subceiling
/ˈsʌbˌsilɪŋ/
noun
- A secondary ceiling installed below the main ceiling, often for insulation, soundproofing, or decoration.
- They added a subceiling in the basement to improve energy efficiency.
- The old building had a subceiling that hid the original ornate plasterwork.
- The contractor installed a subceiling to reduce noise from the floor above.
Antonyms