Armstrong Biome Delta (ST262) shares a 20-24% light reflectance rating with Monsoon, placing it between Mirage (35-39%) and the two darkest Savannah colors, Maelstrom and Ferralite. Delta appears as a medium-dark brown-gray with weathered streaking, warmer than the grayer Monsoon.
Plan for temperature control. The planks and adhesive need at least 48 hours in the room before installation, and the space should stay between 65°F and 85°F from 48 hours before the job until 48 hours after. Once the floor is in service, keep it between 55°F and 85°F, which matters in buildings where the HVAC shuts down for long stretches. Over radiant heat, the subfloor surface must stay at or below 85°F.
Finish: Diamond 10 Technology
Installation and warranty: Full-spread glue-down. The 30-year commercial limited warranty requires a recommended Armstrong adhesive, such as S-995 or S-1000, installed according to Armstrong's instructions.