1.   And it is uncannily quiet, thanks to liberal use of sound insulation.

2.   As a substitute for the ceiling tiles, which were used for sound insulation, King County has proposed blue and teal fiberglass ceiling banners.

3.   A builder said to put sound insulation in the wall.

4.   Officials added they believe noise impacts will drop as quieter airplanes and jets are developed, but also propose the continuation of a sound insulation and property acquisition program.

5.   The foam remains when the concrete cures, adding to air and sound insulation.

6.   These include installation of sound dampening insulation in the Zarya module to quiet a noisy air circulation system.

7.   This is not an inherently smooth engine, but vibration-absorbing motor mounts and lots of sound insulation tame its rowdy behavior.

8.   When both doors are closed there will be a dead air space trapped between them, and this will provide the best sound insulation of all.