enough...
IF there is ever a moisture issue, you whole floor won't be subject to failure.
Have fun installing!
Yes
Surprisingly concrete will soak up everything like a sponge. I would definitely get a damp proof membrane underlay if laying the floor on concrete.
Yes, Yes, and MORE YES!!!
Yes. You need to do a moisture reading the concrete salb and see if your concrete holds too much moisture. In some situations, laminate should not be used. Because, if you lay the laminate and it warps and they come out to test the concrete for you claim later and discover the moisture content was too high, you will be out of pocket. You will need to atleast lay 6 mil plastic or the warrantied product. The you can then lay the cushion seperate. . . or just buy the product together, which will cost you more, but save you some time in laying it.
Its best to use it anyway, because you never know what might happen to your floor.
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