I saw that stuff too! Well, you could be talking about two different things 1) composite decking or 2) the actual indoor product that is kind of rubberized locking boards.
My concerns:
- The composite decking is way heavy for a standard marine installation.
- It is still very costly.
- Neither of the surfaces offer very good footing with fish slime smeared on it. In fact, My floor with the rubber dust is just abraisive enough to get a little footing in that case.
- The pergo type stuff would still get water/ice heaving between it and the decking, or between it and itself should the boat be stored below freezing in the winter.
There is this marine vinyl stuff that people do like, i think its called nautlex or something like that.