I was wondering if I can use the sisal rug (extremely low Nap) and a vapor over it as the underlay for a bebop floating floor? Inlaid out some of the planks to look at color and it is lying flat and comfortable to walk on. It is a "click" floor
No manufacturer will warranty this. I have seen a relative of mine install an 8mm laminate over properly glued down commercial carpet with no ill effects in the past 8 years. That was an extremely low tight nap and it was fully adhered though.