Hi, all. Jim had mentioned in another thread about Luan being an unsuitable underlayment. (I recently revived an old thread that had been already been solved, a fairly embarrassing thing to do for which I feel appropriately mortified for, lol. I mentioned the use of Luan in my post there. ) My boss usually includes Luan on our single family new construction projects to cut down on the amount of floor patch/ leveler that we have to use when installing lvp or sv. I haven't seen a warranty issues relating to it over the 8 or so years working at my shop. This includes projects completed during my time here as well as other homes they used it in up to 15 years ago. I definitely realize that the whole "just because I've never seen a problem" approach is both anecdotal and potentially dangerous. What are the potential problems that I should I be aware of with using Luan? What are a few alternative suggestions? Thanks in advance for your help and guidance. I know I don't post a whole lot here but I really have learned a lot from the wisdom and experience that is shared throughout these forums. Flooring is complex and interesting and i love learning more about the trade.