American Duet Vintage Pine by Armstrong

Q: I would like to purchase the American Duet Vintage Pine Narrow by Armstrong but it doesn’t look like much padding on the underside.
I’ve seen some other Armstrong and Pergo models that have the underlayment or padding attached.
Do I need more underneath the American Duet Vintage Pine Narrow by Armstrong?
A: The Armstrong flooring you’re looking at from the Nature’s Gallery collection does not include an attached underlayment – so you will need to purchase an underlayment to install this floor and maintain your warranty.
One of the cool features to this collection and the Vintage Pine you are looking at is that it comes in a wide and narrow format. This allows you to buy both widths and intermix them while installing your floor to give the appearance of a random width floor. This is a very popular approach which has been done by Virginia Vintage in a 3/5/7 format with their hand-scrapped engineered floors.
The benefit of not having a pre-attached underlayment is the flexibility to pick any underlayment of your choosing. Many customers will do this to use a more premium underlayment such as Cork or Sound 6, although this does involve spending a little more than with floors having pre-attached underlayments, you will usually get better performance from these floors.