10mm is a great starting point.
Can underlayment be installed over carpet.
However if you do not want to rip up your carpet you can use plywood between the carpet and rubber to create a subfloor.
On the face of it installing new carpet over the old carpet does have some advantages.
However some carpet tiles do come with attached padding and other features that make them appropriate for use over concrete or in children s play areas.
It s in your best interest to uninstall the carpet and underlayment and install your floating floor ontop of the subfloor.
To speed up the process of installing a carpet underlay you can get our carpet fitting kit.
Second if any moisture was to get in between the plywood and carpet you can have an underlying mold issue.
And if the existing carpet was glued down not tacked it can be a huge time saver to lay the new carpet over the old.
Underlayment can also ensure you re not driven mad as the dog s nails clack along the floor with every step.
Carpet tiles with padding are not the norm since plush underlayment can cause problems with installation or cause the tiles to lift.
The first it will be too much cushion under the plywood to be a properly supported subfloor for the laminate.
We do not recommend installing rubber tiles over plush carpet as it can provide an even and unstable surface beneath the rubber which would be unsafe for you.
You can see how to do that in our video.
Before you can get started you need to do a series of checks on the area where you re going to place the carpet.
I know i can t install vinyl tiles over it so i want to put a layer of plywood on top of carpet underlayment to make it more.
When it comes to installing a new flooring material you sometimes have the option of installing the underlayment for your new floor directly on top.
Go as thick as possible and this will also help to even out any small areas of unevenness such as the grouting between the tiles.
Laying underlayment over an existing flooring.
It saves on the cost and labor of pulling up and disposing of the existing carpet keeping carpet waste materials out of the landfill.
As i need to keep an extra layer of sound insulation due to leasehold policy i have decided to keep carpet underlayment.
It can also be used under hardwood laminate and carpet but this is much less common these days because subflooring is typically smooth enough for these materials many of which are installed with a different type of underlayment or pad.
Plywood underlayment is a thin plywood material that is most commonly used under resilient flooring materials such as vinyl and linoleum sheets and tiles.
If installing over concrete in a basement the vinyl planking is likely to be fine if there s a moisture issue but a moisture barrier will also help control air humidity in the space.