Solid Hardwood, Engineered and Laminate Flooring - Green core laminate

I've just seen a lot of green core (ususlly brown) planks that claim they are more water resistant. Can someone tell me how good they are? And what makes them more water resistant?

Thanks in advance.

The ONLY difference that green laminate core provides is that it is green! There is more sales "puff" and misinformation about this issue than any other relative to laminate flooring.

For what it's worth, I installed a green HDF product (Quick Step Uniclic laminate tile) in my kitchen/bath/entry area. Yes, it is not recommended for baths, but wives don't accept that because "it's only a half bath, we're not taking a bath in there". Anyway, I mistakedly left the sink trap joint loose shortly after re-installing it (note-to-self: don't do anything important at 2 AM) and water sat on the floor under the 10" pedestal for I'm guessing a couple days. It was even sitting on a joint between tiles, and, although there was probably some swelling, there was none that I could see. The product held up nicely.

geek, That particular product has a wax treatment to the plank edges to resist moisture invasion and the tightest joinery in the business. The joinery is shared with selected others. They added the green die to the core material at a time when they were opening an additional plant. They make both colored products. All that said; you have a good product, a proper installation and a little luck too. ;)

One problem not usually addressed with water damage and your laminate flooring is mold. Even if it doesn't damage the flooring, if the water migrates underneath, it usually doesn't have any opportunity to dry out and is held there by the moisture barrier and can create quite a moldy/mildew mess without you even knowing until it starts to smell or make family members ill.
So if you flood your flooring, you may still have to consider pulling it up to check for water being trapped underneath.

I sell laminate and have laminate in my own home and love it. This is just one extra consideration when deciding if or where to install a laminate flooring. We have replaced several floors that had marginal surface damage due to water, but when the floor was pulled up, eeeekkkkk---what a stinking (literally) mess because of the mold/mildew.