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Can Acoustic Ceiling Tiles Be Stuccoed With Drywall Compound?

Applying drywall (stucco) compound directly to aluminum acoustic ceiling tiles is generally not recommended, as it can clog perforations and significantly reduce sound absorption. Acoustic performance relies on open perforations to allow sound waves into the insulation core. Filling these holes with joint compound blocks the acoustic pathway. However, if a textured finish is required, consider these steps: use a lightweight, spray-applied acoustic texture designed to bond to aluminum without plugging perforations. Alternatively, apply drywall compound sparingly only to seams and edges for a monolithic look, leaving the central panel perforations clear. After taping and feathering joints with a minimal coat, sand lightly and touch up with a thin texture spray. Always test a small panel sample to measure the NRC rating before full application. For best results, consult aluminum ceiling manufacturers for compatible acoustic finishes or pre-textured panel options. This approach preserves the acoustic integrity of the aluminum ceiling system while achieving the desired stucco appearance.


Can Acoustic Ceiling Tiles Be Stuccoed With Drywall Compound? 1

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