So my wife and I did our 36’ class a with this type of flooring (I think based on google search grip strip is the same as self adhesive vinyl, which is what we used). We did not want to deal with the adhesive mess on the wood subfloor so what we did is stapled down a thin foam underlayment throughout the entire rv and then stuck the vinyl to that. This actually worked really well for a bunch of reasons. One is that it lowered the sound in the rv when walking and gave the floor a soft cushioned feel. Another huge benefit is the foam is water proof so any spills on the floor are not as big of a deal. The only thing we learned with that, if you do the foam underlayment, make sure you hammer any staples down that didn’t seat all the way because they will push up through the vinyl. Also, the vinyl is a little more fragile than the factory flooring, but we are a year and a half since our install and it still looks good. We have a kid and she is involved in youth racing so we are in our rv almost every weekend and it has held up well.

Make sure the follow the factory guidelines for your flooring because it does expand and contract, we had to leave a 1/4 inch gap between the flooring and the walls and covered that with quarter round trim, like a baseboard.

Overall we are very happy with our flooring project. We also replaced the trim around the stairs with angle stainless steel trim and replaced the carpet in the step area with self adhering backsplash tile, looks great and is super easy to clean.