Heads up: There are no amended sections in this chapter.
This section has been amended at the state or city level.
(The provisions contained in this appendix are adopted as part of this code.)
Air-borne sound insulation for wall and floor-ceiling assemblies shall meet a sound transmission class (STC) rating of 45 when tested in accordance with ASTM E 90. Penetrations or openings in construction assemblies for piping; electrical devices; recessed cabinets; bathtubs; soffits; or heating, ventilating or exhaust ducts shall be sealed, lined, insulated or otherwise treated to maintain the required ratings. Dwelling unit entrance doors, which share a common space, shall be tight fitting to the frame and sill.
|ASTM E 90—04||Test Method for Laboratory |
Measurement of Air-borne Sound
Transmission Loss of Building
Partitions and Elements
|ASTM E 492—09||Specification for Laboratory |
Measurement of Impact Sound
Transmission through Floor-ceiling
Assemblies Using the Tapping
|The Masonry Society|
|TMS 0302—12||Standard for Determining |
the Sound Transmission Class Rating
for Masonry Walls