Armstrong Tectum 2x4 Acoustic Ceiling Tiles vs Armstrong 2x4 Acoustic Ceiling Tiles

Both are Armstrong 2x4 mineral fiber lay-in panels for a 15/16 inch grid, but they serve different jobs. The Tectum tile is the tougher, higher-performing panel: 1 inch thick, NRC 0.75 for real sound absorption, CAC 35, and built for pools, gyms and industrial rooms. The Plain White tile is a thinner 1/2 inch panel with a smooth finish, moisture resistance and CAC 30, aimed at basements, storage rooms and utility spaces. Buy Tectum where noise and abuse matter; buy Plain White for a clean, low-cost ceiling in dry or damp utility areas.

• Choose the Tectum tile if you need sound absorption in a gym, pool, studio or industrial room and want a panel that takes knocks and repainting.
• Choose the Plain White tile if you want a smooth, bright ceiling for a basement, storage room or utility space and moisture resistance matters more than sound absorption.