Do not install this Pergo product in Arizona
Do not install this Pergo product (or any of their products) if you live in the South West. I'm not sure why they even sell this in Arizona.
Learn from our mistake. We live in Gilbert, a suburb of Phoenix and a couple years ago we decided to remodel our house. We went to our local Lowes and found this brand new Pergo product which at the time was supposed to be their latest and greatest product. We really liked the look and feel of the planks and the label said it was waterproof. We were sold. We asked the Lowes flooring expert about acclimation and he told us as long as our house temperature was close to the same as the store we didnt really have to let it acclimate but Pergo recommends 48 hours. An IMPORTANT NOTE, all the important information you NEED to know is printed on the back side of the label which is located under the plastic that covers the package. Anyways, we made the purchase and actually let the flooring acclimate in our house for over a MONTH. We thought surly this would be long enough for any shrinkage to occur before we installed it. NOPE!!!!! Here is where its important to read the teeny, tiny writing on the back of the label. Its so small that even with my readers on I had to use my phone. The most important part for our installation and for anyone who lives in the S.W. is, "Laminate floor is suitable for use in climate controlled (35-65 RH and 60-85° F) indoor installations only". Well here in greater Phoenix area the relative humidity swings are greater than 35-65. We installed our flooring in the early summer where the humidity was in the 40-45% range. During the middle of the summer it climbed into the 50-55% range. Everything was looking GREAT, until the Fall and Winter where the humidity level drops down to the teens. We started to notice some small separation between some of the planks (not all) and then they got bigger and bigger to eventually gaps of 1/8 of an inch. WTF?!?!?!? We took photos, opened up a claim with Pergo through Lowes. They (Pergo) sent out a "flooring expert" to evaluate our installation. He confirmed that yes indeed there was major separation. He submitted his report to Pergo and they responded to our claim saying they were not going to do anything for us. Again, WTF?!?!
If you are dead set on buying and installing this product do it in the winter when the humidity is low and the flooring has shrunk and make sure you give enough space for it to expand in the summer. And you might want to also buy a whole house humidifier to eliminate the humidity swings.

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