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The Cortega is a 2 ft. x 2 ft. lay-in ceiling tile made of wet-formed mineral fiber, sold in packs of 16. It is a basic, budget-tier panel: a Noise Reduction Coefficient of 0.55 and a Ceiling Attenuation Class of 33 put it in the middle of the pack for sound, well below high-performance acoustic tiles that reach NRC 0.70 or higher. Light reflectance of 0.82 keeps rooms reasonably bright without the cost of a high-reflectance panel. It suits basements, offices, rentals and repairs where a clean white square-edge tile matters more than premium acoustics.
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Lowest price we've seen: $87.47 on Nov 8 at Lowe's. Tracked across 7 stores since Nov 8.
Owners treat the Cortega as a dependable budget tile for patching and finishing standard grids. Most praise the fit and clean look; complaints center on edge chipping and modest sound blocking.
The Armstrong Cortega is a 2 ft. x 2 ft. acoustic ceiling tile made of wet-formed mineral fiber. Each tile is 5/8 inch thick, white, and has a plain backing. The tiles meet ASTM E1264.
The tiles have a Noise Reduction Coefficient (NRC) of 0.55 and a Ceiling Attenuation Class (CAC) of 33. Light reflectance is 0.82. The tiles are rated for temperatures from 32 to 120°F.
