Go to Pergo.com, click 'Americas', then follow the links for 'Install and Performance'. From there, you'll see a number of options addressing your question, and more.
It's best that you read the Warranty too. That will help 'educate' you on what type of scenarios are covered and aren't, in addition to how you can VOID your warranty. Remember, if you miss or mess up one, little thing, Pergo will void the Warranty. I've yet to hear anyone that's successfully made a claim with Pergo. This is not to discourage you because the same principle applies to almost anything w/a Warranty. It's just that Pergo has a large number of 'limitations and exclusions' in their Warranty and Sales Pitch that are 'hidden' to the average customer.