SMARTPLY MAX FR B Flame Retardant panel is a structural, moisture resistant OSB/3 panel with outstanding and reliable reaction to fire properties. Ideal for use where strength, moisture resistance and improved flame retardance are paramount. SMARTPLY MAX FR B achieves a Reaction to Fire Classification of B-s2, d0, and Bfl-s1 (flooring) in accordance with EN13501-1. SMARTPLY MAX FR B is CE certified according to EN 13986 and meets the requirements for load-bearing panels for use in humid conditions (Type OSB/3) as defined in EN 300 and Eurocode 5.