How slip-resistant is the surface during wet British winters?

It is exceptionally safe. Rinato Natural is engineered with a deeply embossed, high-traction wood-grain texture. It undergoes rigorous UK pendulum testing (BS 7976-2) and achieves a “low slip potential” rating in both wet and dry conditions. Because the polymer cap absorbs virtually zero moisture, it denies green algae the damp environment it needs to grow, eliminating the primary cause of dangerously slick timber decks.