access panel ceiling
-
...
grid ceiling material

Conclusion
In addition to thermal performance, rigid mineral wool boards offer excellent sound attenuation properties. The dense structure of these boards absorbs sound waves, making them an ideal choice for applications in areas where noise reduction is essential, such as theaters, recording studios, and multi-family housing units. With increasing urbanization, noise pollution has become a significant concern, and employing effective sound insulation solutions is critical for improving the quality of life in densely populated areas.
rigid mineral wool insulation board

Ceiling hatches are openings installed in ceilings that allow easy access to spaces above, such as attics, roofs, or service areas. These hatches can vary in size and design and may be constructed from different materials, including wood, plastic, or metal. Their primary function is to provide a convenient way to access maintenance areas without having to remove ceiling panels or create larger openings.