Rafter Negro is a 30x60 cm glazed porcelain tile with a concrete look and a matt finish with structure. Its deep charcoal-grey face is crossed by lighter diagonal streaks that add movement to the dark tone. Key specs for choosing: water absorption < 0.05% (ISO-10545-3), breaking strength > 1800 N (ISO-10545-4), surface abrasion resistance Class PEI 4 (EN 154), stain resistance Class 5 (ISO-10545-14), slip resistance (COF) > 0.40 dry and > 0.40 wet (ISO-10545-17) and reaction to fire Class A1 - A1 fl. A 60x120 cm size is also offered, and the Rafter collection extends to Rafter Taupe, Rafter Tan and Rafter Cemento.